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. 12, 2002
Filed:
Jul. 25, 2000
Applicant:
Inventors:
Assignee:
The University of Hong Kong, Hong Kong, HK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/12 ;
U.S. Cl.
CPC ...
H02M 1/12 ;
Abstract
A noise canceling apparatus is provided that uses magnetically-coupled windings to cancel noise currents or noise voltages from a power converter. The apparatus may include a series voltage source or a shunt current source that is placed at input or output terminals of a power converter to eliminate the noise generated from the power converter.