Voltage Inverter II


Posted on Mar 24, 2013

This simple and inexpensive circuit can produce a dual (positive and negative) voltage from a single supply input. It is therefore extremely useful for powering opamp and other circuits that require a dual voltage from a single battery. The circuit will operate at an input voltage from around 5V to 20V and produce a output from +-2.5V to +-10V.


Voltage Inverter II
Click here to download the full size of the above Circuit.

# U1 dissipates around 1W and will therefore require a heatsink. # R1 is used to equalize the outputs. The first time you use the circuit, it should be set to mid range and then adjusted with the aid of a voltmeter. Measure each output while adjusting.




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