Hybrid circuit

Details Hybrid circuit Hybrid circuit

1981-06-29

1983-04-19

Rubinson, G. Z.

179170D, H04B 158

Patent

active

043806902

ABSTRACT:
A hybrid circuit, in which the differential output of an amplifier of the four-wire receive port having the differential output of low output impedance is connected to a series-connected circuit composed of a variable impedance circuit and the primary winding of a transformer connected to the two-wire port of the hybrid circuit, and in which the input of an amplifier of the four-wire transmit port of the hybrid circuit having a high input impedance is connected to the node connection of the variable impedance circuit and the primary winding of the transformer. In the case where the impedances of the variable impedance circuit and the transformer are in a state of mutual equilibrium, the neutral point potential of the amplifier of the four-wire receive port is applied as an input to the amplifier of the four-wire transmit port.

REFERENCES:
patent: 3973089 (1976-08-01), Puckette
patent: 4163878 (1979-08-01), Hashemi
patent: 4181824 (1980-01-01), Seidel
patent: 4203005 (1980-05-01), Fukuda et al.
patent: 4284859 (1981-08-01), Araseki

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