Technical solutions, industry trends and insights for designing and managing power supplies.
    • Aug 26, 2016

    LED brightness adjustment: high-frequency PWM dimming

    Figure 1: Automotive exterior lighting with LEDs In one of my previous blog posts , I introduced different dimming methods for light-emitting diode (LED) drivers: analog and pulse-width modulation (PWM) dimming. In this post, I will elaborate more on PWM dimming and how to get its frequency fast enough in order to reduce its effect on humans or other...
    • Aug 25, 2016

    Power Tips: How GaN devices boost resonant converter efficiency

    Wide-bandgap power devices such as gallium nitride (GaN) and silicon carbide (SiC) field effect transistors (FETs) have become commercially available in recent years. Compared with high-voltage (≥600V) silicon FETs, GaN and SiC FETs generally have...
    • Aug 22, 2016

    Staying cool, efficiently

    Looking back at my childhood in one of coastal India’s cities, I remember dense humidity paired with tolerable heat in the low 90s – a classic equatorial climate. But when I visit now, I notice that the temperatures are much higher, often exceeding 100 ° F. I also notice split air conditioners installed almost everywhere; these were...
    • Aug 16, 2016

    Enhance your home automation project with an LED driver

    The smart home is no longer just for movie and millionaires. New products are hitting the market every day to connect you to every part of your house. There are products to turn on your lights from the other room and you can even find a device to monitor your dog from afar. With advancing technology it’s now easier than ever to create your own...
    • Aug 15, 2016

    Step by step: How the series capacitor buck converter works

    My cousin introduced me to the Texas two-step a couple years ago. I enjoyed swing dancing in college but had never tried two-step before. My first few attempts were quite abysmal. Fortunately, I was with friends and we could laugh about it. After sev...
    • Aug 9, 2016

    How to reduce acoustic noise of MLCCs in power applications

    Multilayer ceramic capacitors (MLCCs) are popular in power electronics designs compared to traditional polymer capacitors for many reasons: An MLCC provides: A small profile with relatively higher capacitance. Very low equivalent series resistance (ESR). Very low equivalent series inductance (ESL). Lower impedance at higher frequencies...
    • Aug 8, 2016

    How to protect your server from hot swap events

    Need to replace your fan? Simply trade it out. Want to add more storage capacity? No problem – just exchange that 500GB SSD for 4TB. But have you ever worried during one of these activities that your server might spontaneously combust? Probably not. Unknown to some end users, many modern electronics provide protection against current and voltage...
    • Aug 4, 2016

    USB Type-C version 1.2 – USB embraces a broader market

    USB Type-C changed the USB ecosystem in a major way by making both ends of the USB cable interchangeable (not just flippable). This enables USB devices such as laptops or smartphones to have different behavior depending upon what other USB device they are connected to, since the data role and power role can be exchanged independently. The USB Implementers...
    • Aug 3, 2016

    5 simple steps to powering an SoC

    Example of PMIC powering an SoC As more and more designs are surpassing the capabilities of simpler microcontrollers, today I’m going to walk you through the basic considerations for powering a system on chip (SoC). The first thing you’ll need to do is pull up the data sheet or technical reference manual for the SoC you have selected...
    • Aug 1, 2016

    Rethinking server power architecture in a post-silicon world: Getting from 48 Vin – 1 Vout directly

    This post was originally published on EPC's GaN Talk blog . Discover more about the LMG5200 and TI GaN solutions here . Alex Lidow, Ph.D., CEO and Co-founder, EPC David Reusch, Ph.D., Executive Director of Applications Engineering John Glaser, Ph.D., Director of Applications Engineering The demand by our society for information is growing...