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. 17, 2008
Filed:
Dec. 08, 2004
Applicants:
Pietro DE Filippis, Milan, IT;
Ralf Hochhausen, Ingolstadt, DE;
Jörg Seyfarth, Regensburg, DE;
Inventors:
Assignee:
BSH Bosch und Siemens Hausgeraete GmbH, Munich, DE;
Primary Examiner:
Int. Cl.
CPC ...
H03D 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A three-phase direct-current motor is controlled by cyclically repeating three first switching states. In each of the three first switching states, one of the three phases of the direct-current motor is periodically switched over between a first and a second input voltage, whereas the two other phases are continuously connected to the first input voltage.