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:
Nov. 03, 2020
Filed:
Oct. 30, 2018
Danfoss Mobile Electrification Oy, Lappeenranta, FI;
Antti Tarkiainen, Lappeenranta, FI;
Tero Järveläinen, Lappeenranta, FI;
Danfoss Mobile Electrification Oy, Lappeenranta, FI;
Abstract
A power converter for an electric power system comprises a switching circuit () for supplying, in a first operating mode of the power converter, voltages for driving a rotating electric machine. The power converter comprises a contactor system () and a controller () for using, in a second operating mode of the power converter, the switching circuit and at least one of windings () of the rotating electric machine as a voltage-decreasing direct voltage converter between direct voltage terminals of the power converter. Therefore, the switching circuit of the power converter can be utilized both for driving the rotating electric machine and, for example, for charging a battery element connected to a direct voltage terminal of the power converter.