Detection circuit for maintaining constant signal transfer chara

Details Detection circuit for maintaining constant signal transfer chara Detection circuit for maintaining constant signal transfer chara

1992-08-10

1994-03-22

Messinger, Michael

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

250214B, 250214A, H01J 4014

Patent

active

052966976

ABSTRACT:
A variable impedence photodiode detector circuit for use in detecting signals in the infrared (IR) includes circuitry to maintain a constant reverse bias voltage on the photodetector to maintain the best signal transfer characteristics regarding frequency response, analog bandwidth, sensitivity, output current range, and signal-to-noise ratio over an operating range from total darkness to maximum daylight. A series current source varies the current to the photodiode in response to variations in detector impedence.

REFERENCES:
patent: 3576452 (1971-04-01), Smith
patent: 3770968 (1973-11-01), Hession et al.
patent: 4355237 (1982-10-01), Harris, Jr.
patent: 4805236 (1989-02-01), Urala
patent: 4808810 (1989-02-01), Van Doorn
patent: 4935618 (1990-06-01), Naito
patent: 4947032 (1990-08-01), Janssens
patent: 5013904 (1991-05-01), Muro
patent: 5111324 (1992-05-01), Jahromi
patent: 5142401 (1992-08-01), Shen et al.
patent: 5166819 (1992-11-01), Eschel

Affiliated with

Also associated with

Rating

Detection circuit for maintaining constant signal transfer chara does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Detection circuit for maintaining constant signal transfer chara, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detection circuit for maintaining constant signal transfer chara will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-438652