Technical solutions, industry trends and insights for designing and managing power supplies.
    • Apr 11, 2017

    The effects of gate-driver strength in synchronous buck converters

    The peak voltage at phase node, VPH, in a synchronous buck converter is one of the main specifications to determine converter reliability. Designers usually allow phase-node ringing to be as much as 85% to 90% of the MOSFET data sheet’s absolut...
    • Apr 10, 2017

    A handy tool for power-supply designs

    Versatility is a good thing. You probably have one of those tools in your toolbox – probably not advertised as such, but something that just ended up being good for everything from prying and bending, to loosening stuff. You reach for that tool repeatedly because you’re comfortable with it and you know that it’s going to do the job...
    • Apr 7, 2017

    Managing power scaling and sequencing the analog way

    With the emergence of Internet of Things (IOT) applications , more and more application-specific integrated circuits (ASICs) and field-programmable gate arrays (FPGAs) are being deployed into cloud computing and server system applications. These high-performance end applications demand higher processing power and ever-increasing clock speeds. Voltage...
    • Apr 5, 2017

    It's a wrap at APEC – power trends, friends and automobiles

    The 2017 Applied Power Electronics Conference (APEC) did not disappoint. The annual pilgrimage to the premier global event in power electronics was full of ideas, implementations and illuminations. Let me share some of the key takeaways from the energizing week. Data center power delivery could see some major restructuring. Two plenary talks (one...
    • Mar 28, 2017

    How to tame EMI noise in your power-supply design

    Let’s say you are designing a buck power supply for a combustion engine application (a lawn mower, chain saw or automobile). For this application, you know you will need to meet a Comité International Spécial des Perturbations Rad...
    • Mar 27, 2017

    Save PCB space and overcome point-of-load design complexity with PMBus modules

    Engineers face many difficult challenges when designing power supplies for industrial and communication systems. A typical system can include one or more field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), systems-on-chip (SoC), networking and communication processors, or other types of processors. Each processor...
    • Mar 25, 2017

    Rethink compute density with GaN

    According to a report published by the Lawrence Berkeley National Laboratory in 2016, data centers across the United States consumed a whopping 70 billion kWh of energy in 2014. It comes as no surprise that the industry is continuously looking for ways to increase power efficiency and density. Higher efficiency saves both electrical and major operational...
    • Mar 23, 2017

    Know your gate driver

    I hope you’ve had a chance to watch our video series, “ Know Your Gate Driver .” Although often overlooked, gate drivers are responsible for a lot of the heavy lifting in systems like power supplies and motor-control systems. I like to think of a gate driver as a muscle ! The video series explains how while highlighting key gate-driver...
    • Mar 20, 2017

    Selecting a bidirectional converter control scheme

    The 48V-12V dual-battery power system is becoming popular for mild hybrid electric vehicles . The vehicle’s dynamic operating conditions may require the transfer of electric power as high as 10kW back and forth between the two battery rails. Because of all sorts of operation scenarios in a moving vehicle, controlling the power flow needs in one...
    • Mar 16, 2017

    LDO basics: dropout

    The quintessential characteristic of a low-dropout (LDO) linear voltage regulator has to be dropout. After all, that is the source of its name and acronym. At the most basic level, dropout describes the minimum delta between VIN and VOUT required for...