Radiant energy – Photocells; circuits and apparatus – Signal isolator
Patent
1984-09-19
1987-01-20
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Signal isolator
455602, G02B 2700
Patent
active
046381678
ABSTRACT:
Insulator circuit comprising an optoelectronic coupler consisting of a photoemitting diode positioned facing the photodetector, a photoemitting diode polarizing circuit, a signal input connected to the photoemitting diode and an output amplifier connected to the photodetector, wherein the photoemitting diode polarizing circuit comprises a high frequency power supply connected to a high frequency transformer and a rectifier circuit inserted between said transformer and the photoemitting diode.
REFERENCES:
patent: 3333208 (1967-07-01), Hudak
patent: 3430054 (1969-02-01), Klein
patent: 3810034 (1974-05-01), Brunsch
patent: 3913001 (1975-10-01), Kayama
patent: 4054834 (1977-10-01), Boirat et al.
patent: 4386371 (1983-05-01), George
Electronics Engineering, "Faster Optically-Coupled Isolator is Compatible with TTL Interfaces", by P. Turner, vol. 46, No. 556, pp. 46-48, (Jun. 1974).
Laure Christian
Leseure Jean-Yves
Pierre Charbonnel
Etablissement Public de Diffusion Dit "Teledifusion de France"
Leseure Jean-Yves
Meller Michael N.
Nelms David C.
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