Interacting Bifurcations in Switching Systems (2009)
Yanfeng Chen, Chik. Tse, Wolfgang Schwarz, Shui-sheng Qiu
Abstract—We study a class of switching systems whose dynamics are characterized by an inner switching feedback loop and an outer continuous control loop. The loops have two widely separated time...
Abstract—Using the reduced redundant power processing (R 2 P 2) principle, a single-phase power-factor correction (PFC) power supply can achieve a higher overall efficiency as a result of the use...
General Design Issues of Sliding-Mode Controllers in DC–DC Converters (2009)
Siew-chong Tan, Y. M. Lai, Chik. Tse
Abstract—This paper examines the practical design issues of sliding-mode (SM) controllers as applied to the control of dc–dc converters. A comprehensive review of the relevant literature is first...
This paper presents an improved resonant parametric perturbation method for controlling chaos. The control target can be any periodic orbit. Anti-control of chaos or chaotization is also possible...
Complex Intermittency in Switching Converters (2008)
Yufei Zhou, Chik. Tse, Jun-ning Chen
Abstract—Intermittent instability is commonly observed in switching power supplies during the design and development phase. It manifests as symmetrical period-doubling bifurcation in the time...
Yanfeng Chen, Chik. Tse, Shui-sheng Qiu
Abstract—This paper investigates the interaction of fast-scale and slow-scale bifurcations in the boost converter under currentmode control operating in continuous conduction mode. Effects of...
Generating New Chinese Fonts Based on Wavelet Transforms (2008)
Based on the cubic B-spline curve, new Chinese fonts are generated by wavelet transforms in this paper. The outlines of Chinese fonts are first transformed into B-spline curves. Then, using wavelet...
Dong Dai, Chik. Tse, Bo Zhang, Xikui Ma
This paper reports intermediate-scale instability in a single-stage power-factor-correction (PFC) power supply that employs a cascade configuration of a boost stage operating in discontinuous...
Yanfeng Chen, Chik. Tse, Siu-chung Wong, Shui-sheng Qiu
This paper investigates the interaction of fast-scale and slow-scale bifurcations in the boost converter under current-mode control operating in continuous conduction mode. Effects of varying some...