Dual Voltage 12V Power Supply

Posted on Dec 11, 2012

The following circuit Diagram of (DUAL VOLTAGE POWER SUPPLY ) can be used for Misc.. application. It requires a few components to built. The most important components of this circuit are REGULATORS. 1 : (AN) 7812 and 2 : (AN) 7912 AN7812 is the Positive Voltage Regulator. It regulates the voltage from (almost) 24vDC to 12vDC (accurate). AN7912 is the Negative Voltage Regulator. It regulates the voltage from (almost) -24vDC to -12vDC. A transformer output must be between 12vAC to 24vAC @ 500mA. Input of transformer (Primary) should be about 110vAc-220vAC. It also include some capacitors to filter the current.

Dual Voltage 12V Power Supply
Click here to download the full size of the above Circuit.

Leave Comment

characters left:

New Circuits



Popular Circuits

Electromyogram Monitor
Beat frequency indicator
Color-Bar Generator
5v regulator circuit using lm105
radio remote control using dtmf circuit
op amp monostable multivibrator
pwr amp
c programming tutorial setup
One transistor code lock
Lets to build many VU Meter circuits with LM3914
Pre MIC (microphone preamplifier) 2 CH by IC NE5532 or LF353
Linear RF Power Meter
Handheld Oscilloscope Oscillator Circuit
USB Operated Home Appliances