Figure 1: Replacing conventional, discrete power conversion with power modules throughout the vehicle provides significant cost and weight savings in EVs
Greg Green, Director of Automotive Marketing, Vicor
The electrification of the automobile is presenting new challenges for power system designers in achieving the highest power density at the lowest weight possible, eliminating compromises in vehicle range and overall performance. Designers of power delivery networks (PDNs) are also tasked with designing safe, effici
Jeff Gruetter Sr. Product Marketing Engineer, Power Products Linear Technology Corporation
The market size for high brightness (HB) LEDs is expected to reach $12 billion in 2012 and grow to $20.2 billion by 2015 with a 30.6% CAGR ramp (source: Strategies Unlimited). One of the key application
The need to reduce active-mode power consumption is somewhat obvious. What has not been so obvious is the need to minimize power drain in standby and no-load when products are essentially doing nothing.
In many of today's RF power measurement applications there is a need to make multiple power measurements simultaneously. Added complexities occur when the measurements need to be obtained from places
The usage of LEDs in automotive applications continues to grow due to their longer service life and lower power consumption. Simultaneously, the diversity and size of integrated state-of-the-art instrument
Maurice O' Brien, Product Marketing Manager, Power Management Division, Analog Devices
As the form factor of machine vision systems continues to get smaller while the processing power in these systems continues to increase rapidly. Power management is becoming a more important design
Electric lighting has been around since the first commercial incandescent lamps were sold in 1880. Since then, we have seen little widely adopted innovation - the introduction of the fluorescent in
Sajol Ghoshal, Director, Sensor Driven Lighting Business Unit, ams AG
Incumbent lighting installations today fail to address the most important energy saving "feature" a lighting system can implement, namely maintaining a user-defined amount of light that considers
Ian Moulding, Marketing Manager, SBR Business Unit, Diodes Incorporated
With their attractive low forward voltage drop and significant cost advantage, it's no surprise that Schottky diodes have become a defacto standard for AC bridge rectification in a myriad of different
Going from lanterns to LEDs, in a nutshell, describes the course of development in automotive lighting since cars first came on the scene 100 years ago. What originally served only a functional purpose
Lighting controls are becoming ever more sophisticated with the capability to provide real-time data on system status, settings, light levels, energy consumption, etc. For some applications this level
Cristian Ionescu and Ceyda Akbay, NXP Semiconductors
When it comes to home appliances, the overwhelming focus tends to be on advanced features and functionality. Nevertheless, design choices that enhance user safety and overcome possible malfunctions
Power supply design trends are clear and dramatic: additional features, improved efficiency, and smaller size for the same power ratings, for both battery-powered portable units as well as larger,
Industrial power supplies need to have very high efficiency today and often times need to be highly compact. In combination with the typical 24V rail available, many solutions utilize a switching
Patrick Le Fèvre, Marketing and Communication Director, Ericsson
A comparison of alternative on-board power solutions is rarely at the top of the agenda for a board designer. Often designers will use a previous solution because all available resources and time
Alberto Guerra and Diego Raffo, International Rectifier
Considering that almost 60 percent of total electric energy produced worldwide is used to run motors of every size, shape and efficiency, the adoption of variable speed drives can save as much as 70 percent of energy costs by controlling the speed of the load. New energy efficiency standards for compressors an
Marcus O’Sullivan Applications engineer, Power Management Group, Analog Devices
Many high power systems require the use of a hot-swap device to safely control of the inrush currents at powerup and provide fault protection.
These circuits are commonly found in systems such as servers, network switches, redundant-array-of-independent-disk (RAID) storage, and other forms of communications infrastru
By Michael A. Stout, V.P. Engineering, Falcon Electric
When used in a controlled temperature environment ranging from 0?C to 40?C (32?F to 104?F) any domestically available on-line UPS should meet the requirement, as most have been tested and approved
By David Reusch, Ph.D., Director, Applications & Stephen L. Colino, V.P., Sales & Marketing Efficient Power Conversion Corporation
Designers of point of load (POL) converters used in 24 VDC systems traditionally have had to decide between the high cost of an isolated converter and the low frequency and efficiency of a buck
Manufacturers are increasingly focusing their efforts on energy conservation. This trend is reflected in the growing emphasis on both renewable energy and energy efficiency measures to reduce the
1. Biasing with a static DC voltage and measuring current: This is the most basic application of DC power related bench instruments. Any power supply, so long as it has the right voltage and current
Wolfgang Dreipelcher, Senior Director, Global Reference Designs, EPCOS
The power-semiconductor switches used in power supplies and inverters are based on two technologies, namely MOSFETs and IGBTs. MOSFETs can operate at relatively high switching frequencies significantly above 30 kHz but, unlike IGBTs, they have a very large chip surface area.
A new generation of IGBT modules f
Trevor J. Smith, Technical Marketing Manager, Tektronix
Mobile electronics can be found everywherehomes, hospitals, schools, purses, and pockets. With the explosion in portability, consumers have come to expect and demand long battery life. Energy-efficient
Figure 1: Hall-effect sensors can mount in three locations: inside the motor, at the end of the motor's shaft, and around the rotor shaft's ring magnet.
Josh Edberg, Global Marketing Manager, Honeywell Sensing and Control
As energy efficiency and cost savings become the biggest drivers in the design of electronic equipment, BLDC (brushless-DC) motor manufacturers must adapt to these new requirements, and deliver motors
Andrew Smith, Senior Product Marketing Manager, Power Integrations
Solid-state exterior lighting requires a regulated AC to DC power supply to drive LED loads which can vary in size from 1 W to over 500 W. To ensure a good return on investment, these power converters
Chris Glaser, Applications Engineer, Texas Instruments
In many low-power battery-powered applications, cost is king. If the cost to produce a device is above a certain threshold, determined by the device's functionality and the market, that device simply
Figure 1: Transformers that utilize the auto-zigzag construction can perform the delta to wye transformation without the efficiency loss of an isolation transformer.
Robert W. Johnson, Chief Engineer, Platform Development and Intellectual Property, Eaton
The most common options for increasing data-center energy efficiency, including elimination of the PDU (power-distribution unit) and converting to DC power, require disruptive, expensive, and time-consuming
Figure 1: The SignalGuru application from MIT and Princeton, saves drivers an average of 20% fuel costs compared to those that had to stop at traffic lights.
Chris Sullivan, Technical Marketing, Newark element14
A city by its very nature tends towards chaos. As the population of the world continues to grow, so does the population living in urban areas. The need to maintain all of the essential services
Embedded systems commonly use Flash memory to store firmware. Occasionally, the firmware stored in the Flash memory in some systems is accidentally corrupted, preventing the system from booting up
LEDs promise to change the world, and few doubt that they will. However, a key limiter to more rapid adoption is the cost of the LEDs themselves. The cost breakdown of LED luminaires varies, but it
Alison Steer, Product Marketing Manager, Mixed-Signal Products, Linear Technology
PoE (Power over Ethernet) has been increasing in popularity due to its flexible and cost-effective method of delivering both power and data over a single Ethernet cable. This allows equipment to be
Figure 1: A network topology for wind-farm applications makes use of redundant devices and cabling to maximize system uptime and minimize the operational consequences of single points of failure.
Diane Davis, Director of Product Management, Ethernet Networking, Red Lion Controls
Data is a key element to the successful operation of a wind farm. Real-time data access allows operators to monitor wind turbine uptime, performance, and power outputeven from remote locations. This
Dr Peter van Duijsen, Technical Director, Simulation Research
The market for green and renewable energy is growing, but also presents numerous new challenges when it comes to technology, environment, and acceptance. Concerning technology, these challenges require
Dirk Witthaut and Marc Timme, Dynamics Group Researchers, Max Planck Institute for Dynamics and Self-Organization
Such a dense power grid however may not be as vulnerable to power outages as some experts fear. One might assume that it is much harder to synchronize the many generators and machines of consumers,
Dave Andeen, Strategic Segment Manager for Energy, Maxim Integrated
The smart grid surrounds us these days. In the U.S., approximately 36 million smart electricity meters have deployed since 2007 (reference 1). In Europe, both Italy and Sweden have each achieved complete
James Cox, Head of Market Analysis, Pöyry Management Consulting
Pöyry Management Consulting has conducted a series of studies over the last two years to investigate how European energy markets would need to evolve in the face of the radical changes expected from
Brian Huffman, Sr. Strategic Application Engineer and Roel van Ettinger, Analogue Design Engineering Manager, Micrel
The proliferation of portable connectivity devices over the last decade has seen most of us become more reliant on technology than ever before. At home and at work, as we embrace technology, we demand
Alan Gooding, Managing Director, Smarter Grid Solutions
The power industry faces some significant future challenges: to create a more visible and controllable electricity grid to deliver power more reliably, efficiently, and cost effectively and find smarter
Willie Chan Sr. Product Marketing Engineer Linear Technology
Properly implemented, galvanic isolation is an effective defense against disturbances in the ground plane often referred to as ground loops, which occur as a result of varying electrical potentials.
Physical limitations require that electrical components on a PCB connect to the ground plane at different physical
Nelson Garcia, Engineering Manager, Renco Electronics
As high-tech electronic products and their power supplies continue to shrink in size, design engineers should look closely at the peak-current handling capability of power inductors.
