Technical solutions, industry trends and insights for designing and managing power supplies.
    • Jun 29, 2015

    Understanding MOSFET data sheets, Part 4 - Pulsed Current Ratings

    Welcome back, fellow FET enthusiasts to part four of the " Understanding MOSFET Data Sheets " blog series! Today I’ll be talking about pulsed current ratings, how they are calculated, and how they are represented in the safe operating a...
    • Jun 24, 2015

    Power Tips: How to create an adjustable output power supply

    The output voltage of a power supply is usually a fixed voltage, but sometimes it may be necessary to adjust that output voltage. For example, you may be able to reduce the power dissipation in a low-voltage high-current processor – while still keeping performance high – by adjusting the voltage fed to the core. Adaptive Voltage Scaling...
    • Jun 19, 2015

    Charge pump, inductor-based converter or LDO?

    As a designer, choosing the right power supply topology is essential. Making the wrong choice means angry customers and lost time and money. When looking at voltage regulation, the usual trade-offs of size, efficiency, accuracy and voltage r...
    • Jun 17, 2015

    Why monitoring voltages matters

    Monitoring voltage rails is about as enthralling as doing yard work. And while most people don’t particularly enjoy pulling weeds or hedge trimming, it’s necessary to keep things from getting out of hand or having a significant other yel...
    • Jun 15, 2015

    Power Tips: Controlling errors in measuring power-supply efficiency

    Many elements go in to making excellent efficiency measurements in power supplies, but let’s concentrate here on temperature stabilization. Other concerns include quality and calibration of measurements and shunts. As efficiency requires two vo...
    • Jun 15, 2015

    May the forced UPOE be with you

    Contrary to what you might be thinking, this blog is not a review or in-depth analysis about a technology from a long time ago in a galaxy far, far away. It’s about a technology that already exists and is gaining more presence in your everyday life: in your home, at the office and everywhere in between. Power over Ethernet (PoE) is a technology...
    • Jun 12, 2015

    Control your power device with PMBus™

    Power density requirements for power supplies in cloud infrastructure end equipment like servers, Ethernet switches, base stations, and storage attach boxes is increasing. In response, the use of integrated MOSFET (Metal Oxide Semiconductor Field E...
    • Jun 10, 2015

    Power Tips: Four-phase, 1.2-kW design achieves high efficiency at higher currents

    To combat ever-stringent power requirements from the industrial and automotive industries, multiphase designs are a popular choice for engineers these days. For current requirements over 25A, more designers are opting for multi-phase approaches because of the key benefits they provide. Multiple phases provide lower output-ripple voltages when compared...
    • Jun 8, 2015

    How to get no-load power savings in AC to DC supplies

    In the interest of reducing wasted power in consumer electronics, many government policy initiatives have been created to reduce no-load or standby power in AC to DC power supplies. Among these are the Environmental Protection Agency’s (EPA) ENERGY STAR and the European Union’s Standby Initiative. Last year, in an Analog Applications Journal...
    • Jun 5, 2015

    How to tighten PMBus output current measurement accuracy

    Enterprise servers and switches, storage attach networks and base stations are increasingly using power supplies with PMBus to easily configure, control and monitor critical voltage rails such as high-current ASICs, DSPs, FPGAs and DDR memory core wi...