Technical solutions, industry trends and insights for designing and managing power supplies.
    • May 9, 2019

    How to choose a DC/DC converter for a storage application

    Driven by the global cloud computing development and continuing construction of data centers, shipments of global storage equipment are experiencing explosive growth. As the key part of the storage equipment, the demands for DC/DC converters that power the storage equipment (solid-state drive [SSD] and memory) also show a relatively rapid growth trend...
    • Apr 30, 2019

    When failure isn’t an option: power up your next satellite with integrated functionality and protection

    Satellite building is hard. Complex applications like communications, navigation and Earth observation demand insanely complex electrical and software engineering. With numerous sensors, field programmable gate arrays (FPGAs) and integrated circuits...
    • Apr 26, 2019

    Design a pre-tracking regulator, part 2: for a negative LDO

    By Arief Hernadi and Frank De Stasi The first installment of this two-part series demonstrated how to create a tracking pre-regulator for a positive output low-dropout regulator (LDO) . In this installment, we’ll use a similar technique to create a tracking pre-regulator for a negative output LDO. This example will use the same LMR33630 evaluation...
    • Apr 17, 2019

    Improvements in solar power efficiency come from the smallest gate drivers

    Climate change has been a subject of much debate the past 10-30 years, sparking political discussions on what types of regulations are necessary. In the short term, it’s significantly more expensive to develop a greener infrastructure that move...
    • Apr 15, 2019

    Battery-charging tips for video doorbell applications

    Figure 1: Video-enabled doorbell Our homes are getting smarter and connecting to the internet with security cameras, thermostats, smart speakers and smart TVs. The video doorbell, seen in Figure 1, is another smart device gaining popularity, providing high-definition images and two-way audio communication so that homeowners can greet visitors from...
    • Apr 5, 2019

    Minimize the impact of the MLCC shortage using D-CAP+™ control mode

    As my colleague Yann said in an earlier blog , there is a growing shortage of multilayer ceramic capacitors (MLCCs), and the situation is likely to persist through 2020. MLCCs are used in almost every type of electronic equipment, due to their reliability and small footprint. Manufacturers are now looking to replace ceramic capacitors with polymer...
    • Apr 3, 2019

    4 Reasons why you should use a boost charger for 2-cell battery application

    (Note: Eric Zhao co-authored this blog post.) Finding the perfect battery charger integrated circuit (IC) for your portable electronic device design is not always easy, especially when you need a battery with more than one cell in series (1S) for hig...
    • Apr 3, 2019

    No avalanche? No problem! GaN FETs are surge robust

    We live in silicon-dominated world that shapes our thinking. I find it interesting to imagine an alternate universe where the gallium nitride (GaN) power field-effect transistor (FET) was developed before the silicon FET. Our power converters would c...
    • Mar 29, 2019

    Minimize the impact of the MLCC shortage on your power application

    There is a growing shortage of multilayer ceramic capacitors (MLCCs), and the situation is likely to persist through 2020. MLCCs are used in almost every type of electronic equipment, due to their reliability and small footprint. While MLCC manufacturers are taking action to increase their production capacity, demand is still expected to outpace...
    • Mar 17, 2019

    How to make a simple nonmagnetic AC/DC power supply

    When creating an industrial power supply, one of the most common challenges is transforming the AC voltage supply into a DC voltage supply. Changing an AC voltage to a DC voltage is necessary for nearly every application, from charging cellphones to powering a microcontroller for a microwave. Typically, this conversion occurs through the use of a transformer...