Optical receiver with critical damping resistor

Details Optical receiver with critical damping resistor Optical receiver with critical damping resistor

1991-11-08

1993-05-18

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

359189, H01J 4014

Patent

active

052123782

ABSTRACT:
An optical receiver includes a light-receiving element, a bias circuit, an output circuit, and a damping resistor. The light-receiving element converts an optical signal into an electrical signal. The bias circuit applies a DC bias voltage to the light-receiving element. The output circuit outputs, from an output terminal, a voltage corresponding to an optical current generated by the light-receiving element. The damping resistor is connected between the light-receiving element and the output terminal in the output circuit and has a resistance set to serve as a critical damping condition in combination with a junction capacitance and a lead inductance of the light-receiving element.

REFERENCES:
patent: 3593038 (1971-07-01), Hylten-Cavallius
patent: 3805065 (1974-04-01), Williams
patent: 5029240 (1991-07-01), de La Chapelle et al.

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