Design engineers
Ralf Walter, Application Engineer, Infineon Technologies AG
Thermal challenges accompany almost all advances in power-electronic designs. Load cases not covered under a datasheet's parameters are often particularly problematic.
Each new MOSFET generation
Frank Hinrichsen and Mark Ahmling, Wind and Sun Technologies
Planners of photovoltaic power plants are no longer bound to string inverter concepts if multiple MMP(maximum power point)-trackers are required. Central inverter systems are, today, standard for
Stéphane Rollier, Product and MarCom Manager, and Bernard Richard, Business Development Manager, LEM
Designers of solar power—photo-voltaic or PV—generating systems face some of the same problems as their counterparts in any other power-related technology: the need to constantly improve performance, reliability, longevity, and—above all—efficiency. As with any engineering endeavour, improved performance re
Andrea Longobardi, Product Definer and Corporate Applications Engineer, Maxim Integrated
The DiSEqC (digital satellite equipment control) standard is a communication protocol developed by Eutelsat used between a satellite receiver (decoder), defined as the master, and satellite peripheral
Figure 1: Emerson Rosemount's 3051S series wireless instrumentation exemplifies the benefits WSN brings to industrial applications: It can reduce total installation costs by 45% and total deployment time by as much as 75%, eliminating design and installation time and cost associated with wiring, conduit, cable trays, and junction boxes.
Harry Forbes, Senior Analyst, Automation, ARC Advisory Group
Wireless sensing is the most important new technology in process measurement to appear in decades. For this reason alone, it has attracted the sustained attention of ARC Advisory Group and other industry
Bob Callanan, Applications Manager and Julius Rice, Applications Engineer, Cree
To demonstrate the advantages of silicon-carbide MOSFETs versus silicon IGBTs (insulated-gate bipolar transistors) when used in high-power, high-frequency circuits, it is necessary to employ a test
Alison Steer, Product Marketing Manager, Mixed Signal Products, Linear Technology
Advances in medicine and medical treatment bring the promise of more-accurate diagnoses, new treatment methods, and more patient-friendly medical care. From high-resolution imaging systems to drug-delivery
Figure 1: Transmission line circuit illustrating the impedance mismatch boundary between the transmission line and the load. Reflections occur at the boundary designated by ?. The incident wave is V+ and the reflective wave is V-.
by Wilson Tang, Member of Technical Staff, and Tom Au-Yeung, Director of Customer Applications, Maxim Integrated
Impedance mismatches in an RF transmission line causes power loss and reflected energy. The VSWR (voltage standing-wave ratio) is a way to measure transmission line imperfections. In an RF electrical
Ramesh Balasubramaniam, Marketing Director, and Håkan Karlsson, Field Application Engineer, International Rectifier
Digital power has emerged to satisfy the need for power supplies capable of handling the complex and rapidly changing power demands of high-performance computing subsystems. These include equipment
Seppo Vahasalo, Product Line Manager, Medical Devices, SGS
Manufacturers are required by the 3rd edition of IEC 60601-1 to avert the poor usability risks involved in identification, marking, and documents, which can be achieved by an "application of usability
Figure 1: Southampton hands. Across each palm can be seen a dc motor with a worm and wheel to rotate the thumb. Five other motors flex and extend the fingers and thumb. The fingertips have touch (force), slip/texture, and temperature sensors.
Dr Paul H Chappell, Faculty of Physical and Applied Sciences, University of Southampton
For an upper extremity amputee, mass is a main factor when choosing an artificial hand. A hand should be lightweight so that high pressure points do not develop inside the plastic socket that attaches
Figure 1: The 8-bit data registers in the SPI Master and Slave devices link through the MISO and MOSI signals to form a 16-bit control register. (Click image to enlarge.)
He Junhua, Senior Technical Marketing Engineer, Avago Technologies
The simple SPI (Serial Peripheral Interface) bus is a popular serial interface commonly employed in automotive, industrial-control, and communication applications. To provide isolation and minimize
Dr. Arthur Chiang, Director of Reliability Engineering, Vishay Siliconix
Though copper wire bonding developed nearly 30 years ago, it has only recently gained in popularity due to the rapid increase in the price of gold, which is now about 7,000 times that of copper (Reference
Paul Wilmarth, Director, Consumer Segment Marketing, ams
TVs in households are regular companions for many people around the world. It is common that people have the TV on in a living room while preparing a meal in the kitchen. In many cases, the TV is
WonSeok Kang, Senior Application Engineer and Youngbae Park, Application & System Engineering, Power Conversion, Fairchild Semiconductor
LEDs provide high-efficiency, environment-friendly characteristics, and a long life compared to conventional lighting sources. Therefore, they are becoming a primary light-source choice to reduce
Ann Starks, Applications Engineer, ON Semiconductor
Competitive markets put pressure on OEMs to improve energy efficiency in their product designs.
Accordingly, it is important to be able to monitor accurately currents through critical paths
Graham Allan, Senior DDR IP Product Marketing Manager, Synopsys
To deliver new features and higher performance in consumer-electronic products, SoC developers constantly look to integrate more functionality into their designs.
SoCs with more features
Laurent Gonthier and Martial Boulin, Application Development Managers, STMicroelectronics
High-temperature TRIACs present several benefits particularly useful in applications demanding high current density or imposing high-temperature environments.
These applications include
Howard Self, Program Manager - Cleber Angelo, Medium Voltage Global Outdoor Product Manager, ABB
A power industry consultant recently asked for assistance solving a reliability problem for a municipal utility.
The utility had recently experienced disturbances on its system, negatively
Erik de Jong, Managing Director, Flex Power Grid Laboratory, DNV KEMA
An increasing number of DERs (distributed energy resources), which include storage systems, are connecting to the grid by means of inverters.
This is already evident in countries with dedicated
Kris Ardis, Business Director, Smart Grid Products, Maxim Integrated
Investment in smart meters and smart-grid end equipment continues to grow worldwide as countries try to make their electric delivery systems more efficient.
As critical as the electric delivery
Figure 1: Each stage of embedded-software validation for electric-motor simulation introduces new challenges for test engineers such as high-speed processing and high-power signals.
Nick Keel Product Manager, National Instruments, VeriStand - Frank Heidemann CEO, SET GmbH
The growing adoption of electric motors in the automotive industry creates new challenges for embedded-control-system developers and test engineers.
Control algorithms for electric-drive
Marianne Germain, PhD, CEO - Stefan Degroote, PhD, COO - Joff Derluyn, PhD, CTO
GaN appears to be a highly suitable material for power switching devices operating at high frequencies without suffering major losses.
The Promise of GaN
This is due to the drastically
Jitesh Shah, Principal Engineer, Integrated Device Technology
Semiconductor manufacturers use wire bonds extensively to connect a chip's I/O pads, including power, to its package's external pins.
Wire bonding processes typically use gold wire because
Manufacturers are electrifying more functions within a car, reducing the mechanical load on the internal-combustion engine. These functions include water, oil, and fuel pumps; valve actuation;
Figure 1: An example of a shielded air-core open-loop current sensor from Raztec provides a strong combination of high performance in a small package and at low cost.
The Automotive industry has long been the ultimate test ground for electronic components. Few terrestrial environments present such a combination of demands as does the under-hood locale
David Jacquinod, Application and Marketing Manager, Automotive Business Unit, International Rectifier
Automatic engine stop-start is effective in helping reduce CO2 emissions from private cars. When integrated in an otherwise conventional combustion-engine power train, engine stop-start
Shrijit Mukherjee, Sensor Applications Engineer - Robert Breakspear, Principal Applications Engineer - Sean D Connor, Applications Engineering Manager, Plessey Semiconductor
EPIC (Electric Potential Integrated Circuit) is a very-high-impedance electric-field sensor that measures the ambient electric field with minimal disturbance. EPIC sensors are suitable for
Shaun Milano, Strategic Marketing Manager - Michael Doogue, Director, Linear and Current Sensor Business - Georges El Bacha, Systems Engineer, Allegro MicroSystems
Consumers are embracing environmentally friendly green cars due to the rising cost of fossil fuels and a growing concern for the health of the environment. Sales forecasts predict that green
Fritz Burkhardt, Senior Technical Engineer, Marketing, STMicroelectronics
Minimizing energy consumption has become a major factor for any new product design in recent years. Hardly any industry can afford to disregard this issue in the definition, development,
The number of power supplies on a board depends on the VLSI chip complement, the communication speed between them, and the number of other devices that require unique supplies.
This
DCL (direct current leakage) is an effect common to all capacitors. DCL values and behavior under varying electrical and environmental conditions relate to the capacitor's dielectric. The leakage
Trevor Barcelo, Product Line Manager Battery Management Products, Linear Technology Corporation
The first trend requires increased battery capacities. Unfortunately, users are often impatient and charge systems must recharge these increased capacities in a reasonable time, which leads to
Figure 1: A typical AES design includes power sources sharing a common high-voltage DC Link, an inverter for generating AC, and a system controller ensuring coordinated operation.
Chun Keong Tee, Technical Marketing Engineer, Avago Technologies
Solar- and wind-power-based home AESs (alternative energy systems) are becoming more popular among consumers.
To achieve the product lifetime that consumers demand and ensure user safety,
Masoud Beheshti, Director of Product and Marketing Strategy, Texas Instruments, Power Supply Solutions
The intricacies of power design are not conversation pieces for electronic-product consumers. Nor should they be.
