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. 02, 2008
Filed:
Sep. 28, 2007
Applicant:
Alain Lacaze, Essert, FR;
Inventor:
Alain Lacaze, Essert, FR;
Assignee:
Alstom Technology Ltd, Baden, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 5/27 (2006.01); H02J 1/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A matrix converter for converting a polyphase alternating current into a desired alternating output current includes at least two stages; a plurality of controllable bidirectional switches, converts m phases of the polyphase alternating current into alternating output current with n (n<m) phases of a load; and a controllable bidirectional switch controlling each phase of the polyphase alternating current in at least one stage of the converter.