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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 Drawing Below to view PDF version of Schematic

Circuit 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  
Flyback Circuits    
LEDs

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