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:
Dec. 01, 2015
Filed:
Sep. 04, 2014
Infineon Technologies Ag, Neubiberg, DE (US);
Mario Motz, Wernberg, AT;
Manfred Bresch, Villach, AT;
Infineon Technologies AG, Neubiberg, DE;
Abstract
The present disclosure relate to a sensor system having a low offset error. In some embodiments, the sensor system comprises a sensor configured to generate a sensor signal, which is provided to a main signal path having a first chopping correction circuit and a second chopping correction circuit. The first and second chopping correction circuit chop the sensor signal at first and second frequencies to reduce offset errors, but in doing so generate first and second chopping ripple errors. A first digital offset feedback loop generates a first compensation signal, which is fed back into the main signal path to mitigate the first chopping ripple error. A second digital offset feedback loop generates a second compensation signal, which is fed back into the main signal path to mitigate the second chopping ripple error.