AC power switching device with non-volatile memory unit

Details AC power switching device with non-volatile memory unit AC power switching device with non-volatile memory unit

1989-06-23

1991-03-26

Pellinen, A. D.

Electrical transmission or interconnection systems

Switching systems

Switch actuation

307112, 323299, 365228, G05F 304

Patent

active

050031929

ABSTRACT:
A solid state semiconductor power switch for controlling the application of AC power to a load wherein the power switch employs momentary ON/OFF switches for activating the power switch, and wherein additional circuit means is provided to preserve the ON/OFF condition or state of the power switch during a power-down situation such that upon restoration of the AC power the power switch can be caused to assume the same ON or OFF state it was in just prior to the power-down situation.

REFERENCES:
patent: 4375601 (1983-03-01), Van Vliet
patent: 4541073 (1985-09-01), Brice et al.
patent: 4563592 (1986-01-01), Yuhasz et al.
patent: 4751401 (1988-06-01), Beigel et al.

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