Title :
Analysis and implementation of a DC-DC step-down converter for low output-voltage and high output-current applications
Author :
Hsieh, Chih-Hsien ; Liang, Tsorng-Juu ; Yang, Lung-Sheng ; Lin, Ray-Lee ; Chen, Kai-Hui
Author_Institution :
Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan
fDate :
May 30 2010-June 2 2010
Abstract :
A novel DC-DC step-down converter with interleaved control for low output-voltage and high output-current applications is presented in this paper. The voltage gain of the proposed converter is half of the conventional buck converter with reduced current stresses on power devices and low output-current ripple are reduced. The operating principle, steady-state analysis, and small-signal model analysis are discussed in detailed. Finally, a prototype circuit of the proposed converter with 12-V input voltage, 1.5-V/40-A output is implemented to verify the performance.
Keywords :
DC-DC power convertors; network analysis; DC-DC step down converter; current 40 A; high output current application; low output voltage application; small signal model analysis; steady state analysis; voltage 1.5 V; voltage 12 V; voltage gain; Buck converters; Capacitors; DC-DC power converters; Equivalent circuits; Inductors; Power supplies; Pulse width modulation; Stress; Switches; Voltage; buck converter; interleaved control; low output-voltage and high output-current;
Conference_Titel :
Circuits and Systems (ISCAS), Proceedings of 2010 IEEE International Symposium on
Conference_Location :
Paris
Print_ISBN :
978-1-4244-5308-5
Electronic_ISBN :
978-1-4244-5309-2
DOI :
10.1109/ISCAS.2010.5537764
