Radiant energy – Photocells; circuits and apparatus – Signal isolator
Patent
1981-09-24
1983-12-27
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Signal isolator
307311, G02B 2700, H03K 17687
Patent
active
044233302
ABSTRACT:
A normally OFF linear bilateral switch using two VMOS FETs is described. The conduction state of the two VMOS FETs is controlled by a photodiode array optically coupled to a light emitting diode. A break-before-make switch may be constructed using this switch together with a normally ON JFET.
REFERENCES:
patent: 3321631 (1967-05-01), Beard et al.
patent: 4303831 (1981-12-01), El Hamamsy
patent: 4307298 (1981-12-01), El Hamamsy et al.
Bell Telephone Laboratories Incorporated
Brophy Jere Jon
Laumann Richard D.
Nelms David C.
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