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:
Dec. 30, 2008
Filed:
Dec. 22, 2003
Tord Rickard Andersson, Tyreso, SE;
Carl Mikael Forborgen, Tyreso, SE;
Oliver Gallas, Johanneshov, SE;
Ulf Ingemar Karlsson, Tyreso, SE;
Carl-erik Malmstrom, Tyreso, SE;
Tord Rickard Andersson, Tyreso, SE;
Carl Mikael Forborgen, Tyreso, SE;
Oliver Gallas, Johanneshov, SE;
Ulf Ingemar Karlsson, Tyreso, SE;
Carl-Erik Malmstrom, Tyreso, SE;
Danaher Motion Stockholm AB, Stockholm, SE;
Abstract
An inverter type drive unit for feeding AC electric power of variable parameters to an electric motor has an electronic control section, and a power converting and output section which includes one or more identical power modules, each forming a complete 3-phase output stage. The power modules are arranged side-by-side in a multiplying direction and are clamped by retaining devices to a cooling structure. The power modules are connected in parallel to DC input terminals and to AC output terminals via conductive sheets which are insulated from each other. The DC connected conductive sheets cover substantially the entire physical surface area covered by the power modules so as to accomplish an even, simultaneous and low impedance DC current supply to all power modules.