Consumers care about visible signs of power design in the product, including the
Figure 1: The principle of fuel gauging based on coulomb counting: The stored energy represents state of charge. A circuit measures the in- and out-flowing current.
Isidor Buchmann, CEO & founder, Cadex Electronics Inc.
For simplicity, you can imagine the battery as an energy storage device analogous to a fuel tank. However, measuring stored energy from an electrochemical device is far more complex than that comparison
Maurizio Salato, Director of Systems Engineering, Vicor
Traditionally, PFC (power-factor-correction) controls present a purely resistive behavior with respect to the power line.
By means of multiplier or equivalent blocks, front-end converters draw
Ty Bowman, Global Battery Market Manager, TE Connectivity
Li-ion technology with smaller, lighter-weight, and higher-power batteries is now replacing nickel-cadmium or lead-acid batteries in high-discharge-rate battery applications.
Meanwhile,
Over the past decade, controller-IC manufacturers have worked to reduce so-called vampire or stand-by power consumption. Organizations such as Energy Star in the US, Blue Angel in Germany, and CNIS
A significant percentage of a building's energy consumption is due to its lighting.
Historically, lighting was a coarsely controlled power load, managed manually with a simple on-off switch. With
Shane Callanan, Director of Applications Engineering, Excelsys Technologies
LEDs are gaining significant traction in the lighting market due to their long operating lifetime, low running cost, and ease of control for specific applications.
However, in order to realize
Author: Tony Armstrong, Director of Product Marketing, Power Products Linear Technology
Incandescent light bulbs waste 90% of the energy they consume in the form of heat.
The light outputs from HB (high-brightness) LEDs have already exceeded the critical milestone of 100 lm/W. In fact,
Figure 1: Modern robotic systems featuring sophisticated multi-axis arms are adding to factory productivity and safety. Simply picking up an object can require several sensors.
Automation is providing improvements in safety, accuracy, and convenience for many everyday applications.
Consider the precision and advantages of computer-assisted surgery or the array of automation
Peter B. Green, LED Group Manager, International Rectifier
Solid-state lighting applications such as streetlights and industrial lighting demand drivers that offer better efficiency than the traditional flyback topology in the 50250 W power range.
As
Figure 1: One-Stage Approach: The driver converts an AC-rectified line voltage to the necessary DC current through a flyback transformer and filter. Unfortunately, the rectified voltage contains ripple at twice the line frequency (100 or 120 Hz).
Scott Brown, Senior Vice President, Marketing, iWatt
The SSL (solid-state lighting) industry is in a state of excitement mixed with trepidation.
With the obvious need for lighting more efficient than traditional incandescents, key market drivers
Randy Skinner, Staff Product Marketing Engineer, Lattice Semiconductor
For some designs, reducing circuit-board power dissipation by 25% to 30% would just be a nice outcome. For other designs, it's an absolute necessity.
Designers of products using the latest high-performance
Dr Yashvant Jani, Principal Engineer, Systems Design Consumer & Industrial Business Unit, Renesas Electronics America & Graeme Clark, Product Marketing Engineer, Industrial Business Group, Renesas Electronics Europe
Motor control algorithms for efficient motors often employ vector and sensorless vector control involving complex transformations and control loops for speed and position. Industrial applications
Figure 1 : Measured efficiency of a high frequency 12 Vin to POL buck converter, including output filter losses, using low voltage GaN based power devices.
Michael A. Briere, ACOO Enterprises LLC, under contract with International Rectifier
There are relatively few opportunities in one's career to participate in the development of a truly revolutionary technology in a chosen field. The past 8 years have been such an opportunity
Matthew Tyler, Product Line Manager, ON Semiconductor Mats Sandvik, Applications Engineer, Stegia
Electric motors are continuing to evolve, as market requirements grow for more compact, higher performance solutions which exhibit greater resilience to the often harsh environmental settings in
For safety, accuracy and convenience, automation is providing improvements in everyday applications. Consider the precision and advantages of computer-assisted surgery or the array of automation
Frederik Dostal, Power Business Technical Manager Europe, Analog Devices
Many AC powered systems above a certain power consumption level require power factor correction (PFC).
This is demanded by either utility companies or by governments. PFC sits right at the
Figure 1: Example PLD, with 12 inputs, 8 product terms and 4 macrocells
PLDs can have hundreds of macrocells with up to 16 product terms driving each macrocell. The AND and OR gates within the product terms can be interconnected to form highly flexible custom logic functions. The macrocells are typically clocked, and their outputs can be fed back into the product term array. This allows state machines to be created.
In most microcontroller architectures, there is a smart' CPU surrounded by a set of relatively dumb' peripherals.
Peripherals have limited functions; converting data from one form to
Wouldn't it be nice to save 25% to 30%, or even more, in circuit board power dissipation in your next design? While for some designs such a savings would just be nice to have, for others it's
Graham Brown, Applications Engineer, Future Devices Technology International (FTDI)
Developed in the mid 1990s, USB has gone on to become the most widely used data interface on the planet. Its huge popularity has certain additional upshots which are also now being realised. Market
Andy Fewster, Engineering Manager, austriamicrosystems AG
Small, battery-powered medical analysis equipment presents a challenge to the power circuit designer.
In meeting this challenge an understanding of the way boost conversion is implemented
Bruce Haug Sr. Product Marketing Engineer, Power Products, Linear Technology Corporation
Any power system operating from the AC mains has an associated power factor defined as the way it draws current from the source. The power factor of an AC electric power system is defined as the ratio
Yet the ruggedness of the underlying technology makes the core designs attractive to a much wider audience, such as industrial users who need low-power supplies for DIN-rail and similar equipment.
At least two power reactors are needed for solar inverters: one in the boost converter (step-up chopper) and one at the ouput of the inverter for EMC filtering. Besides the IGBTs, the losses in the reactors are a major determining factor of the overall efficiency of the inverter
Reported by Cliff Keys, Editorial Director & Editor-in-Chief, Power Systems Design
Low-loss and high saturation flux density core materials in reactors and transformers are a key determining factor for the efficiency of inverters.
The new TDK PE90 ferrite is a cutting-edge
Louis Pinkham, Vice President and General Manager, Critical Power Solutions, Eaton Corporation
NetRiver, the leading provider of collocation and interconnection services in the state of Washington, has been making data center managers green with envy racking up hefty utility rebates, generating
Reported by Cliff Keys, Editorial Director & Editor-in-Chief, Power Systems Design
This article describes a unique spacer cable system designed to power an industrial renewable energy plant pipeline.
When the L'Anse Warden Electric Company in Michigan's Upper Peninsula
Bruce Haug, Senior Product Marketing Engineer, Power Products, Linear Technology Corporation
The data centers' incremental overhead power consumption, due to inefficiencies and cooling systems is estimated to be equal to the amount of power that is consumed by servers, storage and networking.
The
Figure 1: Example PLD, with 12 inputs, 8 product terms and 4 macrocells
PLDs can have hundreds of macrocells with up to 16 product terms driving each macrocell. The AND and OR gates within the product terms can be interconnected to form highly flexible custom logic functions. The macrocells are typically clocked, and their outputs can be fed back into the product term array. This allows state machines to be created.
Mark Ainsworth, Principal Applications Engineer, Cypress Semiconductor
In most microcontroller architectures, there is a smart' CPU surrounded by a set of relatively dumb' peripherals.
Peripherals have limited functions; converting data from one form to
Figure 1: With the new XMC4000 family - starting with the XMC4500 series - Infineon addresses three high-level trends for microcontrollers in industrial applications: higher energy efficiency, enhanced connectivity and reduced software complexity
Infineon has taken their wealth of know-how in microcontroller design for real-time critical control applications to combine it with all benefits of an industry standard core.
The unique
Alfred Hesener Marketing Director - Europe Fairchild Semiconductor
Power electronics subsystems are often divided in a control and a power circuit, where the power output stage components strongly determine the characteristics of the whole application, like efficiency,
Harold Tisbe, Technical Marketing Engineer, Avago Technologies
Isolation components such as optocouplers that are used in applications that have user safety issues as a key aspect must not fail under continuous high-working-voltage bias conditions.
Safety
Peyman Asadi and Parviz Parto International Rectifier
Fast and reliable design and evaluation of Point of Load (POL) circuits is a major factor to reduce the product development cost and time for electronics industry.
Switching power supply
Kieran McDonald, Staff Field Applications and Systems Engineer, ON Semiconductor
In the age of connectivity, increasingly demanding consumer expectations are driving the evolution of in-vehicle infotainment, resulting in greater demands on the infotainment system power supply.
An inventor caught up in the thrill of developing a new product, or an engineer trying to source parts from other companies to complete his new design, may understandably not have legal matters
Laurence McGarry, Power Conversion Marketing Manager and Ken Marasco, System Applications Manager, Analog Devices, Inc.
Compared to traditional analog PWM controllers, Digital power controllers provide an extremely high level of flexibility and programmability over the serial interface bus.
The designer
Neil Symonds, Principal Engineer, Power Systems & Patrick O'Shaughnessy General Manager Power Systems, Excelitas Technologies Corp.
As a designer and manufacturer of critical power systems used in airborne, shipboard and ground-based applications in the defense and commercial markets, Excelitas Technologies recognizes the
Randy Skinner, Staff Product Marketing Engineer, In-system programmable mixed signal products, Lattice Semiconductor Corp.
