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Old 22nd November 2009, 01:44 PM   #11
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ventle (and Elvee),
I`m sorry, a correction is necessary: your circuit should work as intended. Are you making progress?
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Old 22nd November 2009, 02:36 PM   #12
Elvee is offline Elvee  Belgium
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Ventle,

You should post the remainder of your circuit.
As I said earlier, it is possible the VAS is stuck with its output high, paralysing the lead CCS, and consequently blocking the secondary one, thus starving the differential amplifier, and in turn the VAS. A latch-up situation.
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Old 22nd November 2009, 04:09 PM   #13
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Elvee,
anyhow, there´s great value in applying stage currents independently.
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Old 23rd November 2009, 06:50 AM   #14
Elvee is offline Elvee  Belgium
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Quote:
Originally Posted by Lumba Ogir View Post
Elvee,
anyhow, there´s great value in applying stage currents independently.
It is a matter of requirements, tradeoffs, etc. Each case is a specific case.
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