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DiscoverCircuits.com -- Hobby Corner
"Hobby Circuits for
your Hobby Projects"
Last Updated on:
03/22/2010 03:34:07 AM
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0.5V Negative
Supply
designed by David A. Johnson, P.E. |
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not very efficient, this simple circuit, consisting of two LEDs and a photo diode,
generates a negative voltage with a current level of a couple milliamps. It is
ideal for supplying a negative rail to low power “rail to rail” op amp circuits, which
need to have a true zero volts output. |
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Click on Schematic below to view PDF
version of this Circuit |
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