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. 03, 2015
Filed:
Aug. 23, 2012
Ching-tsai Pan, Taipei, TW;
Ming-chieh Cheng, Taipei, TW;
Ching-ming Lai, Taipei, TW;
Yen-liang Chou, Taipei, TW;
Chih-hsing Fang, Taipei, TW;
Wen-wei Chan, Taipei, TW;
Ching-Tsai Pan, Taipei, TW;
Ming-Chieh Cheng, Taipei, TW;
Ching-Ming Lai, Taipei, TW;
Yen-Liang Chou, Taipei, TW;
Chih-Hsing Fang, Taipei, TW;
Wen-Wei Chan, Taipei, TW;
Allis Electric Co., Ltd., Taipei, TW;
Abstract
A high-efficiency high step-up ratio direct current converter with an interleaved soft-switching mechanism is provided. The direct current converter includes a voltage-multiplier circuit and an active clamping circuit. The voltage-multiplier circuit includes two isolating transformers, two main switches disposed on a primary side of the two isolating transformers, four diodes disposed on a secondary side of the two isolating transformers and four capacitors disposed on the secondary side of two isolating transformers, configured to boost a voltage of a direct-current power to a desired voltage value. The active clamping circuit, electrically connected to the voltage-multiplier circuit, includes two active clamp switches and a clamp capacitor to lower a voltage surge of the two main switches so that the two main switches and the two active clamp switches can be soft switched on.