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:
Mar. 05, 2024
Filed:
Jan. 23, 2020
Applicant:
Sew-eurodrive Gmbh & Co. KG, Bruchsal, DE;
Inventors:
Norbert Hettel, Au am Rhein, DE;
Alexander Kolbert, Weingarten, DE;
Assignee:
SEW-EURODRIVE GMBH & CO. KG, Bruchsal, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 3/22 (2006.01);
U.S. Cl.
CPC ...
H02P 3/22 (2013.01);
Abstract
In a drive system having an inverter and electric motor, and a method for operating a drive system, the electric motor is fed from the AC-voltage-side terminal of the inverter, a first series circuit, which includes a brake resistor and a first controllable semiconductor switch, is connected at the DC-voltage-side terminal of the inverter, and a second series circuit, which includes an impedance and a controllable second semiconductor switch, is connected in parallel with the first series circuit, e.g., in parallel with the DC-voltage-side terminal of the inverter.