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:
Feb. 02, 2016
Filed:
Jul. 26, 2012
Bernd Dittmer, Ludwigsburg, DE;
Edwin Eberlein, Stuttgart, DE;
Jie GE, Stuttgart-Hausen, DE;
Bernhard Mader, Kernen, DE;
Christoph Van Booven, Markgroeningen-Unterriexingen, DE;
Andreas Mittag, Markgroeningen, DE;
Peter Eitner, Calw, DE;
Bernd Eckert, Vaihingen an der Enz, DE;
Bernd Dittmer, Ludwigsburg, DE;
Edwin Eberlein, Stuttgart, DE;
Jie Ge, Stuttgart-Hausen, DE;
Bernhard Mader, Kernen, DE;
Christoph Van Booven, Markgroeningen-Unterriexingen, DE;
Andreas Mittag, Markgroeningen, DE;
Peter Eitner, Calw, DE;
Bernd Eckert, Vaihingen an der Enz, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a multi-stage charging device for a battery of a battery operated electrical motor. The multistage charging device comprises a buck converter, an intermediate circuit and a boost converter in order to generate a suitable direct charging current from a (one or three-phase) alternating current provided by a power connection. According to the invention, components of the electrical drive are used for the boost converter and the intermediate circuit: the electrical motor functions as an intermediate circuit and the drive converter functions as a boost converter. According to the invention, the coupling of the electrical motor to the network-side buck converter occurs so that at least half the charging current flows through at least one of the at least three coils of the electrical drive. The invention further relates to a corresponding method and to a corresponding use of the drive components.