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Stabilised Power Supply with Current Limiting [Deleted]

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mechie

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mechie submitted a new article:

Stabilised Power Supply with Current Limiting - A simple bench PSU capable of :-
Approx. 5v to 15v output at 1A
Current limited from about 500mA

A simple bench PSU capable of :-
Approx. 5v to 15v output at 1A
Current limited from about 500mA to 1A (adjustable)

Discreet_PSU_V1.gif


Circuit Operation
An error amplifier is formed from Tr1 and Tr2, wired as a differential amplifier (often called a long-tailed pair -- look at those collector leads). One input of this diff. amp is taken from the zener diode which provides a stable 4.7 volts, the other diff. amp input is a...

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