Adjustable Power Supply with Charger Output

Circuit 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

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