期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2015
期号：ICETET
页码：1
出版社：S&S Publications
摘要：This paper presents a high step-up transformerless ac/dc converter for universal line applications nearly400v. The topology integrates a step up converter used for power factor correction with a boost converter and part ofthe input power is coupled to the output directly. With this direct power transfer feature and sharing capacitor voltages,the converter is able to achieve efficient power conversion with power factor correction and the voltage is boostednearly up to 400v.The absence of transformer reduces the magnetizing circuit, the associated circuit dealing withleakage inductance and the cost of the proposed circuit are reduced compared with the isolated counterparts. Unlikemost of the other converter, the main switch of the proposed converter only handles the peak inductor current of dc/dccell rather than the superposition of both inductor currents.
