Electronic time switch

Details Electronic time switch Electronic time switch

1983-08-09

1985-06-11

Pellinen, A. D.

Electrical transmission or interconnection systems

Switching systems

Switch actuation

307592, 307597, H01H 4304

Patent

active

045231036

ABSTRACT:
An electronic time switch for the time-limited actuation of appliances which are supplied with alternating current, whose load component is actuated by an electronic control element, and which includes terminals which supply the load component as well as the control element. A first storage element is charged during the inoperative condition through a rectifier, wherein the first storage element charges a second storage element upon initiation of load operation through the intermediary of a pushbutton with switching functions, through a recharging branch having a current limiting resistor. The recharging branch consists of a parallel circuit including an ohmic resistor and a threshold rectifier.

REFERENCES:
patent: 3932803 (1976-01-01), Buck
patent: 4204128 (1980-05-01), Kruper
patent: 4415943 (1983-11-01), Wortman
patent: 4420693 (1983-12-01), Becker et al.

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