Technical solutions, industry trends and insights for designing and managing power supplies.
    • May 22, 2018

    Effects of IC package on EMI performance

    The origin of electromagnetic interference (EMI) in switched-mode power supplies can be traced back to the transient voltages (dv/dt) and currents (di/dt) generated during the switching of power metal-oxide semiconductor field-effect transistor (MOSFET) devices. With ever-growing demand for more power as well as higher switching frequencies, it is becoming...
    • May 16, 2018

    How to modify a step-down converter to the inverting buck-boost topology

    When looking for a DC/DC converter to create a negative voltage, in many cases you will use a step-down converter in the inverting buck-boost topology. While dedicated inverter devices such as the very-low-noise TPS63710 are easier to design with and generally a better solution, there are numerous reasons to use a step-down converter as an inverting...
    • May 15, 2018

    New WEBENCH® Power Designer is now even easier to use

    TI is committed to continually improving the online design experience. On July 5, we will introduce our new fully redesigned HTML5 application for WEBENCH® Power Designer. In this post, I will walk you through the new enhancements, designed to help you make power design decisions faster and easier. The input form The first thing you’ll...
    • May 11, 2018

    How to approach a power-supply design – part 5

    In this final installment of the topology blog series, I’ll introduce the inverting buck-boost converter and Ćuk converter. Both topologies allow you to generate a negative output voltage from a positive input voltage. Inverting buck-boost converters The inverting buck-boost topology can step up and step down its input voltage while the...
    • May 9, 2018

    Less (standby) power and more light

    With the highly anticipated ratification of the latest Power over Ethernet (PoE) standard, Institute for Electrical and Electronics Engineers (IEEE) 802.3bt, an increasing number of applications are considering PoE as their power delivery technology...
    • May 9, 2018

    A PMBus power solution for NXP QorIQ processors

    NXP QorIQ processors are high-performance 64-bit Arm® multicore processors for cloud networking and storage applications. Two of the high-end QorIQ variants are the LS2085A and LS2088A. There are several power-supply rails required on an LS2085A...
    • May 2, 2018

    Look at the details when designing an industrial PC – 1% is not always 1%

    With process geometries of semiconductor technology declining to 10nm or below, designing the power supply for an industrial PC or single-board computer gets challenging like never before. In addition, the Industrial Internet of Things (IIoT) and Industry 4.0 are creating a stronger push toward smaller computing systems with increased performance. Figure...
    • May 1, 2018

    How to design a simple constant-current/constant-power/constant-voltage-regulating buck converter

    Introduction In a previous blog titled “ How to design a simple constant current/constant voltage buck converter ,” I discussed how to design a constant current/constant voltage converter (CC/CV). With the addition of a simple modification, the functionality can be modified to regulate the output power and operate within a constant power...
    • Apr 26, 2018

    What is the storage temperature rating, and why does it matter?

    One key metric to determining power-module reliability is the storage temperature rating. When selecting a module, you need to be sure that the module manufacturer is independently verifying the stand-alone inductor component used in the power module. Inductor qualification tests are not standardized across companies and quantities, and ratings that...
    • Apr 20, 2018

    Shrink module size with Flip Chip On Lead (FCOL) package technology

    Power modules are becoming increasingly popular in many market segments – the ability to buy a power supply that already includes the switching inductor is a big advantage. The main reasons engineers are choosing power modules as opposed to a discrete alternative are: Reduced Solution Size. Power Modules are typically smaller than what designers...