Detection circuit for detecting a state of a control system with

Details Detection circuit for detecting a state of a control system with Detection circuit for detecting a state of a control system with

1994-09-06

1996-01-30

Wong, Peter S.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

327319, 327327, H03K 1908

Patent

active

054883245

ABSTRACT:
In a detection circuit, a voltage-conversion circuit is supplied with a first voltage signal indicative of the state of an object circuit and produces an output current in response thereto, a detection circuit is supplied with a second voltage signal and detects the state of the object circuit in response thereto, and a clamping circuit, having an input terminal, is supplied at the input terminal thereof with the output current of the voltage-current conversion circuit and clamps the voltage at the input terminal thereof, and thus the output voltage of the voltage-current conversion circuit, at a predetermined level. The clamping circuit further produces the second voltage signal, which is supplied to the detection circuit, in response to the output current of the voltage-current conversion circuit and such that the second voltage signal has a magnitude proportional to the first voltage signal.

REFERENCES:
patent: 4147940 (1979-04-01), Beydler et al.
patent: 4244050 (1981-01-01), Weber et al.
patent: 4672238 (1987-06-01), Nemoto
patent: 4845379 (1989-07-01), Carlsten
patent: 5120995 (1992-06-01), Abdi
patent: 5166549 (1992-11-01), DeDoncker
Patent Abstracts of Japan, vol. 7, No. 140 (E-182), Jun. 18, 1983 & JP-A-58 054662 (Fujitsu K.K.) Mar. 31, 1983.

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