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. 25, 2019
Filed:
Oct. 09, 2015
Robert Bosch Gmbh, Stuttgart, DE;
Edwin Eberlein, Stuttgart, DE;
Manfred Kirschner, Stuttgart, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to an apparatus () for operating a resolver (), which has at least one receiver winding () or at least one excitation winding (), which are/can be associated with a rotatably mounted shaft (), in particular a rotor shaft of an electric motor, said apparatus also having a device () which determines an angular position of the shaft () as a function of an induced voltage detected by the excitation winding () by means of a desired excitation signal (SES) with a predeterminable frequency and amplitude and by the receiver winding (). According to the invention, means () for limiting an electrical voltage on the excitation winding () are associated with the excitation winding (), wherein the means () limit the voltage only above a maximum normal voltage in only one current direction.