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. 16, 2003
Filed:
Jul. 30, 2002
Delta Electronics, Inc., , TW;
Abstract
An power supply apparatus for the input harmonic current suppression, input power factor compensation, and an output voltage regulation and a method thereof is provided. The power supply apparatus electrically connected to a AC power has a first power converter electrically connected in parallel with the AC power for providing a first compensating voltage and controlling the first compensating voltage to reduce harmonic components of an input current so as to cause the input current as a substantial sinusoidal wave and in phase with the input voltage, and a second power converter electrically connected in series with an output end of the power supply apparatus for providing a second compensating voltage in order to maintain the output voltage at a desired level and waveform. The related methods are also discussed.