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Old 9th March 2011, 08:12 PM   #1
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Location: quebec
Default totempole output

Could this configuration of output stage be used for headphone amplifier.

Of course: input circuit ,voltage gain and feedback is needed
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Old 10th March 2011, 04:54 AM   #2
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Nice, I like a lot.

Myself would certainly change input BJT's with mosfet's.
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Old 10th March 2011, 11:36 AM   #3
Elvee is offline Elvee  Belgium
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Maybe I miss something, but I fail to see how the circuit will bias itself.

On the other hand, if it happens to be biased (by a divine intervention f.e.), and the current through the output devices exceeds ~100mA, it will behave like a composite SCR, short the supplies and self-destruct.
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Old 10th March 2011, 12:26 PM   #4
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Oooooooooooops there is an inversion I did not notice ..... Elvee saw it .... and he is right ... thank-you Elvee
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