Wouldn't it be nice to save 25% to 30%, or even more, in circuit board power dissipation in your next design?
While for some designs such a savings would just be nice to have, for
Many applications in power management are based on buck topology. The purpose of this application note is to describe a technique to overcome the current limitation of these solutions.
The
Arne Martin Holberg, AVR Project Manager & Andreas Eieland, Product Marketing Manager, Atmel
Although power consumption is the product of operating voltage (Vcc) multiplied by the current consumption (Icc), current consumption is usually the only parameter considered when describing the power
The megatrends in consumer drive systems are unbroken: The numbers of units are growing and so are the number of comfort features and quality requirements for the drive.
With Infineon's
Mike Matthews, Director of Strategic Marketing, Power Integrations, Inc.
Recent studies have indicated that standby power consumption can range as high as 10 percent of all domestic electricity usage.
Over the last few years, multiple programs - including
Neal Schultz, Senior Applications Engineer, TE Circuit Protection
Increasing demand for clean electrical power has led to a focus on renewable energy sources such as solar power.
Solar power systems are independent power generation systems meant to power
A new solar carport transforms the parking space into a provider
of green power that should delight designers and owners of electric cars alike.
Fitted with innovative lightweight solar
Martin Arnold, Tobias Wikström, Thomas Stiasny, Munaf Rahimo and Thomas Clausen, ABB Switzerland Ltd Semiconductors
A 4.5 kV IGCT (Integrated Gate Commutated Thyristor) with extraordinary high Safe Operating Area (SOA) at 140°C is presented. The improvements for the IGCT were achieved by optimizing the corrugated
Raymond Boyle, Principal Consultant, Wind Energy, NEL
NEL is a world-class provider of technical consultancy, research, testing, flow measurement and programme management services to the energy, oil & gas manufacturing industries and government.
The
At least two power reactors are needed for solar inverters: one in the boost converter (step-up chopper) and one at the ouput of the inverter for EMC filtering. Besides the IGBTs, the losses in the reactors are a major determining factor of the overall efficiency of the inverter
Reported by Cliff Keys, Editorial Director & Editor-in-Chief, Power Systems Design
Low-loss and high saturation flux density core materials in reactors and transformers are a key determining factor for the efficiency of inverters.
The new TDK PE90 ferrite is a cutting-edge
Michele Sclocchi National Semiconductor by Texas Instruments, Martin Williams, Bitron Industrie
Photovoltaic cell technology over the last few years has reached levels of cost and efficiency that enable its use in new markets.
Due to the varying sunlight conditions, energy storage
Petre Minciunescu, Systems engineer, Energy Metering Group & Brian Kennedy, Applications engineer Isolation Group, Analog Devices
DC tolerant current transformers have long been used to sense ac currents in smart energy meters, but they have drawbacks and can be expensive.
For some applications, resistive shunts make
Willie Chan?, Sr. Product Marketing Engineer?, μModule Power Products, Linear Technology
The influence of clouds, trees, dirt, on the solar cell panel and the rotation of the sun causes problematic fluctuations in the amount power generation.
The typical output current and
Patrick Baginski, Field Application Engineer, Vincotech GmbH
The mounting option for power modules has always been somewhat limited, meaning that the designer is constrained to a standard configuration. These new modules overcome this problem.
Most
Mark Porter, Technical Development Manager, Murata Power Systems Fleet, UK
Ceramic technologies are complementing semiconductor advances in enabling ever-more sophisticated and smaller wireless electronic systems.
Improvements in ceramic materials technology have
Alfred Hesener Marketing Director - Europe Fairchild Semiconductor
With 7 billion human beings living on this planet, and at the same time, the energy consumed by human beings is shifting more and more from oil to electricity Improving power density
Odd Jostein Svendali, Field Application Engineer, Atmel, Norway
Lithium Ion batteries are becoming the technology of choice for most portable applications requiring rechargeable batteries. The advantages include high energy density per volume and weight, high
This article discusses the selection process for deciding the battery charging topology in portable, consumer applications. The article analyzes system and battery conditions under which the benefits
Andrew Skinner, Chief Technology Officer, TDK-Lambda UK
Power supplies with digital control are gaining in popularity. However the term digital control' is commonly applied to two quite different meanings.
The two main terms are; Digital power
Chris M. Young Senior Manager, Digital Power Technology, Intersil Corporation
Stability is a critical operational requirement for power supplies. In regulated power supplies, the stability is controlled, by a large part, by the characteristics of the feedback path.
Randy Skinner, Staff Product Marketing Engineer, Lattice Semiconductor
Modern microprocessors, FPGAs and other complex ICs require accurate power supply voltages, often more accurate, in fact, than the tolerances provided by commodity low-dropout regulators (LDOs)
John Constantopoulos, Systems Engineer, WW Low Power DC-DC, Texas Instruments
With USB being a standard interface in PC peripherals, the number of applications that can be powered from a USB port is increasing at an exponential rate. The need for flexibility and continuous
These days, people can't live without cell phones. This is not a monumental revelation to anyone who has been at an airport, a shopping mall, or a park watching their children play. We close business
Tero Ranta and Rodd Novak, Peregrine Semiconductor
Thinner form factors, mobile TV and the requirement for power efficiency are placing extreme demands on the antenna, requiring a new approach to keep calls on track and antennas inside the handset.
Footprints
Peter A. Khairolomour, Technical Marketing Manager, Fairchild Semiconductor
The handset world is seeing a burgeoning need for memory storage. This article discusses memory trends and different methods of powering SD Flash memory.
The need for memory is being driven
Colin Faulkner, Product Manager Low Power RF Solutions, NXP Semiconductors
All households and businesses are under pressure to fulfil the twin ideals of reduced energy consumption and reduced costs. There have been many advances in building technology such as double
Real-Time Auto-Compensation Technique Enables More Versatile and More Efficient Power Systems while Reducing Design Overhead
Experienced power supply design engineers know that specific power requirement
Patrick Le Févre, Marketing and Communications Director,Ericsson Power Modules
Digitally controlled power converters that embody power management subsystems and PMBus communications in telecoms applications makes it easy to assemble sophisticated hardware that suits a variety
Heath Stewart, Senior Design Engineer, Linear Technology Corporation
Power over Ethernet, or PoE, is an increasingly popular way to deliver both power and data over existing Ethernet cable, thus freeing applications from the constraint of AC-power proximity.
As
Matt Henley, Technical Services Manager, Uninterruptible Power Supplies Limited a Kohler company
Choosing a UPS of the right capacity for a commercial or industrial application may appear as a simple task.
In reality however, making the correct choice depends on knowledge and understanding
Allen Chien, PhD Product Marketing Manager, Avago Technologies
Applications for portable wireless data communications have been booming in the last few years. For designers, these applications pose the challenge of designing multiple high-efficiency, low-noise
Energy management techniques have emerged as competitive and differentiating features of electronic equipment. Traditional DC-DC Integrated Circuit (IC) point solutions have focused on optimizing
Maurizio Salato Applications Engineering V·I Chip Inc., a VICOR Company
Telecom Central Office Datacenters have seen rapid evolution in terms of the architecture of their power supply arrangements; a number of different approaches have been used in relatively quick succession and, indeed, more than one approach may be found within a single installation
This article considers a number
?Willie Chan?Sr., Product Marketing Engineer?, μModule Power Products, Linear Technology
The influence of clouds, trees, dirt, on the solar cell panel and the rotation of the sun causes problematic fluctuations in the amount power generation.
Consistent with the movement towards
In a two-year study involving customer projects around the world, POWERVAR, a power management systems company, examined how power quality technology can significantly reduce the service burden
The internationally accepted IEC 60601-1 standard has been continuously developed to help alleviate safety issues relating to all manner of medical equipment.
Engineers need to be aware
The vital selection process required for choosing the most suitable supplier for a medical power supply and to achieve requirements for EN60601 specifications
Power supplies are a critical
Richard F. Zarr, MTS Technologist, National Semiconductor Corporation by Texas Instruments
As medical instrumentation acquires increased processing power, the amount of information that is gathered from a patient is growing exponentially.
Whenever large amounts of data are presented
Jeff Marvin, Design Center Manager, Mixed Signal Products, Linear Technology Corp
An important consideration when designing medical products is satisfying the IEC 60601-1 safety standard and the isolation ratings for products that come into contact with patients.
One
Tom O'Dwyer, Healthcare Team Technology Director, Analog Devices
In the world of medical devices, smaller is more beautiful. The market has seen a plethora of product announcements that herald a new era in size and portability.
While research teams
Bruce Klimpke, Technical Director, Integrated Engineering Software
Using modelling software in this current economic market speeds up delivery time by increased accuracy at an early stage in the design process.
The majority of engineering designers today
Roman Klinger, Product Marketing Manager - Industrial Applications, Business Cores and Components & Dr. Johannes Beichler, Developer Inductive Components Business Cores and Components
In recent years, innovative soft magnetic materials have moved to the forefront of electrical engineering and electronics and led to the development of many advanced components.
Today, VACUUMSCHMELZE
For industrial applications, power supplies with galvanic isolation in the range of 10 to 20W are often required. In general, a flyback converter is a good choice for this application.
