Electrical transmission or interconnection systems – Switching systems – Switch actuation
Patent
1990-02-27
1992-09-15
Stephan, Steven L.
Electrical transmission or interconnection systems
Switching systems
Switch actuation
301117, 301139, H05B 3904
Patent
active
051480441
ABSTRACT:
A multiplex connector, which includes a first circuit for providing a reference voltage to a photoelectric comparator by means of a photoelectric operation so as to further control a charge/recharge-timer circuit; a second circuit comprising a pyroelectric infrared detector which is triggered by means of a change in ambient temperature for providing a signal through an amplifier circuit and a window-limited comparator to the charge/recharge-timer circuit for closing or opening a driving circuit to further control the load. Through full-wave rectification and current amplification, an electronic switching circuit is also provided to control the power supply to the load which is connected thereto in series.
REFERENCES:
patent: 3680047 (1972-07-01), Perlman
patent: 3820097 (1974-06-01), Larson
patent: 4305021 (1981-12-01), Schreiden
patent: 4450351 (1984-05-01), Fraden
patent: 4650982 (1987-03-01), Maile
patent: 4663521 (1987-05-01), Maile
patent: 4843283 (1989-06-01), Chen
patent: 4890093 (1989-12-01), Allison et al.
Dougherty Thomas M.
Stephan Steven L.
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