Switch utilizing solid-state relay

Details Switch utilizing solid-state relay Switch utilizing solid-state relay

1987-01-23

1988-05-03

Clawson, Jr., Joseph E.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

357 22, 357 238, 357 2314, 357 30, 357 39, 357 53, 357 86, 357 43, 307311, 307646, H01L 2978

Patent

active

047423803

ABSTRACT:
A solid-state relay is combined with a control circuit to form a switch which is bilateral and linear through the origin, can withstand large current or voltage surges, and can be toggled either electrically or optically. The relay portion comprises either a pair of or two subsets of DMOS transistors, and the pair of transistors or selected ones of each subset cooperate to form a pair of oppositely poled thyristors. The control circuit provides well regulated turn-on and turn-off of the relay and provides good immunity against high voltage transients on the switch's main terminals. The control circuit also serves to limit the maximum voltage that is applied to the gate oxides of the transistors.

REFERENCES:
patent: 3938176 (1976-02-01), Sloan
patent: 4001860 (1977-01-01), Cauge et al.
patent: 4199774 (1980-04-01), Plummer
patent: 4331884 (1982-05-01), Svedbers
patent: 4414560 (1983-11-01), Lidow
International Electron Devices Meeting Technical Digest, Dec. 1980, "A FET-Controlled Thyristor in SIPMOS Technology", pp. 79-82.
J. Ti Hanyi, International Electron Devices Mtg. Tech. Digest, Dec. 1980, "Functional Integration of Power MOS and Bipolar Devices", pp. 75-78.
ISSCC, Feb. 1978, "A MOS-Controlled Triac Device", pp. 222-223.
IEEE Transactions on Electron Devices, vol. ED27, No. 2, Feb. 1980, "Insulated-Gate Planar Thyristors", pp. 380-394.

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