Temperature compensated feedback circuit for setting and stabili

Details Temperature compensated feedback circuit for setting and stabili Temperature compensated feedback circuit for setting and stabili

Filed on

1989-10-31

Date issued

1991-04-16

Examiner

Mullins, James B.

Patent Class

Amplifiers

SubClass

With semiconductor amplifying device

SubSubClass

Including differential amplifier

Other Related Categories

330258, 330259, H03F 345

Type

Patent

Status

active

Patent number

050086324

Description

ABSTRACT:
Described is an improved differential amplifier arrangement with a temperature compensated feedback circuit which sets and stabilizes the DC bias point of the amplifier. The circuit averages the two outputs of the amplifier and generates a DC voltage which is compared with a reference voltage to generate a control signal which is amplified and is used to control the bias point of the amplifier.

REFERENCES:
patent: 3444472 (1969-05-01), Johnson
patent: 4105942 (1978-08-01), Henry
patent: 4616189 (1986-10-01), Pengue, Jr.
patent: 4701719 (1987-10-01), Nagata
patent: 4720686 (1988-01-01), Westwick
patent: 4904953 (1990-02-01), McCormack

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