Dual Adjustable Power Supply +/- 1.2V to 30V DC. 1.5Amp

This project is a solution to power up most of devices or projects required dual (+/-) adjustable power supply. The circuit is based on LM317 positive and LM337 negative voltage regulator. LM317  series of adjustable 3 terminal regulator is capable of supplying in excess of 1.5A over a  1.2V to 30V DC output range, due to TO3 package of  IC and large heat sink the power supply can handle maximum load  current.

• Output: +/- 1.2 to 30V DC
• Output Current: 1.5Amps
• Supply Input: 24V-0-24V AC, 2Amps Center tape Transformer
• CN1: Transformer Connections
• CN3: +/- Dual Supply Outputs
• P1: Positive Voltage Adjust
• P2: Negative Voltage Adjust
• D1: Positive Power Indicator
• D2: Negative Power Indicator

 

 

SCHEMATIC

PCB TOP SILK SCREEN

PCB BOTTOM LAYER

 

 

PARTS LIST