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

Dual Adjustable Power Supply (1)

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

 

 

Dual Adjustable Power Supply (2)

SCHEMATIC

Dual Adjustable Power Supply (3)

PCB TOP SILK SCREEN

image description

PCB BOTTOM LAYER

 

 

Dual Adjustable Power Supply (4)

PARTS LIST

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