Isolated current mirror with optical insulator generating feedba

Details Isolated current mirror with optical insulator generating feedba Isolated current mirror with optical insulator generating feedba

1992-03-13

1993-02-23

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Signal isolator

307311, G02B 2700, H03K 342

Patent

active

051893070

ABSTRACT:
An optically isolated current mirror provides an isolated output signal as a function of an input signal. A first optical isolator generates an isolated control signal as a function of the input signal. An amplifier is connected in a voltage follower configuration which supplies the output signal as a function of the control signal and a feedback signal. A second optical isolator generates the feedback signal as a function of the output signal.

REFERENCES:
patent: 4417099 (1983-11-01), Pierce
patent: 4539480 (1985-09-01), Artinano et al.
patent: 4596048 (1986-06-01), Dunki et al.
patent: 4652764 (1987-03-01), Nagano
patent: 4739174 (1988-04-01), Nagano
patent: 4825351 (1989-04-01), Uesugi
patent: 4902901 (1990-02-01), Pernyeszi
patent: 5089948 (1992-02-01), Brown et al.
Dionics, Inc. Data Book, ISO-Gate Device Applications (Mar. 1989) (Isolation Amplifier shown in lower right hand corner of page).

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