Articles and Papers from BEAR Power Supplies

How to spec a reliable custom power supply

By Michael Winslow, BEAR Power Supplies

Electronic Products - September 2007

When reliable power matters – such as in commercial, industrial and medical systems – even the most careful designers fail to include some essential information in their power supply specification. Here are five tips for specifying a reliable custom power supply unit (PSU) with the right balance of performance and cost for your application.

Download the article: Five essential tips on how to spec a reliable custom power supply (237Kb PDF)

Designing Power Supplies for Portable Devices

By Michael Allen, BEAR Power Supplies

Medical Design - June 2007

Medical professionals expect high performance and reliability from portable medical electronic systems. Meeting these requirements often means that you will have to design the unit's DC/DC converter yourself, or commission a custom design. Here are several key factors to keep in mind, based on BEAR's experience designing power supplies for portable medical devices and other portable systems. Read about designing power supplies for portable devices.

Hot tips on temperature specs

By Brandon Hallen, BEAR Power Supplies

Machine Design - January 2007

What do a vendor's temperature specs tell you about the expected lifetime of a power supply? Can you use the manufacturer's mean time between failures (MTBF) data to get an idea of how long the power supply will last? This article answers these questions and more, explaining how to examine the temperature rise and construction of a power converter to get a much truer picture of a power supply's quality and life expectancy. Read hot tips on temperature specs for power supplies.

Inrush current limiting explained

By Michael Allen, BEAR Power Supplies

Electronic Products - March 2006

This technical article describes the importance of inrush current limiting, and compares advantages of the techniques commonly used in commercial power supplies.

Download the article on inrush current limiting (164Kb PDF)

ROHS compliance: It’s not easy being green

by technical editor Richard Quinnell

EDN - March 16 2006

Michael Allen discusses the issues of finding RoHS compliant parts for our power supplies. These problems led us to buy the X-Ray Fluorescence Spectrometer and use it to test incoming components for lead and other hazardous substances. Read the article on RoHS compliance



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