Title :
A derivative PWM control method with constant switching frequency
Author :
Lin, Min ; Nishijima, Kimihiro ; Sato, Terukazu ; Nabeshima, Takashi
Author_Institution :
Oita Univ., Oita, Japan
Abstract :
A derivative PWM control method with constant switching frequency strong against incoming switching noise is proposed. The triangular voltage obtained from a simple RC network as a comparator input is employed to determine the duty ratio and an external clock signal is used to fix the switching frequency. Applying the proposed method to the buck converter, excellent dynamic performances and stable switching action are realized.
Keywords :
PWM power convertors; power system control; switching convertors; PWM control method; RC network; buck converter; clock signal; comparator input; constant switching frequency; duty ratio; switching noise; triangular voltage; Circuit noise; Clocks; Hysteresis; Noise level; Pulse width modulation; Switching circuits; Switching frequency; Transient response; Virtual colonoscopy; Voltage; Constant switching frequency; Fast transient response; Hysteretic PWM control;
Conference_Titel :
Power Electronics and Applications, 2009. EPE '09. 13th European Conference on
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-4432-8
Electronic_ISBN :
978-90-75815-13-9
