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:
Nov. 04, 2008
Filed:
Aug. 11, 2006
Chin-chang Wu, Kaohsiung, TW;
Hung-liang Chou, Kaohsiung, TW;
Wen-pin Hsu, Kaohsiung, TW;
Yu-ting Kuo, Kaohsiung, TW;
Ya-tsung Feng, Kaohsiung, TW;
Chin-Chang Wu, Kaohsiung, TW;
Hung-Liang Chou, Kaohsiung, TW;
Wen-Pin Hsu, Kaohsiung, TW;
Yu-Ting Kuo, Kaohsiung, TW;
Ya-Tsung Feng, Kaohsiung, TW;
Ablerex Electronics Co., Ltd., Taipei Hsien, TW;
Abstract
An active power conditioner, connecting with a load and a power source in parallel, includes a DC power capacitor, a power converter, a high-frequency filter and a control circuit. The control circuit detects the voltage of the DC power capacitor and the current of the power source, thereby performing a closed loop control to stabilize the voltage of the DC power capacitor and performing a feed forward control to generate a driving signal for driving the power converter. The power converter actuates the DC power capacitor to supply a current via the high-frequency filter to reduce the reactive and harmonic components of load current. The load is converted to the linear resistance characteristic, observed from the power source side.