The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 24, 2012
Filed:
Oct. 16, 2009
Guenther Bergmann, Blaustein, DE;
Herbert Knotz, Erbach, DE;
Peter Kolb, Illertissen, DE;
Armin Prohaska, Ulm-Ermingen, DE;
Holger Vogelmann, Schwendi, DE;
Guenther Bergmann, Blaustein, DE;
Herbert Knotz, Erbach, DE;
Peter Kolb, Illertissen, DE;
Armin Prohaska, Ulm-Ermingen, DE;
Holger Vogelmann, Schwendi, DE;
Atmel Corporation, San Jose, CA (US);
Abstract
A circuit and method for operating a circuit with a terminal for connecting a photodiode to output an output current dependent on the photocurrent of the photodiode, with a resistance device for generating a voltage drop dependent on a photocurrent of the photodiode, with a control loop connected to the resistance device for generating the output current dependent on the photocurrent, with a switching means connected to the terminal with first switch positions for a first operating mode for operating the photodiode in the reversed bias and with second switch positions for a second operating mode for operating the photodiode in the photovoltaic mode, wherein in the first operating mode in the first switch positions of the switching means, the resistance device and the control loop are bridged and/or are not connected, and in the second operating mode in the second switch positions of the switching means, the terminal is connected to the resistance device.