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:
Jul. 25, 2017
Filed:
Feb. 23, 2016
Denso Corporation, Kariya, Aichi-pref., JP;
Yosuke Asako, Kariya, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A resolver abnormality detection apparatus for a resolver having first and second secondary windings includes a first resistor section including a first pull-up resistor for pulling up the first secondary winding, a first pull-down resistor for pulling down the first secondary winding, a second resistor section including a second pull-up resistor for pulling up the second secondary winding and a second pull-down resistor for pulling down the second secondary winding, and first and second differential input sections connected across the first secondary winding and across the second secondary winding, respectively. The resolver abnormality detection apparatus detects presence of an abnormality in each of the first and second secondary windings based on outputs of the first and second differential input sections, a DC voltage between the first resistor section and the first differential input section and a DC voltage between the second resistor section and the second differential input section.