How to build Regulated 12 Volt Supply



Description
A basic regulated 12 Volt power supply

Circuit diagram

Notes:
This circuit above uses a 13 volt zener diode, D2 which provides the voltage regulation. Aprroximately 0.7 Volts are dropped across the transistors b-e junction, leaving a higher current 12.3 Volt output supply. This circuit can supply loads of up to 500 mA. This circuit is also known as an amplified zener circuit.

Author: Mick Devine
Email: mick_devine@yahoo.com
Website: http://www.electronics-lab.com

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