Radiant energy – Photocells; circuits and apparatus – Signal isolator
Patent
1989-09-26
1991-05-21
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Signal isolator
307311, G02B 2700
Patent
active
050177931
ABSTRACT:
An optically driven signal generator utilizes optical switches having a common output port and input ports alternately coupled to first and second potentials of opposite polarities. Optical pulses, with interpulse periods commensurate with a desired output frequency, sequentially operate the switches so that electrical signals of opposite polarities are alternately coupled to a common output port in a manner to establish a continuous electrical signal at a frequency that is commensurate with the interpulse periods.
REFERENCES:
patent: 3171964 (1965-03-01), Terlet
patent: 3353116 (1967-11-01), Trimble
Gerdt David W.
Gilligan Lawrence H.
Halsey James D.
Riggs Robert F.
Levine Seymour
Nelms David C.
Sperry Marine Inc.
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