Circuit for detecting the position of several bipolar contactors

Details Circuit for detecting the position of several bipolar contactors Circuit for detecting the position of several bipolar contactors

1994-08-11

1996-04-16

Wieder, Kenneth A.

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

324537, 324768, 340505, 340686, G01R 2708, G08B 2500

Patent

active

055086268

ABSTRACT:
The circuit of the present invention is able to detect and identify the position of several contactors.
Each contactor (1) is mounted in series with a resistor (2). The first contacts (A.sub.N) are interconnected. The same applies for the second contacts (B.sub.N) and the third points (C.sub.N) of the branches established. In addition, the third points (C.sub.N) are separated by a second resistor (6). The measuring of the voltage between the first and third points (A, C) makes it possible to detect and identify the open and closed contactors and in addition is able to detect a malfunction.
Application for detecting the position of the doors of a thrust reverser of a turbojet engine.

REFERENCES:
patent: 3550090 (1970-12-01), Baker, Jr. et al.
patent: 3821733 (1974-06-01), Reiss et al.
patent: 4359721 (1982-11-01), Galvin et al.
patent: 4441100 (1984-04-01), Galloway
patent: 4555695 (1985-11-01), Machida et al.

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