Author - Alan Adamsky

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Alan Adamsky	Write for Electronic Design
Alan Adamsky is a power-supply consultant with Spectral Engineering Inc., Newton, Mass. He received a BEE from the City College of New York. Email address: ama@spectraleng.com
1 results found for Alan Adamsky, displaying items 1 - 1

September 1, 2007 [Ideas For Design]
Add Two Components To Power Supply To Ensure Proper Voltage Sequencing
Today's digital ICs typically demand complex voltage sequencing, a task that usually requires dedicated ICs or microprocessors. But what if your requirements are more modest? The sequencing scheme presented here requires only a single optocoupler and a resistor. Assume that the dc-dc converter's On/Off pin is pulled low to turn on and floats to remain off (see the figure). Also, in this example, the 5 V needs to turn on before the...