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. 07, 2006
Filed:
Jul. 30, 2004
Jianping Ying, Taoyuan Shien, TW;
Qingyou Zhang, Taoyuan Shien, TW;
Aibin Qiu, Taoyuan Shien, TW;
Teng Liu, Taoyuan Shien, TW;
Xingkuan Guo, Taoyuan Shien, TW;
Jianhong Zeng, Taoyuan Shien, TW;
Jianping Ying, Taoyuan Shien, TW;
Qingyou Zhang, Taoyuan Shien, TW;
Aibin Qiu, Taoyuan Shien, TW;
Teng Liu, Taoyuan Shien, TW;
Xingkuan Guo, Taoyuan Shien, TW;
Jianhong Zeng, Taoyuan Shien, TW;
Delta Electronics Inc., Taoyuan Hsien, TW;
Abstract
An apparatus for reducing the heat losses caused by the DC Bus capacitor current is proposed. The apparatus includes: a double frequency boost converter circuit having two boost converter circuits coupled in parallel, in which two switches, respectively disposed on the two boost converter circuits, are turned on and off alternately to produce an output current having a frequency twice that of control signals of the two switches, and to offer a DC bus respectively, a full-bridge DC-DC converter coupled to an output terminal of the double frequency boost converter circuit for transforming an output of the DC bus to a DC voltage, and a DC bus capacitor coupled to the double frequency boost converter circuit and the full-bridge DC-DC converter in parallel for balancing two corresponding transient powers of the double frequency boost converter circuit and the full-bridge DC-DC converter respectively.