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Custom Power Supply Welcome to HOW2POWER • This power electronics portal is your first stop for information on all aspects of power conversion. It features the HOW2POWER Design Guide, an article search tool; the How2Power Today Newsletter (our monthly magazine); the Consultants Corner directory; the Power Magnetics section; the Power Around the Web links directory; and the extensive Industry Events section. Get a quick introduction to HOW2POWER at About Us.   David G. Morrison - Editor of - Contact David

The HOW2POWER Design Guide
Use this tool to search for articles, videos, application notes and other source materials on power conversion and power management topics.

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It’s a search tool that offers convenient access to hundreds of articles on power conversion and power management topics. The Design Guide search results include exclusive article summaries and "how to" analysis to speed your search for information related to power supply and power system design.
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HOW2POWER TODAY brings you in-depth reporting on the latest design techniques for power conversion, new components, and the employment outlook for power electronics engineers.


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In the Mar issue of HOW2POWER TODAY:

» Power Stage Strategies For Motor Control In Home Appliance Design

» Estimating Output Current Tolerance Of A Primary–Side-Regulated Constant-Current Flyback Converter (Part 3): Extreme Value Analysis And Sensitivity Analysis

» The Engineer’s Guide To EMI In DC-DC Converters (Part 3): Understanding Power Stage Parasitics

» To Simplify Or Not To Simplify? Take Care When Using Math Tools For Circuit Analysis

» Modeling Of The Sen Transformer Using An Electromagnetic Transients Program

» Focus On Magnetics:
Winding Layering Techniques Determine Interlayer Capacitance

» Spotlight On Safety & Compliance:
New Isolation Technologies Close The Gap With Optos On Compliance

and more…

From the Editors Desk (Mar Newsletter)

More GaN reference designs, discussions on magnetics, 48-V to point of load design solutions, wireless power and USB-PD-based power supply designs were among the tech highlights I will remember from APEC 2018, held just a couple weeks ago in San Antonio. The first three items on my list sound suspiciously like my impressions from last APEC. Once again, there were many GaN designs on display in the expo, which only serves to support the message that GaN power devices are real and…  Read more»

The Case Of The MOSFET Failure

by Paul L. Schimel, PE

I recently had a fun problem come across my desk. It’s a common sequence of events. My customer built a power converter, they used my MOSFETs in the converter. The converter failed, the failure took out the MOSFET. Having been through a few of these sorts of things, I know the difficulty firsthand, as a customer as a vendor and as a senior FAE existing between the two. To get to the root cause, there is a lot of information that needs to be shared on many levels.
Read the full story »

SiC & GaN

This section brings you news of Silicon Carbide and Gallium Nitride developments along with related design information, supplier data, book reviews, and technology roadmaps.

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If you’re looking for a practical introduction to the field of motor drives, Ken Johnson’s extensive series explains the basics of all aspects of motor drive operation. This overview aims to fill in the gaps in other sources.

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Sponsored by
Payton Planar Magnetics

The Global Source for Environmentally Friendly Planar & Conventional Magnetics

Read about techniques for designing magnetic components such as inductors and transformers for power electronics applications.

Read about new magnetic components and technologies.

Find a consultant with magnetics design expertise.

Where To Find Custom Power Magnetics For Your Application (A source list of magnetics vendors with details about what they offer.)

Sponsored by
Teledyne LeCroy


The subject of power integrity (PI) concerns the design, analysis and testing of components and systems for the purpose of accurate and reliable delivery of voltage and current from the voltage regulators across power distribution networks (PDNs) to complex and sensitive loads in electronic systems. The challenges of designing modern, high-speed electronic systems are making it increasingly important for engineers to understand PI.

This month: The Quickest Path To Power Integrity
by Steve Sandler
Read the article »


"Current-Loop Control In Switching Converters," a seven-part article series by Dennis Feucht of Innovatia Laboratories, Cayo, Belize was published in the September 2011 through March 2012 issues of HOW2POWER TODAY.

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In this 8-part video series, Steve Sandler discusses essential concepts, relationships and test methods needed to identify and correct stability, noise and EMI issues in electronic components and systems.

