Impulse activated time delay self-restoring switch

Details Impulse activated time delay self-restoring switch Impulse activated time delay self-restoring switch

1979-08-09

1982-04-06

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307311, 307594, 307597, 1791753F, H03K 17687, H03K 1794

Patent

active

043237991

ABSTRACT:
An impulse activated switch having a controlled time-delayed self-restoration from its complementary state to its initial state is described. Upon illumination, a photodiode array connected to the gate and source electrodes of a field effect transistor produces a voltage which changes the current conduction state of the field effect transistor to its complementary state and charges a capacitance. The capacitance forms part of an RC timing network which controls the time required for self-restoration. The switch may be normally on or off and unilateral or bilateral.

REFERENCES:
patent: 3860769 (1975-01-01), PacHynski, Jr.
patent: 3867588 (1975-02-01), Pickens et al.
patent: 3935481 (1976-01-01), Uchikawa
patent: 4054759 (1977-10-01), McGrath et al.
patent: 4227098 (1980-10-01), Brown et al.
R. L. Peek, Jr. "Principles of Slow Release Relay Design", The Bell System Technical Journal, Jan., 1954, pp. 187-217.

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