Automatic control circuit for a current translating device

Details Automatic control circuit for a current translating device Automatic control circuit for a current translating device

1983-05-20

1985-07-16

Wong, Peter S.

Electricity: power supply or regulation systems

Output level responsive

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

323902, G05F 144

Patent

active

045299285

ABSTRACT:
A circuit is described for automatically controlling an input current to a current translating device having an output current functionally related to the input current. A sensing circuit detects the output current of the device and produces a control signal representative of the output current. The control signal is coupled to a control circuit that varies the input current to the device. In the preferred embodiment of the invention, the dynamic range of the sensing circuit is increased by coupling a constant current generator to its input.

REFERENCES:
patent: 4251743 (1981-02-01), Hareyama
patent: 4280091 (1981-07-01), Hiltner
Hyland, R. N., "Constant Current Circuit", IBM Technical Disclosure Bulletin, vol. 13, No. 8, Jan. 1971, pp. 2367-2368.
Beistle, R. G., "Noise-Rejecting Phototransistor Circuits in Optical-Sensing Applications", IBM Technical Discl. Bulletin, vol. 19, No. 8, Jan. 1977, pp. 2903-2904.
Gianos, P. T., "Threshold Detector for Optical Transducers", IBM Tech. Discl. Bulletin, vol. 19, No. 10, Mar. 1977, pp. 3661-3662.

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