But
Sajol Ghoshal, Business Unit Manager for Advanced Platform Texas Advanced Optoelectronic Solutions (TAOS)
Over 20% of the energy consumed in the US is in lighting; in fact, next to heating and air conditioning systems, lighting systems account for the greatest energy.
Today, adequate daylight
Jos van der Loop, Product Marketing Manager, Low Energy & VoIP Division, Dialog Semiconductor
A new generation of low power, self-configuring network devices capable of remote management via a web connected smartphone or tablet PC are set to deliver the next healthcare revolution.
The cost of providing healthcare to those recovering from illness or surgery has risen rapidly in recent years and there
A Brief History
I have been working with frequency response analyzers for over 30 years. My first introduction was when working on switching power supplies during my undergraduate degree at
Reported by Cliff Keys, Editorial Director, Editor-in-Chief, Power Systems Design
Transformers serve as a hub for collection and distribution of energy changing the voltage level at different locations of the Grid. They are a key component of the Smart Grid.
These components
The growth of the mobile Internet has been more dramatic than any pundit could have imagined. Fueled by the iPhone and other smartphones, enthusiastic mobile Internet users have turned to email,
Steve Norman, Smart Energy Marketing Manager, Industrial Business Group, Renesas Electronics Europe
We have often seen reported the potential for data theft, either on an individual basis, or on a larger scale. The question is how to lessen the risk of the worst happening in smart grid metering.
The
Kelvin Hagebeuk, Yokogawa Europe BV, The Netherlands
PV is becoming pervasive, but there are vital safety considerations that need to be adhered to - and tested thoroughly
Introduction to islanding
Islanding of photovoltaic systems
Supercapacitors, or Electrochemical Double Layer Capacitors (EDLCs), were invented in the 1960's and introduced for use in back-up applications by NEC in 1979 for clocks in VCRs, radios and microwave
Tom Ribarich International Rectifier Lighting Systems and Applications
Legislation mandating adoption of energy-saving lighting, such as the EU Lighting Directive, can help governments meet CO2 reduction obligations while also helping reduce end users' utility bills.
As
Figure 1: Scheme for PLC technology. In a TLACS system from Nyx Hemera Technologies a local controller integrates PLC to communicate with the network controller over the AC line and controls each lamp using a standard DALI interface
Scot Robertson Executive Business Manager Maxim Integrated Products
Street lighting in its many forms - roadway lighting, tunnel lighting, car park lighting and urban lighting - is a major consumer of grid electricity.
All outdoor lighting is, in fact,
Franck Ageron, Product Manager, Surge Protective Devices, Mersen Group
Future energy challenges are due to the depletion of fossil fuel reserves and urgent climate concerns. The new Power Grid will rely heavily on PV installations and their safety
The photovoltaic
Klaus Schweizer, Field Applications Engineer, Atmel
There are many applications today where the prevailing brushed DC motors continue to represent high demand on the power grid.
In most cases, these durable motors, based on proven technology,
The Smart Grid will bring massive changes to the way energy is delivered to homes. If the intent is to make everyone aware of and responsible for their personal energy usage, the Smart Grid is
Bertrand Klaiber, Business Development Manager for Energy Solutions, LEM
Today, as never before, the subject of energy efficiency is on everyone's agenda, at personal, corporate and national levels.
It is no surprise, therefore, that there is scope in many manufacturing
Johan Strydom, PhD Vice President, Applications, Efficient Power Conversion Corporation
In the competitive world of notebook computers, the key performance attributes are battery life, weight, and size (particularly height) for a given level of performance.
Recent advances
Frederik Dostal, Power Business Technical Manager, Analog Devices
Switch mode power supplies convert one voltage to another. Such supplies are generally very efficient and thus replace linear regulators in many applications.
Switching frequency versus
Choosing an op amp for high end sensor input projects can be especially challenging if the sensors or their design environments require ultra low-power, low-noise, zero-drift, rail-to-rail input
Don Alfano, Director of Power Products, Silicon Labs
The modern power grid will feature photovoltaic (PV) power systems that offer a sustainable alternative to fossil-fueled power plants.
PV power systems consist of multiple components such
Bruce Haug, Sr. Product Marketing Engineer, Power Products, Linear Technology
Even before the heightened awareness brought on by threats of terrorism, many public and private institutions had already began to incorporate video security into critical infrastructure.
Video
Energy efficiency with advanced magnetic alloys - the quality of smart grids starts with the quality of their materials The famous English social reformer John Ruskin (1849 - 1900) was
When looking into either adding solar installation to your business, or want to know how to get the best deals, there are several factors to consider.
Reliability is key; investigate the
Dr. Jae Inh Song, Executive VP, Sales/Marketing, Dongbu HiTe,k Korea
Automotive electronics has emerged as one of the most important applications for integrated circuits. The expanded use of automotive electronics and concomitant semiconductor content per vehicle
Paul Lee, Director of Engineering, Murata Power Solutions
International regulations regarding electromagnetic compatibility (EMC) affect many aspects of circuit and system design. However, there are numerous techniques that can be applied to reduce both
Thorsten Gerke, Business Development Manager, Saber product line Synopsys Inc & Kurt Mueller, Business Development and Consulting Services Manager, Saber product line Synopsys Inc
Electrification is driving the need for comprehensive multi-domain system simulation in hybrid-electric and electric vehicles. A vehicle's power electronic components, coupled with the overall
Jeff Wilson, Senior Staff Engineer, STMicroelectronics
Global Navigation Satellite System (GNSS) is the general term for satellite tracking systems and covers GPS, Galileo, GLONASS, QZSS and Compass constellations.
Systems for urban canyon applications
Benjamin Jackson, Manager Automotive Power Switch, Product Management & Business Development, International Rectifier
The 2011 automotive year started with the Detroit Auto show where the new Chrysler 300 was launched, its headline, a 3.6l V6 engine delivering a whopping 292 hp (218 kW), 41 hp (31 kW) more than
Herbert Hopfgartner and Stefan Stoegner, Application Engineers, Infineon Technologies
One of the latest automotive design trends is LED lighting. LEDs (Light Emitting Diodes) are used for tail lights, interior lights such as ambient lighting, and LED front lights.
Front light
Evangelista Boni, Davide Montanari, Luca Caliari, Kemet Electronics Italy John Bultitude, Reggie Phillips, Mark Laps, Bill Sloka, William Buchanan, KEMET Electronics Corporation
High Intensity Discharge (HID) headlamps are superior replacements for conventional heated-filament headlamps that require about 25kV applied to the lamp electrodes to ionize the Xenon gas and
Dipl.-Ing.(FH) Harry Störzer Manager Application and Support IPETRONIK GmbH & Co.KG
Recent industry trends toward high-performance electric and hybrid vehicle (EHV) drives has created a whole new set of testing requirements.
New Drive Technologies, New Safety Requirements
New
Stephan Gerlach, Senior Applications Engineer, Atmel, Heilbronn, Germany
System-level tests for EMC pulse immunity have been established in order to test the immunity of an electronic device or module against strong electromagnetic fields such as a close AM or FM transmitter
Jun Liu and Zaki Moussaoui, Intersil Corporation, Milpitas, CA
A main challenge for an automotive power system designer is to deal with the 12V car battery voltage fluctuations. The battery voltage can drop significantly during load crank.
This voltage
Bruce Haug, Sr. Product Marketing Engineer, Power Products, Linear Technology
Many automotive manufactures have devised a clever way of saving fuel in automobiles by using a new concept called a "Start/Stop" system. This system automatically switches off the engine when
Jim LeClare, Principal Member of Technical Staff and Scot Robertson Executive Business Manager for Powerline Products, Maxim Integrated Products
Electric vehicles (EVs) and plug-in hybrid electric vehicles (PHEVs) are building a viable market of mobile electrical energy consumers. New relationships between electricity providers (the utility
Steve Knoth, Senior Product Marketing Engineer, Power Products Group, Linear Technology Corporation
Energy harvesting ICs can convert an appropriate transducer's output into an electric current for a battery charger device. Recent technology developments have pushed energy harvesting to the point
Leslie Bane, Senior Ecosystem Strategy Manager, National Semiconductor
To succeed in today's competitive solar market, system designers and OEMs require a system solution which may include energy-efficient analog ICs, tools, evaluation boards, and reference designs.
As
Rob Dixon, Senior Reliability Engineer, Azuray Technologies
Solar industry insiders have declared this "The Year for Power Optimization." Distributed electronics like maximum power point tracking (MPPT) power optimizers and microinverters are growing in
In the utilization of solar panels, maximum power point tracking (MPPT) is the automatic adjustment of electrical load to achieve the greatest possible power harvest, during dynamic variations
The need for forced-air cooling should be assessed at an early stage in system electronics enclosure design. The full range of implications needs to be considered in detail for a successful outcome.
Typical
Ulla Pettersson Director at e for energy, Member of the advisory board for POWER-GEN Europe 2011
Smart grid strategies have still to be finalized as countries strive to lower their greenhouse gas emissions, increase energy efficiency and ensure security of supply.
A growing number of
Figure 1: By using software from ANSYS to predict maximum temperatures and temperature distribution within its new diesel particulate filter under diverse conditions, Cummins engineers can ensure that the manufactured component will have acceptable durability.
Bob Tickel, Director of Structural and Dynamic Analysis, Cummins Inc. Columbus, Ohio, U.S.A.
