Design of a new type of the damped filter for system stability of DC-DC converter

Author

Zijing Qiu ; Hongmin Lu ; Yang Cui ; Yongsheng Mei

Author_Institution

Sch. of Electron. Eng., Xidian Univ., Xi´an, China

fYear

2012

fDate

22-26 Oct. 2012

Firstpage

1082

Lastpage

1085

Abstract

Based on a series R-C damping circuit used to stabilize the whole system, a new type of damped filter is proposed, and the expressions of the optimal damping design are deduced. Moreover, the blocking capacitance is much smaller than the parallel R-C damping circuit proposed in previous literature. The new type of filter used for the input and output filter of the buck converter is benefit to maintain the stability of the system and a smooth output waveform. The advantages of the new type of filter are illustrated and verified by MATLAB/Simulink.

Keywords

DC-DC power convertors; RC circuits; circuit stability; filters; DC-DC converter; Matlab-Simulink; blocking capacitance; buck converter; damped filter; optimal damping design; parallel R-C damping circuit; series R-C damping circuit; system stability; Circuit stability; Damping; Electromagnetic interference; Low pass filters; Stability analysis; Switches; Transfer functions; EMI; Input filter; Output filter; buck converter; optimal damping; stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas, Propagation & EM Theory (ISAPE), 2012 10th International Symposium on

Conference_Location

Xian

Print_ISBN

978-1-4673-1799-3

Type

conf

DOI

10.1109/ISAPE.2012.6408963

Filename

6408963