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The Designer's Guide Community Forum › Measurements › Other Measurements › how to generate a negative voltage during test

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how to generate a negative voltage during test (Read 71 times)

trashbox Community Member Offline Posts: 66	how to generate a negative voltage during test Sep 20^th, 2009, 7:58pm I need to add a negative voltage on the PCB for my circuit, the average output current is about 80mA. Except the charge pump chip, how can I realize a negative voltage with simple method? Thanks in advance! Trashbox
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loose-electron Senior Fellow Offline Best Design Tool = Capable Designers Posts: 1638 San Diego California	Re: how to generate a negative voltage during test Reply #1 - Jan 8^th, 2010, 1:49pm a separate negative power supply an oscillator generator and an isolation transformer a capacitive charge pump A solar cell and a bright light (just kidding)
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love_analog Senior Member Offline Posts: 101	Re: how to generate a negative voltage during test Reply #2 - Apr 20^th, 2010, 8:12am You can easily use a negative buck boost. This way it is also easy to change the voltage later on (by changing duty cycle)
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