high power torch

154

02:28:13

high power torch two 4.5v or one 9v batteries

published 6 years ago

firebirdpc

6 years ago

why do you have the capasitors?

labt10

6 years ago

@firebirdpc I put the capacitor to keep the reference voltage of the transistor constant

hurz

6 years ago

@labt10, both transistors are in parallel, do you know transistors do have a negative temperatur coefficient and just parallel them will endup in an disaster.

PrathikP

6 years ago

You should control you pass transistors seperately like this: http://everycircuit.com/circuit/4725333325250560

PrathikP

6 years ago

The non inverting terminals are connected together because both error amps need the same reference voltage. Also, your voltage reference should be better.

PrathikP

6 years ago

Your voltage reference's behaviour should be independent of the input voltage , like this http://everycircuit.com/circuit/5806215716929536

labt10

6 years ago

i look at it, thank you @hurz @PrathikP

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