Fast amplifier output stage

Details Fast amplifier output stage Fast amplifier output stage

1997-10-27

2000-09-05

Pascal, Robert

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330257, H03F 345

Patent

active

061149047

ABSTRACT:
An amplifier output stage comprises an output transistor having a control terminal coupled to a first supply rail through a controllable current source, and a main terminal connected to an output terminal of the output stage; and an auxiliary differential stage operatively connected to compare the voltage on the output terminal to a reference voltage and to pull the control terminal of the output transistor towards a second supply rail when the voltage on the output terminal reaches the reference voltage.

REFERENCES:
patent: 4042886 (1977-08-01), Hanna
patent: 4122401 (1978-10-01), Sauer
patent: 4306198 (1981-12-01), Okada
patent: 4338527 (1982-07-01), Nagano
patent: 4543538 (1985-09-01), Fay
patent: 5117200 (1992-05-01), Scott, III

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