Title :
High efficiency step up/down PFC rectifier
Author :
Mahdavi, Mehdi ; Farzanehfard, Hosein
Author_Institution :
Dept. of Electr. & Comput. Eng., Isfahan Univ. of Technol., Isfahan, Iran
Abstract :
In this paper a new zero voltage transition (ZVT) Bridgeless SEPIC PFC converter is introduced. The proposed converter has only two semiconductors in the current path at all times. Therefore the conduction losses in this converter are reduced in comparison with conventional SEPIC PFC rectifier. Also, in the proposed converter, ZVT soft switching technique is applied to increase the efficiency. The principle of the operation, design procedure and simulation results are presented. Almost unity power factor is achieved and 3% efficiency improvement in comparison with hard switching counterpart is obtained.
Keywords :
power factor; rectifiers; zero voltage switching; High design simulation; SEPIC PFC rectifier; ZVT bridgeless SEPIC PFC converter; ZVT soft switching technique; design procedure; hard switching; high efficiency step up-down PFC rectifier; semiconductors; unity power factor; zero voltage transition; Power electronics; Reactive power; Rectifiers; Switches; Topology; Zero voltage switching; Bridgeless PFC; Power Factor Correction (PFC); SEPIC Converter; ZVT;
Conference_Titel :
Applied Electronics (AE), 2012 International Conference on
Conference_Location :
Pilsen
Print_ISBN :
978-1-4673-1963-8
