Operational amplifier hybrid system

Details Operational amplifier hybrid system Operational amplifier hybrid system

1978-02-27

1980-03-11

Konick, Bernard

179 81B, 179170R, H04B 158

Patent

active

041929780

ABSTRACT:
This hybrid circuit utilizes two amplifiers such as operational amplifiers without transformers. A bridge arrangement is used in which there are four impedances, the line being one impedance. One amplifier is the second amplifier which is connected across two points of the bridge as a differential amplifier. The other amplifier is the first amplifier which is connected across the other two points of the bridge. One wire of the line acts as a common point for the bridge and the amplifier system. The bridge is a balanced configuration.

REFERENCES:
patent: 2946861 (1960-07-01), Chen
patent: 3745261 (1973-07-01), Friedman
patent: 3955053 (1976-05-01), Picard
patent: 3974344 (1976-08-01), Mersich
patent: 4081622 (1978-03-01), Clark et al.
patent: 4113996 (1978-09-01), Sanderson

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