Dual voltage power supply 12 volts

Posted on May 16, 2012

This circuit is a dual voltage regulated power supply, +12, -12, 0 volt. It uses the 7812 and 7912 regulators. You need a 18VCT, 1A transformer at input.

Dual voltage power supply 12 volts
Click here to download the full size of the above Circuit.

Caution: Input / Ground are reversed between the 7812 and 7912.

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