New coupled-inductor SEPIC converter with very high conversion ratio and reduced voltage stress on the switches

Author

Axelrod, B. ; Berkovich, Y.

Author_Institution

Fac. of Eng., Holon Inst. of Technol., Holon, Israel

fYear

2011

fDate

9-13 Oct. 2011

Firstpage

1

Lastpage

7

Abstract

The new circuit of the coupled-inductor SEPIC converter is proposed. By addition of the secondary output inductor and diode in a basic SEPIC converter a new converter with a large conversion ratio is obtained. The splitting of this secondary inductor into two windings reduces the voltage stresses on the main switch and diodes. The additional diode helps to circulate the leakage inductance energy to the load in a non-oscillatory manner. The transistor turns on/off with soft- switching. The voltage stress on both the transistor and diodes is less than the output voltage. Computer simulation and experimental results confirmed the theoretical expectations.

Keywords

inductance; inductors; power conversion; semiconductor diodes; switching convertors; coupled inductor SEPIC converter; leakage inductance; reduced voltage stress; secondary output inductor; semiconductor diode; Switches; DC power supply; converter circui; soft switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Energy Conference (INTELEC), 2011 IEEE 33rd International

Conference_Location

Amsterdam

ISSN

2158-5210

Print_ISBN

978-1-4577-1249-4

Electronic_ISBN

2158-5210

Type

conf

DOI

10.1109/INTLEC.2011.6099731

Filename

6099731