Current mirror circuit

Details Current mirror circuit Current mirror circuit

1982-05-03

1984-11-06

Beha, Jr., William H.

Electricity: power supply or regulation systems

Self-regulating

Using a three or more terminal semiconductive device as the...

179 18FA, 179 70, 179 77, G05F 308

Patent

active

044814631

ABSTRACT:
A current mirror circuit for weighting a plurality of input currents and for forming their sum, the weighting coefficients of the input currents each being determined by the ratio between the value of first resistors present between an input terminal and a power supply terminal, and the value of a second resistor. Such circuits are suitable for use in subscriber line interface circuits in which the weighted sum is to be formed of the currents entering and leaving the subscriber's line with a precise adjustment of the weighting coefficients.

REFERENCES:
patent: 3588672 (1971-06-01), Wilson
patent: 3911353 (1975-10-01), van de Plassche
patent: 4317082 (1982-02-01), Gross

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