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. 28, 2022
Filed:
Mar. 15, 2019
Schmidhauser Ag, Romanshorn, CH;
Dirk Schekulin, Gais, CH;
Schmidhauser AG, Romanshorn, CH;
Abstract
A filter unit is intended to be connected between an inverter and an electric motor. The filter unit includes: a number of phase connections for connecting to corresponding phase connections of the inverter; a first DC link connection for connecting to a first DC link connection on the inverter and a second DC link connection for connecting to a second DC link connection on the inverter; a number of motor connections for connecting to corresponding connections on the electric motor; a number of filter elements for reducing a rate of voltage rise at the motor connections of the filter unit, filter element is connected between corresponding phase connections of the filter unit and corresponding motor connections of the filter unit; and a coupling unit, which couples the filter elements capacitively with the first DC link connection and the second DC link connection of the filter unit.