voltage inverter

Posted on Feb 18, 2013

This circuit inverts the polarity of the input. output is limited to less that 200mA.

voltage inverter
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U1 NE555 timer IC R1 1.2k ohm resistor R2 3.9k ohm resistor R3 1k ohm resistor C1 0.05 uF ceramic capacitor C2, C3 220 uF electrolytic capacitor D1, D2 1N4002 diode all resistors are 5 or 10 percent tolerance, 1/4-watt all capacitors are 10 perc

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