Biasing voltage cancellation circuit having a plurality of switc

Details Biasing voltage cancellation circuit having a plurality of switc Biasing voltage cancellation circuit having a plurality of switc

1995-05-15

1996-10-01

Le, Que T.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

250214A, 330138, H01J 4014

Patent

active

055612881

ABSTRACT:
A highly sensitive optical receiver where one terminal of the photodiode of the receiver is connected to a negatively biased amplifier while the other terminal of photodetector is connected to a positively biased amplifier, where such connections automatically bias the photodiode and use the current from both terminals (anode and cathode) of the photodiode. This invention also provides an optical receiver which has a DC cancellation circuit to eliminate the biasing voltages in the final output signal.

REFERENCES:
patent: 5168153 (1992-12-01), Ikeda
patent: 5198660 (1993-03-01), Yokoyama et al.

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