Title :
A fast transient recovery device for switching dc-dc converters
Author :
Wang, Jinping ; Xu, Jianping ; Lan, Yanni
Author_Institution :
Sch. of Electr. Eng., Southwest Jiaotong Univ., Chengdu, China
Abstract :
A fast transient recovery device (FTRD), which is used to improve transient response of switching dc-dc converters to meet fast load variation, is presented in this paper. During transient, it provides additional injected or drained current with high current slew rate, and fast transient response can thus be obtained. To illustrate its operation principle, FTRD is applied to a buck converter with conventional voltage-mode pulse width modulation (PWM). Experimental results show that the buck converter with the proposed FTRD achieves much faster transient response.
Keywords :
DC-DC power convertors; switching convertors; transient response; buck converter; drained current; fast transient recovery device; high current slew rate; injected current; load variation; switching DC-DC converters; transient response; voltage-mode pulse width modulation; Inductors; Pulse width modulation; Steady-state; Threshold voltage; Transient analysis; Transient response; Voltage control;
Conference_Titel :
Communications, Circuits and Systems (ICCCAS), 2010 International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-8224-5
DOI :
10.1109/ICCCAS.2010.5581934
