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.

Date of Patent:
Oct. 29, 2019

Filed:

Feb. 15, 2017
Applicant:

Robert Bosch Gmbh, Stuttgart, DE;

Inventors:

Stefan Walz, Schwäbisch Gmünd, DE;

Andreas Speinle, Elzach, DE;

Markus Weber, Göppingen, DE;

Sylvia Wiedemann, Ludwigsburg, DE;

Panagiotis Kosioris, Urbach, DE;

Dirk Lamprecht, Stuttgart-Rohr, DE;

Alexander Krautstrunk, Durlangen, DE;

Assignee:

Robert Bosch GmbH, Stuttgart, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 7/539 (2006.01); H02M 7/5387 (2007.01); H02M 7/538 (2007.01); B62D 5/04 (2006.01); H03L 7/06 (2006.01);
U.S. Cl.
CPC ...
H02M 7/53875 (2013.01); B62D 5/046 (2013.01); H02M 7/53803 (2013.01); H03L 7/06 (2013.01);
Abstract

A switch device for an electric motor includes at least one half-bridge having two semiconductor switches to energize at least one phase of the electric motor on demand. The switch device further includes a drive device assigned to the semiconductor switches and configured to actuate the semiconductor switches in accordance with an activation signal. The driver device includes an oscillator to generate an operating clock frequency, an apparatus to receive a synchronization signal, and a device to adjust the operating clock frequency in accordance with the synchronization signal.


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