Solid state relay with optically controlled shunt and series enh

Details Solid state relay with optically controlled shunt and series enh Solid state relay with optically controlled shunt and series enh

1988-06-17

1989-09-05

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Signal isolator

307311, G02B 2700

Patent

active

048641260

ABSTRACT:
A solid state relay uses an optically controlled shunt and series enhancement circuit between a photodiode array and an output device to provide enhanced turn-off and transient immunity characteristics. A Faraday shield may be used to cover optically active components and to provide protection against false turn-on and turn-off caused by the transients.

REFERENCES:
patent: 4390790 (1983-06-01), Rodriguez
patent: 4564770 (1986-01-01), Sherman et al.
patent: 4754175 (1988-06-01), Kobayashi et al.
patent: 4777387 (1988-10-01), Collins
patent: 4804866 (1989-02-01), Akiyama
HEWLETT-PACKARD COMPANY, Optoelectronics/Fiber Optics Applications Manual, Second Ed., 1981, pp. 3.5-3.9.

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