Technical Features

December 2015
Integration is What You Need

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Figure 1. WBG and silicon power switch Infineon brands positioning

Introduction Today’s switch-mode power supplies (SMPS) are smaller, more efficient, and lower-cost than ever. The key to their performance is the power switch technologies at their heart – but how should designers choose the right material for this and find the best component to meet their needs? While silicon is the most widely-known constituent of semiconductors, a new group of wide bandgap (WBG) materials is increasingly finding its way into applications. One example is gallium nitride (
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Date:
09/01/2021
The past 15 years have seen a massive shift in the way consumers communicate, not only with each other, but with the devices around them. There has been a vast array of wireless technologies introduced that aimed to connect devices and people. These connections ultimately became the foundation for the ever-evolving In
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Date:
12/13/2015

Electrolytic capacitors are an essential ingredient in AC/DC power supplies, providing high Capacitance x Voltage (CV) and low Equivalent Series Resistance (ESR) in low-volume packages that simply cannot be achieved cost-effectively using alternative parts. With power density demands increasing and as the only com
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Date:
12/07/2015
Some of the key applications which drove the explosive growth of LEDs used to backlight thin film transistor (TFT) liquid-crystal displays (LCDs) included high definition (HD) TVs, portable tablet PCs, automotive infotainment displays and the myriad of handheld communication devices. However, in order to maintain th
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Date:
12/07/2015
Monitoring fluid levels efficiently and accurately has been a challenge to automotive engineers for a long time. While knowledge of the fuel level is important to the driver, there are other fluids the vehicle itself needs to monitor, such as motor oil, brake fluid, and battery fluids. Many cars have also started to
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Date:
12/07/2015
For AC/DC power supplies, there is by nature phase differences and distortion between input currents and voltages due to the existence of holding capacitors and various load features. Here, only the instantaneous product of current and voltage produces power that can actually be used by the appliance, and the pow
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Date:
12/05/2015
In Part 1 of this discussion, we explored the functionality of a series-connected avalanche transistor pulser, specifically for the purpose of evaluating dV/dt ruggedness of SiC Schottky diodes. In this issue, the diodes are tested with the new pulser design. SiC Schottky diode dV/dt ruggedness testing With a
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Date:
12/04/2015
There is a growing debate on the issue of autonomous, or self-driving cars (let’s call them “autocars”), as people and society begin to re-evaluate and further develop the concept of what the next generation of personal mobility technology should be. Cars are on the cusp of change, as next-generation energy, dr
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Date:
12/03/2015
Automotive systems in flux

Kevin Parmenter, Power Systems Design Contributor

The yearly figures for electronics in the automotive and transportation market continue to grow, as vehicle tech push the envelope on quality and reliability almost as stringent as mil/aero applications. Interestingly enough the automotive market is also the largest application user/consumer of motors.  This means that
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Date:
12/03/2015