Photo detector methods to reduce the disabling effects of...

Details Photo detector methods to reduce the disabling effects of... Photo detector methods to reduce the disabling effects of...

2005-03-08

2005-03-08

Abraham, Fetsum (Department: 2826)

Active solid-state devices (e.g., transistors, solid-state diode

Responsive to non-electrical signal

Electromagnetic or particle radiation

C257S232000, C257S233000, C257S234000, C257S435000, C257S444000, C438S048000, C438S069000, C438S070000

Reexamination Certificate

active

06864555

ABSTRACT:
This invention discloses the several means by which transient noise due to capacitance related displacement current can be excluded from the optical signal coming from a silicon detector used in opto-couplers. The exclusion of such noise permits a high degree of detector sensitivity which permits the use of low efficiency silicon based LEDs for opto-coupler applications.

REFERENCES:
patent: 4754312 (1988-06-01), Lanmger et al.
patent: 4980546 (1990-12-01), Berger

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