Technical Features
July 2012
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Silicon carbide (SiC) semiconductors improve energy efficiency and switching performance in electric vehicles. Until now, the cost-benefit ratio has been particularly favorable for high-performance premium models. But the balance is shifting. Improved power density and robustness are making SiC MOSFETs increa
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Date:
07/30/2026
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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.
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,
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Date:
07/25/2012
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Figure 1: Step-down converter efficiency used to power the main processor in a set top box
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
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Date:
07/24/2012
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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.
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
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Date:
07/20/2012
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Figure 1: Converter input power vs. line current with a symmetric conduction angle, constant current peak and resistive load.
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
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Date:
07/13/2012
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Figure 1: The activation steps of the MHP device
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,
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Date:
07/09/2012
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
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Date:
07/01/2012
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