Offset compensation circuit for a monitoring photodiode

Details Offset compensation circuit for a monitoring photodiode Offset compensation circuit for a monitoring photodiode

2007-04-24

2007-04-24

Nguyen, Patricia (Department: 2817)

Amplifiers

With periodic switching input-output

C330S254000, C330S284000

Reexamination Certificate

active

11076467

ABSTRACT:
Disclosed is a circuit for compensating for an offset voltage of a monitoring photodiode. After the offset voltage is measured in a photodiode test, current source and offset resistors are added according to the measured resistances, thereby compensating for the offset voltage.

REFERENCES:
patent: 5233309 (1993-08-01), Spitalny et al.
patent: 5515047 (1996-05-01), Yamakido et al.
patent: 6175278 (2001-01-01), Hasegawa
patent: 6211726 (2001-04-01), Daun-Lindberg et al.
patent: 6310518 (2001-10-01), Swanson
patent: 7068108 (2006-06-01), Xu et al.
Patent Abstracts of Japan for 2004120311 A published on Apr. 15, 2004.

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