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:
Mar. 01, 2005
Filed:
Aug. 13, 2003
Louis Cheng, Scarborough, CA;
Qihua Zhao, Mississauga, CA;
Louis Cheng, Scarborough, CA;
Qihua Zhao, Mississauga, CA;
Honeywell International Inc., Morristown, NJ (US);
Abstract
An active filter () generates multi-phase compensating current in an AC power supply system () that supplies a load (). The filter () includes a compensating current output device () outputting multi-phase compensating current to an AC power line (); and a controller () for controlling the compensating current output () such that the multi-phase compensating current compensates for current harmonics and power factor on said AC power line (). The controller () estimates current harmonics and power factor compensating values as a function of multi-phase power measurements.