Solid state triggering circuit

Details Solid state triggering circuit Solid state triggering circuit

1979-09-20

1981-10-13

Miller, Jr., Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307278, 307311, H03K 3284, H03K 342

Patent

active

042950600

ABSTRACT:
A solid state electronic triggering circuit is provided having a light sensitive circuit for sensing the occurrence of light interruption events, and employing a plurality of integrated circuits interconnected in a monostable switching mode, each to provide an output pulse signal for a predetermined time period determined by an RC charging circuit. An RC time delay circuit is serially connected with the monostable circuits to provide a predetermined time delay between light interruption and the output of a triggering signal from a final stage monostable circuit. An initial monostable circuit is used to register the light interruption event, and the final monostable circuit is used to provide a short duration triggering pulse suitable to trigger an SCR load gate. An additional monostable circuit is employed as an inhibitor circuit imposed on the initial monostable circuit to prevent registration of a light interruption event during any occurrence of power supply interruption.

REFERENCES:
patent: 3175152 (1965-03-01), Shafer
patent: 4041331 (1977-08-01), Westerman et al.
patent: 4197471 (1980-04-01), Lackey et al.

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