High-frequency optoelectric front-end

Details High-frequency optoelectric front-end High-frequency optoelectric front-end

1990-11-27

1992-02-25

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

307311, H01J 4014

Patent

active

050916416

ABSTRACT:
Optoelectric front-end comprising a photodiode which is not grounded and which drives a bipolar transistor acting as a feedback amplifier between the base and the emitter thereof, so that the d.c. arrangement of the transistor will cause no further noise to develop.

REFERENCES:
patent: 3557373 (1971-01-01), Hess
patent: 4197471 (1980-04-01), Lackey et al.
patent: 4306145 (1981-12-01), Hill
patent: 4818896 (1989-04-01), Ohmi et al.
patent: 4982082 (1991-01-01), Ottusch

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