Circuit : Milardo de Guzman
Notes
This power supply has adjustable and charger output. The charger circuit can be use for cellular phone. The adjustable output serves as multipurpose power supply. It can handle a 1 ampere current. The 317 must have a heat sink.
PCB Layout
Parts List
Semiconductor:
LM 317 - 1pc
LED - 1pc
1N 4001 - 8pcs
Capacitors:
25V/470uF - 1pc
25V/10 uF - 1pc
Resistors:
1k, 1/2W - 1pc
220R, 1/2W - 1pc
5kR Potentiometer - 1pc
Others:
1Ampere, Multi-tap Transformer - 1pc
AC Chord - 1pc
Casing - 1pc
#22 Stranded Wire - 3m
Heatsink for TO220
