Circuit arrangement for a photodiode

Details Circuit arrangement for a photodiode Circuit arrangement for a photodiode

2006-02-14

2006-02-14

Pyo, Kevin (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C250S214100, C327S514000

Reexamination Certificate

active

06998597

ABSTRACT:
A circuit arrangement (1) for a photodiode (2) has a microprocessor (3) with an output (4) which emits a pulse-width-modulated voltage signal via a low-pass filter (5) to the cathode of the photodiode (2). The voltage which is applied to the cathode of the photodiode (2) is detected by an input (12) of the microprocessor (3) and is regulated at a nominal value by adjusting the voltage signal at the output (4) of the microprocessor (3). The circuit arrangement (1) has a particular wide dynamic measurement range.

REFERENCES:
patent: 5023951 (1991-06-01), Kahn
patent: 5966159 (1999-10-01), Ogasawara

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