Title :
Small-signal model of V2 control technique with compensation
Author :
Wang, Fengyan ; Xu, Junfeug ; Xu, Jianping
Author_Institution :
Coll. of Electr. Eng., Southwest Jiaotong Univ., Chengdu, China
Abstract :
The small signal models of V2 control without/with slope compensation are derived. It is verified that the loop with compensation can keep stable, even though the duty factor is higher than 0.5. The paper compares V2 control with current-mode control. The analysis shows that V2 control has much higher DC gain than current-mode control, and, by careful design, V2 control can have larger bandwidth than current-mode control. This is why the V2 control technique has a faster transient response than current-mode control with load current step change.
Keywords :
DC-DC power convertors; current-mode circuits; nonlinear network analysis; voltage control; voltage regulators; DC gain; DC-DC converter; V2 control technique; bandwidth; current-mode control; slope compensation; small signal models; transient response; voltage regulator module design; Buck converters; Central Processing Unit; Educational institutions; Equivalent circuits; Filters; Flowcharts; Inductors; Paramagnetic resonance; Transient response; Voltage control;
Conference_Titel :
Communications, Circuits and Systems, 2004. ICCCAS 2004. 2004 International Conference on
Print_ISBN :
0-7803-8647-7
DOI :
10.1109/ICCCAS.2004.1346427
