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-4

BOM

Dual-Adjustable-Power-Supply-3

PCB TOP LAYER

image description

PCB BOTTOM LAYER

Leave a Reply

Your email address will not be published.