## Fixed Voltage Power Supply Circuit

The fixed voltage power supply is useful in applications where an adjustable output is not required. This supply is simple, but very flexable as the voltage it outputs is dependant only on the regulator and transformer you choose. The maximum output current is 1.5A.

**Parts**

C1 2200uF 35V Electrolytic Capacitor

C2, C4 0.1uF Ceramic Disc Capacitor

C3 10uF 35V Electrolytic Capacitor

D1, D2 1N4007 Silicon Diode

BR1 2A 30V Bridge Rectifier

U1 Regulator (See Notes)

T1 Transformer (See Notes)

S1 SPST 2 Amp Switch

F1 2A 250V Fuse and Holder

MISC Heatsink For U1, Line Cord, Case, Wire

**Notes**

1. Since this project operates from 120 (or 220, or 240, etc.) volts AC, it MUST be built inside a case.

2. U1 will require a heatsink.

3. You will need to choose T1 and U1 to match the voltage you want. Use the table below as a reference.

**Output Voltage, T1, U1**

5V - 6V, 1.5A - 7805

6V - 6V, 1.5A - 7806

9V - 12V, 1.5A - 7809

12V - 12V, 1.5A - 7812

15V - 24V, 1.5A - 7815

18V - 24V, 1.5A - 7818

Author:

website: http://www.aaroncake.net