High power output stage with temperature stable precisely contro

Details High power output stage with temperature stable precisely contro High power output stage with temperature stable precisely contro

1999-04-30

2000-11-28

Pascal, Robert

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330257, 330261, H03F 345

Patent

active

061540943

ABSTRACT:
An output stage driver circuit comprising two parallel class AB stages running at slightly different quiescent currents, the difference of which is scaled up through a current mirror is disclosed which provides a temperature stable precisely controlled quiescent current for the output stage. A current limited voltage source is provided to ensure inherent short circuit protection with instantaneous response to short circuit or excessive load current conditions.

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