Title :
Improved transient response using HFFC in current-mode CFCOT control for Buck converter
Author :
Wen-Wei Chen ; Jiann-Fuh Chen ; Tsorng-Juu Liang ; Jian-Rong Huang ; Wei-Yuan Ting
Author_Institution :
Nat. Cheng Kung Univ., Tainan, Taiwan
Abstract :
In this paper, improved transient response using high-frequency feedback control (HFFC) in current-mode constant frequency constant on-time (CFCOT) control for Buck converter is proposed. The concept uses HFFC to filter out the Vout at the load transient to dynamically change the width of on-time to prevent the Vout from dropping markedly. Finally, HFFC is implemented using the experimental results and SIMPLIS simulation results to verify its viability and superiority.
Keywords :
feedback; frequency control; power convertors; transient response; HFFC; SIMPLIS simulation; buck converter; current-mode CFCOT control; current-mode constant frequency constant on-time control; high-frequency feedback control; improved transient response; load transient; Capacitors; Oscillators; Power electronics; Resistors; Transient analysis; Transient response; Voltage control;
Conference_Titel :
Power Electronics and Drive Systems (PEDS), 2013 IEEE 10th International Conference on
Conference_Location :
Kitakyushu
Print_ISBN :
978-1-4673-1790-0
Electronic_ISBN :
2164-5256
DOI :
10.1109/PEDS.2013.6527079