DocumentCode :
2360516
Title :
A single switch buck-boost converter with a high conversion ratio
Author :
Van De Sype, David M. ; De Gussemé, Koen ; Ryckaert, Wouter R. ; Van de Bossche, A.P. ; Melkebeek, Jan A.
Author_Institution :
Dept. of Electr. Energy, Syst. & Autom., Ghent Univ.
fYear :
2005
fDate :
11-14 Sept. 2005
Abstract :
To supply a high voltage load from a low voltage source (e.g. battery pack) often a converter is required with a high conversion ratio. Boost converter topologies with coupled inductors have emerged displaying a high efficiency, a low overall component count, a simple topology, and the need for only a single low-voltage active switch. However, in some applications the output of the converter must be capable of reaching voltages below the input voltage. To solve this problem, a buck-boost-converter topology can be derived from the boost converter with coupled inductors. However, if the different positions for the capacitors in the buck-boost topology are considered, several variants can be distinguished. The properties of the different topological variations are studied. Eventually, a topological choice is made based on the proposed criteria for a 175-V supply, converting 175 W from a 24-V battery. The theoretical results are compared to the results retrieved from a prototype converter
Keywords :
power inductors; switching convertors; 175 V; 175 W; 24 V; converter topology; coupled inductors; high conversion ratio; single switch buck-boost converter; Automation; Batteries; Buck converters; Circuit topology; Coupling circuits; Inductors; Switches; Switching converters; Universal motors; Voltage; Converter circuit; soft switching;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power Electronics and Applications, 2005 European Conference on
Conference_Location :
Dresden
Print_ISBN :
90-75815-09-3
Type :
conf
DOI :
10.1109/EPE.2005.219508
Filename :
1665698
Link To Document :
بازگشت