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Old 27th May 2004, 02:40 AM   #11
K-amps is offline K-amps  United States
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Kenwood also has a similar regulation circuit called the VIG in the early 80's. It used the output current to increase the input differential pair's current, doing kind of providing positive feedback and thus regulation to the input pairs.

I guess they did so because typically Japanese manufactureres had to use puny PSU'd to keep shipping costs down.

Sorry for Digressing...

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Old 27th May 2004, 08:54 PM   #12
K-amps is offline K-amps  United States
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Originally posted by GRollins
A high fixed bias "anticipates" the needs of the signal...or you could simply call it "sustained" in order to give it some marketing pizazz.

By definition, wouldn't every class AB amp have this intrinsic adaptive biasing?

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