Cummins uses simulation software from ANSYS to reduce weight, improve fuel economy and reduce environmentally harmful emissions of engines
The phrase "environmentally responsible" doesn't
Ruggedized, Fast/Gigabit Ethernet rack-mount switches, such as this Hirschmann MACH1000, offer high port density and hundreds of copper/fiber media-mix options, excellent RFI/EMI shielding, and high performance - even in the harshest industrial environments and applications
Mike Miclot, Vice President of Marketing, Belden Industrial Solutions Division Inc.
Today's power grid receives energy from conventional, independent and alternative power source producers and distributes that power to industrial, commercial and residential customers. Providers
Jerry Douglas, Engineering Practice Leader - Renewable and Alternate Energy Eldred Clark, Engineering Manager ACE European Group
Recognising, defining and dealing with renewable energy risks have never been more of a priority. Projects tend to be complex, innovative and often pioneering, which is why it pays to have insurance
Th. Schütze & H.P. Felsl, J. Biermann, Infineon Technologies, Warstein and Munich, Germany
A new technology for the vertical architecture of free wheeling diodes is introduced, which is optimized for applications with high switching frequencies. To minimize the turn off losses of the
Figure 1: The challenge of dynamic performance vs. current consumption has been addressed by introducing parts that are switchable between low power mode and high performance. A typical example is ON Semiconductor's NCP4587.
Looking at products that are currently sampling, it appears that products with noise in the 10 ?VRMS range and Quiescent current in the 10-15 μA range will be in production by the end of this year, giving cell phone designers the best of both worlds in selecting their LDOs.
Eamonn Ahearne, Market Development Manager Regulation BU, ON Semiconductor
Low drop-out Linear voltage regulators are a vital component in a wide range of applications; perhaps some of the most demanding conditions exist in the portable equipment (media players, digital
Pat Cassady, President, DynamicSignals, Lockport, IL USA
By definition, the off-the-shelf modular instruments (VME, PXI, VXI, CompactPCI, PCI, etc.) used to create automated test and measurement systems are designed to be general purpose, programmable,
Bruce Haug, Sr. Product Marketing Engineer, Power Products, Linear Technology
Even before heightened awareness brought on by threats of terrorism, many public and private institutions had already began incorporating video security into critical infrastructure.
Video
Available in serial or parallel wiring options, the new Molex array holder simplifies LED installation. Array holder is shown with and without optional Ingress Protection
Dan McGowan, Engineering Manager, Molex Incorporated
Here follows an in-depth look into just how synergistic electronics, optical and lighting industries are yielding new and award-winning technologies to revolutionize the world of LED luminaires.
LEDs
LEDs are fast replacing Fluorescent light bulbs and incandescent light bulbs in many lighting applications. In the past these sources could be driven directly from the mains voltage, but this is
Fare collection and ticketing systems are an essential part of any public transport network. Systems combine software and hardware elements such as onboard computers and driver interfaces for automated
Jeff Gruetter, Sr. Product Marketing Engineer, Power Products, Linear Technology
Most of the new LED lighting fixture applications will be required to run from existing AC offline power sources, generally 90VAC to 265VAC depending on the end application's geography. The ability
Peter B. Green, LED Group, International Rectifier
High brightness LED street lights are now being installed in pilot projects at many sites. In most cases these are replacing high intensity discharge (HID) and high pressure sodium (HPS) street
Dave Ritter, Senior Designer and Tamara Schmitz, Ph.D., Senior Principal Applications Engineer, Intersil Corporation
Transmission cables have improved, but the challenge is always the same: get more messages down longer cables faster. It may sound simple, but the longer the cable, the greater the losses. These
Patrick Le Fèvre, Marketing and Communications Director, Ericsson Power Modules
Digital power conversion has moved on from being a novelty to widespread acceptance. Ericsson launched its BMR453 quarter-brick intermediate-bus converter in 2008 and followed with an eighth-brick
Don Zaremba, Applications Engineer, MOSFET Business Unit, ON Semiconductor
There is a pressing need within the automotive industry for realizing greater degrees of fuel economy. This is being driven by rising oil prices through ongoing political uncertainty in many oil
Martin Knecht, Roman Tschirbs & Roland Ott, Infineon Technologies AG
Power module development is striving for higher power densities, not only in new but also in already established packages. Two main challenges for such kinds of upgrades are to meet the increased
Ann-Marie Bayliss, Product Marketing Manager, Murata Power Solutions
With their ability to drastically simplify provision of low-power isolated power rails that are commonly required in applications such as process control and industrial communications interfaces,
Cary Chin, Director of Technical Marketing, Synopsys
Power has always been an integral part of consumer electronics, but increasingly we can do more things with a single device. That trend, above all others, has moved power consumption from an afterthought
Mark Steinmetz, Field Applications Engineer, Vincotech GmbH
The Intelligent Power Module, IPM, has been a mainstay in motor speed control designs. And with good reason: Such designs are relatively easy and cheap to implement. With onboard gate drivers,
Graeme Clark, Product marketing Specialist, Industrial Business Group, Renesas Electronics Europe
The demands being placed on designers for the next generation of domestic appliances are increasing drastically. Today we see many conflicting demands to use less power, less water and to create
Randy Skinner, Staff Product Marketing Engineer In-system programmable mixed signal products Lattice Semiconductor
Modern appliances and equipment which utilize microprocessors, FPGAs and other complex ICs require accurate power supply voltages, often more accurate, in fact, than the tolerances provided by
Bob Callanan, Applications Manager SiC Power Products Cree
Silicon carbide (SiC) is a compound semiconductor that is superior to silicon (Si) in several respects. These advantages stem from SiC's ~10x higher critical breakdown field, ~2.8x higher thermal
HMI designs in embedded systems are evolving fast as the cost of manufacturing fashionable and more elegant interfaces continues to decrease. Some appliances are already combining touch-sensitive
Barry Brents & Matt Williams TE - Circuit Protection
The power supplies, relays and other electronic components found in household and professional-grade appliances can benefit from the application of resettable overcurrent protection.
Polymeric
The rising cost of electricity will increase the consumer demand for home appliances that offer energy savings. However, this is only one consideration that consumers must consider when purchasing
Dr. Florian Schwager, Product Manager, Solar Barrier Films, Performance Polymers, Evonik
Thin-film solar cells are developing into a rapidly growing market segment. If their commercial potential is to be fully exploited, the solar modules must be produced in a roll-to-roll manufacturing
Curt Collins, Director of Sales, Pacific Crest Transformers Medford, Oregon
The grounding transformer is an often neglected component of the wind farm - shunted off to a sidebar issue. However, those who neglect to adequately plan for grounding transformers do so at their
Figure 1: I-V characteristics of 10ms half sine pulses at different peak currents. Curve (c) is slightly above, curve (d) is far above the destruction threshold.
Thomas Hunger, Oliver Schilling, Frank Wolter, Thomas Schütze Infineon Technologies AG Warstein, Germany
The ability of silicon power diodes to withstand a rapid forward current load, described by its i2t-value, is an important criterion that has to be regarded in the selection of the proper devices
Ted Worroll, Product Manager, ITT Interconnect Solutions
This advanced charging in electric vehicles (EV) requires highly efficient power contacts to provide flexible functionality, with minimal modifications, across a power range from a low of 15 amps/120
Dan Tooth PhD, Field Applications Engineer, Texas Instruments
An engineer designing with FPGAs or Processors often has to provide some serious amount of power at high efficiency over load. Not only must the rails be regulated correctly and not overheat, but additional functionality may be required.
Recent evaluation boards from Xilinx (ML605 and SP605) for Virtex-6 and Spart
Yingying Wang, NXP Semiconductor,s Nijmegen, The Netherlands
The current market of Switch Mode Power Supply IC's shows increasing demand on efficient and cost effective solutions that enable slim and compact design. The industry standard Energy Star Version
Frank Kern, PE, staff field applications engineer CHiL Semiconductor
Modern power systems feature high speed serial communication between load and voltage regulators (VR) to enable sophisticated power management operations. This communication is susceptible to
David New, Product Marketing Manager for computing applications Power Integrations, Inc., San Jose, California. US
Power supplies of up to1kW output power account for the majority of power supplies used in high-volume electronics applications. One obvious application that we use every day is the personal computer,
The growing demand for electronics that can operate in harsh environments such as under-hood automotive systems and rugged industrial applications is fueling a trend toward new materials and more
Reducing the size and improving the efficiency of AC-DC power supplies are constant pressures. In addition, the requirement for portability in some equipment means that not only the size but also
Andrew Skinner, Chief Technology Officer, TDK-Lambda, UK
Flexibility is one of the major advantages of power supplies using digital power conversion, where customer specific optimisations can be achieved without the expense of changing the hardware.
Len Crane, Technical Marketing Director, Coilcraft, Cary, IL, USA
Optimizing a power converter means making the right inductor choice. Choosing an inductor is a fairly simple proposition, with relatively few parameters to consider. Yet a solid understanding of
Thomas Kimmer, Application Engineering IGBT, and Mark Thomas, Product Marketing Manager IGBT Infineon Technologies
The demand for energy in our world is increasing dramatically. A large portion of this demand comes from air-conditioning systems that are running over all the different climate zones. Energy saving
David Renton, Global Managing Director, UPSL, Berkshire, UK
With a recent survey reporting power outages as a common experience, and most users expecting the situation to worsen, UPS systems are now essential for business critical ICT equipment.
