Author - Marc Davis-Marsh

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Marc Davis-Marsh	Write for Electronic Design
Marc Davis-Marsh is an applications engineer with National Semiconductor Corp., Santa Clara, Calif. He holds an MSEE and BSEE from Wright State University, Dayton, Ohio. Email address: Marc.Davis-Marsh@nsc.com Web site: http://www.national.com
1 results found for Marc Davis-Marsh, displaying items 1 - 1

January 29, 2009 [Ideas For Design]
An Easy Way To Roll Your Own Programmable Power Supply
Adjusting the output voltage of a power supply is a feature typically reserved for highly integrated handheld power-management units (PMUs) with multiple integrated power supplies. You can implement this feature, however, with any power supply by adding a single resistor and an inexpensive digital-to-analog converter (DAC) (Fig. 1). While this technique isn’t new, the equations to select...