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. 30, 2014
Filed:
Feb. 13, 2012
Chin-chang Wu, Kaohsiung, TW;
Wen-jung Chiang, Kaohsiung, TW;
Ming-pin Mai, Kaohsiung, TW;
Chia-wei Chou, Kaohsiung, TW;
Mao-jang He, Kaohsiung, TW;
Chin-Chang Wu, Kaohsiung, TW;
Wen-Jung Chiang, Kaohsiung, TW;
Ming-Pin Mai, Kaohsiung, TW;
Chia-Wei Chou, Kaohsiung, TW;
Mao-Jang He, Kaohsiung, TW;
Ablerex Electronics Co., Ltd., Xindian Dist., New Taipei, TW;
Abstract
A five-level DC-AC converter includes a capacitor set and a full-bridge circuit. The capacitor set contains two DC capacitors, a power electronic switch and two diodes. When the power electronic switch is turned on/off, the two DC capacitors are connected in series/parallel to provide a two-level DC voltage to the full-bridge circuit. The full-bridge circuit further converts the two-level DC voltage to output a voltage with three voltage levels in the positive half cycle and three voltage levels in the negative half cycle. This achieves the goal of using five power electronic switches to convert DC power into AC power with five voltage levels.