Feedback biasing

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02:16:42

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published 8 years ago

592azy2circuitdude

8 years ago

That's a cool circuit. Would you mind explaining what's going on?

crake

8 years ago

http://everycircuit.com/circuit/5520115369246720

crake

8 years ago

The idea is, when the collector current begins to move up or down, beyond the designed DC operating point, the current through the feedback resistor responds in the opposite manner, which steers the collector current back to where it was intended to be.

592azy2circuitdude

8 years ago

I see the idea. Thanks

zorgrian

8 years ago

Even simpler feedback bias... http://everycircuit.com/circuit/5081839726493696

hurz

8 years ago

Dont forget an input rssistance which is needed so the feedback can work against something! http://everycircuit.com/circuit/5091788917571584

zorgrian

8 years ago

Yeah good point Hurz! I use this topology often but of course it assumes a input Z from the last stage or source, without which the circuit is feeble rather than simple!

zorgrian

8 years ago

I'm waiting for the 2 City Bees ... That buzzing sound of intermittent interference... Early warning detection of NMOS lecture noise has been identified over European Brexit Lands...

hurz

8 years ago

Right, he got a little of knowledge somewhat and now we have to suffer from his world formular explanations, funny.

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