Negative power supply with the protection amp

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01:10:51

Negative power supply, with the protection amp.

It start at -2 volts and a maximun -22.5 Volts.
It is limited to 500 mA.

If you try to build it so remember to use transistors and resistors that can handle 10 watts which it can deliver.

This supply I make as a school project
the works and is tested.

If you have any questions, you should just ask

Only the transistor on tghe top line need to be a power transitor here i used Tip 41 3 Amp.

allso the 1.2 ohm resistor need to be a 10 Watt power resistor,

for the small transistor I used Bc557
resistor are all 1/4 watt

published 10 years ago

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