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Graduate programs offering specialized training in power electronics provide new engineers with the educational foundation for working in a range of industries. They also conduct fundamental research paving the way for development of more advanced power semiconductors, power converters, and power systems. The articles in this section provide detailed overviews of power electronics programs around the world.

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Learn more about the wide array of resources available on other power electronics websites. Here you’ll find descriptions of relevant websites, organized into the following convenient categories: Blogs • Design Notes & Tools • Industry Organizations People • Jobs • Product Guides • Publications.

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A select list of design-oriented articles and videos discussing electromagnetic interference (EMI) and electromagnetic compliance (EMC) issues as related to power supply design.

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This section presents articles on Safety & Compliance relevant to both designers and users of power supply products. These articles discuss compliance requirements related to safety, electromagnetic compliance (EMC), energy efficiency, and other areas affecting power supply approvals regionally and globally for diverse applications and markets.

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This section presents information to help designers find rad hard dc-dc converters and voltage regulators for space applications such as satellites and spacecraft. This section covers both fully functional dc-dc converter modules as well as power ICs.

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This section presents information and resources to help designers select and evaluate power supplies for military and defense applications. This section covers both military-grade and COTS power supplies, off the shelf and custom.

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Learn about the unique aspects of the “foremost IEEE conference in the field of electrical and electromechanical energy conversion” and why you’ll want to participate in the upcoming ECCE 2017 in Cincinnati, Ohio. Visit this section»


How2Power presents reviews of textbooks on various topics relating to power electronics and power conversion.

Read the Reviews»


Read about the services and skills offered by consultants specializing in power electronics design. As you’ll discover from viewing their entries, these consultants have years of experience in power conversion across a wide range of power levels, applications, and technologies. If you’re a manufacturer who needs help with power system design, these consultants are poised to tackle your most difficult design challenges.

Meet the Consultants»


In conjunction with the Power Sources Manufacturers Association (PSMA), How2Power offers power supply design and power magnetics design technical publications.

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More Videos

Introduction to Non-Invasive Stability Measurement
In this video, Picotest’s Steve Sandler shows how to measure power supply control loop stability using the Bode 100 VNA via Output Impedance. This test does not break the loop and is more accurate than a Bode plot.
Click here for video…


HOW2POWER’s Events Calendar lists selected conferences, tradeshows, and workshops related directly or indirectly to power conversion. This listing includes a wide range of application or market-focused events where suppliers of power components or power supplies may be exhibiting, or where technical presentations related to power conversion may be presented.


Upcoming Events:

• 03/22/18 RF & Microwave
• 03/26/18 International Battery Seminar & Exhibit
• 03/26/18 GPU Technology Conference
• 03/26/18 AUSA Global Force Symposium and Exposition
• 03/28/18 Paris Space Week
• 04/03/18 MDTX
• 04/04/18 ADAS Sensors
• 04/08/18 CPES
• 04/09/18 Advanced Battery Power
• 04/10/18 CS International
• 04/15/18 SPIE
• 04/16/18 IEEE PES T&D Conference & Exposition
• 04/16/18 ICMIM
• 04/17/18 PEMD
• 04/19/18 IEEE SoutheastCon
• 04/20/18 Electric Power and Motor Fundamentals Seminar
• 04/23/18 Hannover Messe
• 04/24/18 AEA International Convention
• 04/30/18 OTC
• 05/02/18 DMEMS
• 05/07/18 CMSE
• 05/08/18 Electric Power and Motor Fundamentals Seminar
• 05/13/18 ISPSD
• 05/14/18 ISPCE
• 05/22/18 SPI

View the Calendar»

February Update

APEC 2018: A Preview Of
The Power Semiconductors
And Application Demos You’ll See
In This Year’s Expo

If you’re interested in exploring the latest power semiconductor devices and reference designs for a broad range of existing and emerging power electronics applications, the exhibition at APEC likely presents one of your best opportunities to do so. While the technical conference is what built the Applied Power Electronics Conference (APEC), its expo has become the largest power electronics focused exhibition in North America. This 8-page article presents a preview of the semiconductor products, reference designs and demos you’ll see at APEC 2018 in San Antonio, TX as well as a handful of the passive components, test instruments and design tools that will be on display. Read the article…


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