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More  DC to DC / Switch Mode and DC to DC Converters     
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0.5V Negative Supply


This simple circuit consists of two LEDs and a photo diode.  It 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. Note:  This circuits is not particularly efficient.

Click on Circuit Below to view PDF of Schematic


0.5V Negative Supply designed

 by David Johnson, P.E. (May 20, 2005)



More  DC to DC / Switch Mode and DC to DC Converters      Voltage Converters  
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