The
Figure 2: Measured data for the Ericsson BMR450 20-Amp power module when varying input voltage from 4.5 to 14 volts and with load from zero to 20 Amps.
Patrick Le Fèvre, Marketing and Communications Director, Ericsson Power Modules
This case study presents the results of Ericsson's findings of using a novel algorithm to optimize intermediate bus voltage. This approach saves significant energy and cost, while increasing reliability.
The
High Speed ADCs are integral to low power applications such as wireless communication, medical instrumentation and data acquisition systems. Speed requirements of the ADCs vary from a few kHz to
Steve Knoth, Senior Product Marketing Engineer, Power Products Group, Linear Technology Corporation
Shunt voltage references are simple to use; they have been around for many years and are in a myriad of products. However, they cannot effectively charge a battery, and to configure one to do such
Joe Lomako, Telecoms & Radio Business Development Manager, TRaC
TRaC is a test and certification company, providing comprehensive services with global reach through its worldwide partnerships. The organisation provides a streamlined approval process to meet
Brice Le Gouic, Yole Développement Market and Technology Analysis Power Electronics and Related Applicative Markets
Yole Développement announces its comprehensive analysis on the first standardization steps in the PV inverter industry. Yole Développement's analysts evaluate the market forecasts and positioning
PhD. Salvador Segui Chilet and Victoria Devesa (Universidad Politécnica de Valencia) Velencia, Spain
A 3.3kWpk photovoltaic installation consisting of 64 amorphous silicon modules was connected to the power grid of the Universidad Politécnica de Valencia (UPV).
The plant is located on
Werner Obermaier, Head of Product Marketing, Vincotech GmbH, Germany
The increasing requirement in renewable energy systems and motor drive applications for ever-higher power levels is, as a consequence, driving the demand for power modules to provide higher levels
Alberto Guerra, International Rectifier El Segundo, California, US
The global economic recession of the last two years has had a profound impact on world energy demand, at least in the near term. As manufacturing and consumer demand for goods and services declined
Cuijiao Ma, and Song Gaosheng, Mitsubishi Electric & Electronics (Shanghai) Co., Ltd. China; Haitao Xiang and Haijiang Jiang, Shanghai Aero-Sharp Electric Technologies Co., Ltd. China
This article describes a dual input two stage grid-tied PV inverter by using Mitsubishi Photovoltaic Intelligent Power Modules (PV-IPM) of type number PM50B6LA060. Dual circuit branches have independent
By David Connett, Director IC Reference Design, EPCOS AG, Germany
The accuracy of the wafer coupled with assembly processes already commonly found in the manufacturing plants of IGBT modules, makes the chip form of NTC the ideal component for embedding into power
Ty Bowman, Global Battery Market Manager, Circuit Protection Business Unit, Tyco Electronics
Technological advances in lithium ion (Li-ion) batteries have enabled high-power Li-ion cells with higher energy density and lighter weight to replace Nickel-Cadmium (NiCd) batteries - and even
By Peter Haaf, Technical Marketing Manager Fairchild Semiconductor GmbH Fuerstenfeldbruck, Germany
Solar electricity generation is becoming a viable alternative energy source, due to burgeoning energy costs. Up until 2007, the German solar market was the world’s largest solar market driven by a law encouraging the use of renewable energy through incentives (the “Energieeinspeisungsgesetz”).
Generating electrici
By Dave Koester, Vice President of Engineering, Nextreme Thermal Solutions
Advances in distributed sensors and sensor networks have led to an increased interest in renewable and autonomous power sources. The use of waste heat is an attractive source of energy for many
By Werner Obermaier, Head of Product Marketing, Vincotech GmbH
In a world where energy efficiency is king, engineers, managers and purchasing departments alike need to examine carefully the route their company takes in the development of new products. It is
Eric Marcelot, Marketing Manager, High Rel Semiconductor Solutions, e2v
It is estimated that 3% of the global pool of electronic components is made obsolete each month, and on a long term defence project, typically 50-70% of the semiconductor products incorporated
By Patrick Le Fï½vre, Marketing & Communication Director, Ericsson Power Modules
Since the origin of mobile communication, various techniques based on software and hardware have been implemented to optimize energy efficiency. In every telecommunication system there are DC/DC
By Graham Proud European Field Applications Engineer CamSemi
The universal drive to reduce power consumption that Energy Star and similar initiatives have so successfully promoted within consumer-level equipment is starting to take a real hold within industrial
By John Stephens, Technical Project Manager, European System Design Centre, Future Electronics
With demand for high efficiency becoming part of product specification across the whole load range, design engineers are reviewing AC-DC power supply topologies with the specific aim of reducing power
Figure 1: Talk time analysis of a 3G PA with and without FAN5902 under WCDMA signal modulation and 1000mAh Li-Ion battery. The power distribution function is DG09 and can be found in GSMA's white paper "Battery Life Measurement Technique, v4.7".
By Wayne Seto, Technical Marketing Manager, Mobile Power Solutions, Fairchild Semiconductor
What is more annoying? Running out of battery or constantly needing to recharge it? With the proliferation of cellular mobile handsets, especially smartphones in the world today where people are
By Shyam Chandra, Product Marketing Manager, Lattice Semiconductor
The explosion in data traffic and the introduction of "Smart Phones" such as the Apple iPhone are fuelling the need for the rapid expansion of communications networks, not only at the Edge but
By Pietro Scalia, EMEA Power Marketing Manager for Telecom and Matthias Ulmann, EMEA Design Services Engineer, Texas Instruments, Germany
To reduce significant distribution losses due to high currents circulating on the Intermediate Bus in the Telecom/ Datacom distributed architecture, the value of this voltage (IBV) has been recently
By Matthew Williams, Global Applications Engineering Manager, Tyco Electronics, Circuit Protection Business Unit
Telecommunications equipment must be able to survive surges and power faults as defined in the relevant standards. Survivability can be achieved by providing protection either remotely or at the
By Ed Spears, Product Marketing Manager, Eaton Critical Power Solutions Division, Raleigh, North Carolina, US
Data center energy costs as a percent of total revenue are at an all-time high - emerging as the second largest operating cost in the IT organization, behind labor.
The five-year cost for
Reported by Cliff Keys, Editorial Director, Editor-in-Chief, Power Systems Design
On my recent trip to California, I had the opportunity to visit Sigma Designs Inc., a leading provider of system-on-chip (SoC) solutions used to deliver entertainment and control throughout the
By Christopher R. Swartz, Principal Applications Engineer, Picor Corporation
System designers have struggled to determine the type of distributed power system to best meet the needs of the system while still retaining high efficiency, reliability, low cost and most of all,
Reported by Cliff Keys, Editorial Director, Editor-in-Chief, Power Systems Design Magazine
At the company's press launch in Munich, Germany, Gordon Hands, Director of Strategic Marketing for Lattice's Low Density and Mixed Signal Solutions, presented Lattice's next-generation programmable
By Cochise Mapa, Director of Business Development, Embedded Power, Emerson Network Power
When companies are certified by international standards or qualified by a regulatory body, it signals to customers that these companies are dedicated to producing a quality product consistently
Safety is paramount wherever power supplies are used, but nowhere more so than in medical applications where even small parasitic leakage currents may compromise safety. First published in 1977,
Shadi Hawawini, Senior Applications Engineer; and George Paparrizos, Product Marketing Director, Summit Microelectronics
Technology advancements over the past few years have generated many new developments that have specifically benefitted the portable medical device market. The focus of such efforts has centered
Rick Murphy, as reported by Cliff Keys, Editor-in-Chief, Power Systems Design
Analog Devices products and technologies have made a significant contribution in healthcare designs - helping shape the future of diagnostics and monitoring equipment, as well as health and wellness
Suresh Ram, as reported by Cliff Keys, Editor-in-Chief, Power Systems Design
I had the great pleasure to talk with Suresh Ram, Director, Medical Key Market Segment at National Semiconductor Corporation. Suresh is responsible for driving the strategy and development of innovative
By Yasushi Nishinura, Liz Zheng and Jun Honda, International Rectifier, El Segundo, California
Whether it is automotive entertainment or home theater systems, consumers have been asking for more channels and speakers with the ability to handle higher audio power levels per channel. In addition
By John Di Cristina, Director of Strategic Marketing, Maxim Integrated Products Inc., Chelmsford, MA, USA
A stethoscope, whether acoustic or digital, is used mainly to listen to heart and lung sounds in the body as an aid to diagnosis. Listening, or auscultation, has been done with acoustic stethoscopes
Brian King, Applications Engineer, Texas Instruments Power Group and Member of the Group Technical Staff
Most isolated low-power AC/DC power supplies tend to use the flyback topology due to its simplicity and decent efficiency. Removing the isolation requirement allows other topologies to be used, such
Brian Huang, Applications Engineer, Micrel Inc., San Jose, California
In the next few years, the term "3G" will become the substandard mobile broadband connection as "4G" debuts across major US cellular network carriers. At a nominal data transfer rate of 100Mb/s,
Michael Adams, Global Vice President, Data & IT, at AEG Power Solutions
The need to protect IT equipment from the effects of power transients, as well as to provide assured operation during power outages is evidenced by the steady growth in sales of uninterruptible
Companies often install uninterruptible power supplies (UPS) to provide backup power if the main supply is lost. But power outage is relatively rare. Are we missing a trick by not looking at
Reported by Cliff Keys, Editor-in-Chief, Power Systems Design
For developers in a broad range of applications using the Intel Atom processor, particularly in portable designs such as found in the new wave of medical equipment, Dialog's companion chip is the
By Martin Gross, Global Head of Grid Systems Business, ABB
Advances in global long-haul, high-powered transmission technologies and capacity create an imperative for renewable generation in the U.S. and beyond.
