Control circuit for providing time selected application of A.C.

Details Control circuit for providing time selected application of A.C. Control circuit for providing time selected application of A.C.

1977-07-25

1979-03-20

Rubinson, Gene Z.

Electrical transmission or interconnection systems

Plural supply circuits or sources

58 23R, 307 66, 307141, 340124, H01H 4300

Patent

active

041456173

ABSTRACT:
A solid-state programmable control circuit provides multiple time selected application of A.C. power to one or more utilization circuits or devices. The control circuit uses a crystal controlled time base generator which is synchronized to commercial A.C. power. Stand-by battery power is provided to maintain timing when A.C. power is lost. A time display plug-in module is used with the circuit for setting the time for the control circuit. Programming can be done at a point remote from the control circuit.

REFERENCES:
patent: 3394674 (1968-07-01), Downing
patent: 3400366 (1968-09-01), Downing
patent: 3456123 (1969-07-01), Pihl
patent: 3733810 (1973-05-01), Girard
patent: 4020358 (1977-04-01), Wyland
patent: 4023343 (1977-05-01), Martinet
patent: 4040247 (1977-08-01), Haydon

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