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:
Jun. 23, 2009
Filed:
Apr. 14, 2005
Applicants:
Bernd Wolff, Hennef, DE;
Guido Voellmar, Cologne, DE;
Inventors:
Bernd Wolff, Hennef, DE;
Guido Voellmar, Cologne, DE;
Assignee:
Moeller GmbH, Bonn, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 6/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A mechanical-electronic position sensor in which the wiper voltage of a potentiometer actuated by a plunger is measured, processed by a microcontroller, and is available as an analog output signal via an output stage. In the event that watchdog signals fail to appear because of a malfunction of the microcontroller, two monitoring stages deactivate the output stage. The monitoring stages themselves are tested by regularly interrupting the watchdog signals for a short time while the output stage is maintained active.