Zero-Current-Switching Switched-Capacitor Bidirectional Converters with Synchronous Rectifiers and Multiple Output

• Main Authors: Yi-Feng Wang, 王義豐
• Other Authors: Yuang-Shung Lee, Ph.D.
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/27169148424751203647

碩士 === 輔仁大學 === 電機工程學系碩士在職專班 === 103 === This thesis presents a power supply which has more widely range of output power and tunable on its output voltage and also considered its costs is what users need. The demand on different range of output power in market makes highlight on the requirement of single power supply which has multiple voltage adjustment. The proposed switched-capacitor bidirectional converters with synchronous rectifiers and multiple output converters which specification is expected by the market has been proposed in this thesis. First, the switched-capacitor converter will be introduced then the schematic will be extended to triple output voltage gain and analyze its operating principle. In the meantime, the inserted output inductor will be increased to controlling the output voltage gain. The operating principle of multi-stage output with mosfet type circuit and the technology on increasing the range of output voltage have explained in this paper. Also, the zero current switching and synchronous rectification technology are included in the schematic to make better efficiency and have higher output power. Because of the fewer parts on the proposed circuit architecture, the cost is only quarter of the traditional buck or boost type converters. The designed converter uses a modular design approach to provide about three to four hundred watts of output power. In the future researched, the parallel module with interleaved and pulse width modulation control technology will be included to improve the output power and efficiency.