Output stage for amplifiers

Details Output stage for amplifiers Output stage for amplifiers

1991-10-23

1993-04-13

Pascal, Robert J.

Amplifiers

With semiconductor amplifying device

Including push-pull amplifier

330270, 330263, H03F 326

Patent

active

052026469

ABSTRACT:
An output stage for an amplifier includes first and second load current-carrying n-p-n output transistors disposed in different respective amplifier branches having different amplification properties. Negative feedback and limiting circuitry provides a negative feedback current to the first one of the output transistors and limits the negative feedback current to a preselected maximum value over a predetermined output current range whereby the amplification properties of the first one of the output transistors are affected in a range of output voltages of the amplifier stage.

REFERENCES:
patent: 3418590 (1968-12-01), Rongen et al.
patent: 3462698 (1969-08-01), Yagher
patent: 4025871 (1977-05-01), Peil
patent: 4050029 (1977-09-01), McFadyen
patent: 4538116 (1985-08-01), Vyne
GB Z: Solid-State Audio Power. In: Electronics World+Wireless World, Nov. 1989, pp. 1042-1048.

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