Title :
The modulation and transfer function analysis of CIC control
Author :
Zhou, Xiao ; Fengyan Wang ; Xu, Jianping
Author_Institution :
Dept. of Electr. Eng., Southwest Jiaotong Univ., Sichuan, China
fDate :
29 June-1 July 2002
Abstract :
The assessment of the effects of current signal slopes on the stability of current-injection-control (CIC) converter is presented based on the modulation process analysis. The current loop gain was derived in a unified basis leading to small-signal models describing the modulation process. The combination of modulation process and transfer function analysis explain the instability phenomena exists in CIC converter. A conventional CIC loop around a buck dc-dc converter is used to get the transfer function of the CIC system, and to verify the result of modulation process discussed.
Keywords :
DC-DC power convertors; circuit stability; transfer functions; CIC control; buck dc-dc converter; current loop gain; current signal slopes; current-injection-control converter; instability phenomena; modulation process analysis; small-signal models; stability; transfer function analysis; Control systems; Inductors; Pulse width modulation; Signal processing; Space vector pulse width modulation; Steady-state; Switching converters; Topology; Transfer functions; Voltage control;
Conference_Titel :
Communications, Circuits and Systems and West Sino Expositions, IEEE 2002 International Conference on
Print_ISBN :
0-7803-7547-5
DOI :
10.1109/ICCCAS.2002.1179111
