Solid state relay

Details Solid state relay Solid state relay

1985-12-23

1987-04-14

Westin, Edward

Radiant energy

Photocells; circuits and apparatus

Signal isolator

250214SW, 307252B, 307311, H01J 4014

Patent

active

046581456

ABSTRACT:
A solid state relay includes a diode for emitting light, a photothyristor circuit responsive to the light from the diode for turning on and outputting a first output signal, the photothyristor circuit having two photothyristors connected to each other in parallel in an opposing direction and a triac circuit responsive to the photothyristor circuit for turning on and outputting a second output signal.

REFERENCES:
patent: 4309605 (1982-01-01), Okabe
patent: 4443712 (1984-04-01), Gokita

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