Title :
Effect of output capacitor structure on the input impedance of stacked boost converter
Author :
Qian Chen ; Zheng, Trillion Q. ; Yan Li
Author_Institution :
Sch. of Electr. & Eng., Beijing Jiaotong Univ., Beijing, China
Abstract :
In order to improve the input impedance of stacked boost converter (SBC) that processes only a part of the total power delivery, the traditional three-capacitor structure is optimized as single-capacitor structure in this paper. Then small signal models of push-pull SBC based on these two capacitor structures are set up, the loop gain and input impedance are analyzed and compared. Finally, the effectiveness of theoretical analysis is verified by the experimental results.
Keywords :
power capacitors; power convertors; input impedance; loop gain; push-pull SBC; single-capacitor structure; small signal models; stacked boost converter; three-capacitor structure; total power delivery; Capacitors; Impedance; Periodic structures; Regulators; Resonant frequency; Transfer functions; Voltage control;
Conference_Titel :
Applied Power Electronics Conference and Exposition (APEC), 2014 Twenty-Ninth Annual IEEE
Conference_Location :
Fort Worth, TX
DOI :
10.1109/APEC.2014.6803457
