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:
Feb. 17, 2009
Filed:
Mar. 25, 2005
Applicants:
Minghua Fu, Plano, TX (US);
Zhenxue Xu, Murphy, TX (US);
George Ulaner, Dallas, TX (US);
Inventors:
Assignee:
Lineage Power Corporation, Mesquite, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a modulation controller for use with a three phase converter. In one embodiment, the modulation controller includes a three phase modulator configured to provide vector control signals for the three phase converter that generate a common mode voltage. Additionally, the modulation controller also includes a transition modifier coupled to the three phase modulator and configured to provide a shaping function for the vector control signals that extends a transition period of the common mode voltage.