Current sensing circuit

Details Current sensing circuit Current sensing circuit

1976-04-08

1977-11-08

Miller, Jr., Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307229, 330288, 330296, H03K 1700

Patent

active

040577430

ABSTRACT:
A current mirror amplifier (CMA) and another current amplifier are connected in a degenerative current feedback loop with a point therein which point exhibits a low a-c impedance with respect to a-c ground and provides for sensing signal current applied thereto from an impedance element. The CMA has an input terminal connected to this sensing point, a common terminal connected to a-c ground and an output terminal connected to a constant current source load. The other current amplifier has input and common terminals connected to the CMA output terminal and to the sensing point, respectively, and has an output terminal from which sensed signal current is available.

REFERENCES:
patent: 3697882 (1972-10-01), Plassche
patent: 3868580 (1975-02-01), Battjes
patent: 3996462 (1976-12-01), Fletcher et al.

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