Research on KY Converter Topology

• Main Authors: Yeu-Torng Yau, 姚宇桐
• Other Authors: 胡國英
• Format: Others
• Language: en_US
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/k7j479

博士 === 國立臺北科技大學 === 電機工程系博士班 === 100 === In this dissertation, a boost converter, named KY converter, is first presented, which based on the combination of the charge pump behavior and traditional buck converter behavior, so as to provide not only the function of the fast load transient response but also the feature of the low output ripple current. Furthermore, the KY converter with the soft switching technique included suppresses the inrush current at startup as well as improves the power conversion efficiency. On the other hand, since the KY converter is only a voltage-boosting converter, two types of voltage-bucking/boosting converters, named KY step-up/down converters, are proposed herein so as to improve the capability of the KY converter in industrial applications to some extent. Above all, since the KY converter has an ideal voltage conversion ratio up to two only, several converters with high voltage conversion ratios, derived from the KY converter along with/without the coupling inductor, are presented herein so as to upgrade the capability of the KY converter in different industrial applications, such as burn-in test, green power, micro grid, etc. Finally, a detailed description of the basic operating principles and mathematical deductions of the KY converter and its derivatives along with some simulated and experimental results is to be given in the following, so as to demonstrate the effectiveness and feasibility of the proposed converter topologies.