Transformerless hybrid circuit

Details Transformerless hybrid circuit Transformerless hybrid circuit

H - Electricity

04

M

379/66

H04M 7/00 (2006.01) H04B 1/58 (2006.01) H04M 1/58 (2006.01)

Patent

CA 1171565

ABSTRACT OF THE INVENTION The series arrangement of a current source controlled by a four-wire line in the incoming direction and a first resistor is connected in parallel to a two-wire line terminating shunt arm formed by a second resistor of double the value and a residual impedance, so that the associated two-wire line is terminated in reflection-free fashion. Voltages dependent upon the transmitted signal current which are equal in value but opposed in phase appear across the first and second resistors and in addition a voltage which is dependent upon the received signal current appears across the second resistor; in the outgoing direction the four-wire line is subject to a voltage intermed- iate value which is independent of the transmitted signal. Instead of a four- wire line, separate go and return channels of any form may be utilized.

377972

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