Electro-optical solid-state SPDT relay switch

Details Electro-optical solid-state SPDT relay switch Electro-optical solid-state SPDT relay switch

1983-02-11

1985-06-04

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307252B, 307311, H03K 1760, H03K 342

Patent

active

045216932

ABSTRACT:
An optically-coupled/isolated electronic single pole double throw power relay switch with few parts routes a.c. power to one of two loads in response to a low-level control signal. Two gate-controlled bidirectional thyristors (Triacs) are made to switch in a complementary mode by gate-controlling one Triac from a light-sensitive element, and gate-controlling the other Triac from a gating circuit responsive to voltage appearing across the first Triac in its OFF state.

REFERENCES:
patent: 3484623 (1969-12-01), Cain
patent: 3493783 (1970-02-01), Till
patent: 3517217 (1970-06-01), Sleater et al.
patent: 3900763 (1975-08-01), Turner
patent: 4087848 (1978-05-01), Hyink et al.

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