It certainly is an interesting time in history to be involved with electricity. The power industry is on the verge of the biggest breakthroughs in genera
Silvio Baccari, Massimo Tipaldi, Francesco Vasca, Luigi Iannelli, University of Sannio, Benevento, Italy
Increasingly, with the development and refurbishment of Power Grid systems, more efficient street and public lighting systems are becoming ever higher on a government's agenda. Over the last years,
By Joseph Shtargot, Strategic Applications Engineer, Maxim Integrated Products Inc., Sunnyvale, California
Many advanced industrial applications use high-performance multichannel data acquisition systems (DASs) to manage real-time information from precision industrial sensors. These complex systems
Patrick LeFevre, Marketing Director, Ericsson Power Modules
With the International Energy Agency's first ever global survey of energy consumption for lighting estimating that around 19% of all electricity generated is used to keep mankind from the darknessthat's
Wibawa T.Chou, Senior Application Engineer, International Rectifier Corporation
In order to achieve higher efficiency in a grid tie inverter, the correct choice of power semiconductor devices becomes very important. For grid tie inverters, the bus voltage is in the order of
David Owen, Business Development Manager, Pickering Interfaces Ltd, Essex, United Kingdom
Pickering Interfaces is a UK-based company manufacturing advanced switching and instrumentation equipment for the electronics industry. The company's products are used worldwide in applications
Paul Lacey, Applications Engineer, Power Integrations, Inc.
AC-DC power supplies up to approximately 100W commonly utilize the flyback topology. Its low cost and ability to provide multiple tracking outputs with a single controller have made it a favorite
Power amplifier (PA) efficiency is a key factor in wireless system design. Due to the inherent nonlinearity of the PA, a large signal would be distorted and its spectrum would be broadened to disturb
The evolution from the traditional electrical grid to the new smart grid introduces many challenges. One of these main challenges is the need for a good communication network to receive information
Every day we can read and see on news statements like: "A series of agreements to collaborate on four smart grid projects signed.", "International Smart Grid Action Network launched.", "Beyond the
Wolfgang Frank, Heiko Rettinger, Infineon Technologies AG, Germany; Junbae Lee, Daewoong Chung, LS Power Semitech, Republic of Korea
All applications, which support the comfort in our daily life, are supposed to be invisible - or at least small, light weight, and silent. These applications are home appliances, such as vacuum cleaners,
Joshua Broline and Nattorn Pongratananukul, Intersil Corporation
Engineers and designers on product deadlines need all the time they can get to focus on what matters most - the core architecture of a system design. Designing with an FPGA, DSP, or microprocessor
Bill Hutchings, Product Marketing Manager, High Performance Microcontroller Division, Microchip Technology
Control of switch mode power supplies (SMPSs) has traditionally been carried out with purely analog circuitry. The advent of low-cost, high-performance digital signal controllers (DSCs) provides a
With the ever increasing number of Internal Combustion Engine (ICE) vehicles on the roads, the demand for fossil-fuels is rising steeply leading to increased CO2 emissions that are harmful to the
Jim Pennignton, Applications Manager, Autotest Company, San Antonio, Texas
Project managers within industries such as bio med, alternative energy, smart appliances, communications, consumer electronics and defense now increasingly look to custom designed and manufactured
Robert Regensburger, Senior Member of the Technical Staff, Applications, Maxim Integrated Products Inc., Munich, Germany
Charge pumps are often the best choice for powering a CAN-bus application that requires a combination of low-power, low-voltage operation and low cost. This article explains how to supply a high-speed CAN transceiver, via a charge pump, to achieve a 5V rail that is required for most transceivers to deliver ISO 11
Don Alfano, Director of Power Products, Silicon Laboratories Inc
For more than four decades, optocouplers have been the "default" signal isolation device, but CMOS-based digital isolation technology has made available smaller, faster and more reliable solutions
Patrick Sullivan, R&D Engineer, Isolation Products Division, Avago, Boeblingen, Germany
Its more than 10 years since the market introduction of Avago technologies first smart gate driver. At that time it was the world's first integrated IGBT gate driver optocoupler with inbuilt fault
Shaun Milano and Mike Doogue, Product Marketing, Allegro MicroSystems, Inc
Consumers are embracing environmentally friendly "green cars" as a result of the rising cost of fossil fuels and a growing concern for the health of the environment. Sales forecasts have predicted
In order to fulfil increasingly stringent requirements to improve fuel economy and to reduce emissions, the automotive industry is looking for innovative solutions. In the future, e-Mobility is expected
Benjamin Jackson, Product Manager, Automotive MOSFETs, International Rectifier
With the recent upsurge in hybrid vehicle adoption and almost all major car OEMs now working on full electric vehicle projects, people often point out that this is old news. In many respects they
Rechargeable battery packs prematurely deteriorate in performance if any cells are allowed to over-discharge, for example, in hybrid automobiles or lower-cost products like portable tools and backup
According to IMS Research the number of video capable automotive head units will grow from 8.5 Mu in 2006 to 26.6 Mu in 2015. In order to present the information to the driver with less distraction
Bart De Cock and Steven De Preter, ON Semiconductor, Belgium
In most automotive HVAC systems, a continuous inflow of fresh air is conditioned and brought into the cabin. Typically the driver can select whether the fresh air supply needs to be interrupted (recirculation)
James Aliberti, Product Marketing Engineer, Power Supply Controls, Texas Instruments
In many high-power lighting applications such as street lights, high-bay stadium lighting and others, the trend is moving towards solid state lighting that uses LEDs as the lighting source. The reason
Brice Le Gouic, Market and Technology analysis, Power Electronics and related markets, Yole Développement
Here follows a paper submitted by Yole Développement, a market research and strategy consulting company, specialised in the MEMS fields as well as compound semiconductors, power electronics and photovoltaic.
Thomas Sleasman and Birol Sonuparlak, Thermal Management Solutions, Rogers Corporation, Chandler, Arizona, U.S.
It has been forecast that by 2020 there will be upwards of 10 million passenger and light truck vehicles sold annually that are powered entirely or in part by electric motors. Starting with the leadership
Michael Bean, Global Product Manager, High Current Power, Molex Incorporated, Lisle, Illinois
Taming the heat is one of the biggest design challenges facing system architects and power supply manufactures today. Free air flow through the power supply is critical for improving performance
Jeff Marvin, Design Center Manager and Brian Jadus, Senior Design Engineer, Mixed Signal Products, Linear Technology Corporation
RS485 networks provide the backbone for communications in applications ranging from industrial control systems to roadside traffic message boards. In environments where high voltages are present,
Marc Buschkühle and Thilo Stolze, Infineon Technologies AG, Warstein, Germany
Customers of power electronics increasingly require new, easy connection and mounting technologies. PressFIT technology creates the possibility of solderless mounting combined with an improved
Steve Willis, Deputy UK Managing Director, XP Power
Despite the best intentions at the outset of an electronic product's design, it is commonplace for the power supply specification to evolve during the process and to only be finalized late on.
Kory Schroeder, Director of Marketing, Stackpole Electronics Inc
Over the past few years, several manufacturers have developed high-power handling general purpose chip resistors covering a wide resistance range. Most of these high-power chip resistors are extensions
Andreas Biss, New Business Development, Sharp Microelectronics Europe, Hamburg
A power-saving, environmentally friendly, long-life, compact and (above all) cost-effective light source - LEDs have created an entirely new generation of lamps.
According to the International
Len Crane, Director - Technical Marketing, Coilcraft
A wide variety of driver circuits is needed to support new LED applications and the demands for high performance are challenging designers to be as creative as possible with new circuit techniques.
Most modern power supplies are required to contain the harmonic content of the current they absorb from the line. Practically, regulations request the line current to be nearly sinusoidal and in
Faraz Hasan, Global Marketing & Business Development Manager, Appliance/Industrial/Lighting, Circuit Protection Business Unit, Tyco Electronics
As government agencies, industry and consumers look for ways to reduce energy costs, light-emitting diode (LED) lighting technology is expected to boom. LED technology has advanced rapidly, with
Modern wind turbines are being designed for a lifetime of 15-20 years. In the special case of wind power, the turbines are expected to run 24 hours a day, 365 days a year when the wind allows.
PV modules, or panels, produce direct current (DC) electricity, typically with a peak output up to 250 Watts. With suitable control circuits, they can be used to charge a battery - which also generates
J. LeRoy Ward, PMP, PgMP, Executive Vice President, Product Strategy & Management, ESI International
In the past two years of the recession, the power systems design industry has been in the very challenging position of fine-tuning solutions to address the ever-pressing issue of energy supply
Alan Luscombe, Sales and Marketing Director, Uninterruptible Power Supplies Ltd (UPSL)
A tailored and integrated approach to power protection, comprising modular UPS and fully-matched standby generators, is helping businesses sustain vital uptime and availability.
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