Title :
A novel PWM control method for DC-DC converter with fast transient response
Author :
Min Lin ; Tomioka, Satoshi ; Nabeshima, T. ; Sato, Takao ; Nishijima, K.
Author_Institution :
Adv. Dev. Dept., TDK-Lambda Corp., Kitakyushu, Japan
Abstract :
A novel PWM control method with constant switching frequency for DC-DC converters is proposed. The proposed control method has excellent control characteristics and is suitable for the low-voltage high-current dc-dc converter which requires a fast transient response. The transfer function of the proposed controller is obtained by small signal ac analysis, and the dynamic characteristics of the regulator are examined by simulation and experiments. The results show the proposed method provides excellent dynamic performance and stable switching action without using an error amplifier in the controller.
Keywords :
DC-DC power convertors; power amplifiers; pulse width modulation; switching convertors; transfer functions; transient response; PWM control method; constant switching frequency; error amplifier; fast transient response; low-voltage high-current dc-dc converter; small signal ac analysis; transfer function; Capacitors; Clocks; Control systems; Pulse width modulation; Switching frequency; 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.2013.6527101