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. 01, 2004
Filed:
Jan. 25, 2002
Applicant:
Inventors:
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 7/06 ; H02P 1/100 ; H02P 9/00 ;
U.S. Cl.
CPC ...
H02H 7/06 ; H02P 1/100 ; H02P 9/00 ;
Abstract
A method for operating an electrical machine ( ) for the production of electrical power ( ) includes an excitation winding ( ) and a stator winding ( ). A converter configuration ( ), e.g., a pulse-width modulation inverter, is located downstream from the electrical machine ( ). In the lower speed range, the output of electrical power ( ) takes place along the torque line ( ) independently of the number of coils w , w in a stator winding ( ). In the upper speed range, the output of electrical power ( ) takes place via a stator winding ( ) having a small number of coils w .