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Last Updated on: Monday, July 11, 2016 02:00 PM

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More  DC to DC / Switch Mode and DC to DC Converters     
Voltage Converters
    Flyback Circuits     LEDs

 

0.5V Negative Supply


Although 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.

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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