Optically triggered linear bilateral switch

Details Optically triggered linear bilateral switch Optically triggered linear bilateral switch

1980-05-30

1981-12-01

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Signal isolator

307311, 307571, G02B 2700, H03K 17687

Patent

active

043038310

ABSTRACT:
A bilateral switch uses a single photodiode array connected to the gate electrode of a voltage controlled device such as a field effect transistor or an antiparallel connected gated diode switch pair and, through appropriate diodes, to the drain and source electrodes of the field effect transistor or to the anode and cathode of the gated diode switch to control the current through the voltage controlled device. The photodiode array is optically coupled to a light-emitting diode located in an electrical input circuit.

REFERENCES:
patent: 3321631 (1967-05-01), Biard et al.
patent: 3532899 (1970-10-01), Huth et al.
patent: 3995174 (1976-11-01), Zrudsky
patent: 4227098 (1980-10-01), Brown et al.
Shackle et al., "THPM 14.1: A 500 V Monolithic Bidirectional 2.times.2 Crosspoint Array", 1980 IEEE International Solid State Circuits Conference, 2-14-80, pp. 170-171.

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