Stability Analysis in the Current-Mode Controlled DC/DC Buck Converter with Switching Delay

Conference: NDES 2012 - Nonlinear Dynamics of Electronic Systems
07/11/2012 - 07/13/2012 at Wolfenbüttel, Germany

Proceedings: NDES 2012

Pages: 4Language: englishTyp: PDF

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Asahara, Hiroyuki; Kousaka, Takuji (Dept. of Engineering, Oita University, 700 Dannoharu, Oita, 870–1192, Japan)
Banerjee, Soumitro (Indian Institute of Science Education and Research, West Bengal, Mohanpur, 741252, India)

In this paper, we study the stability of the fixed point in the current mode controlled DC/DC buck converter with switching delay. First, we explain the circuit dynamics. Next, we define the Poincar´e map by using the exact solution. Finally, we calculate the stability of the fixed point. In particular, we compare the stability in the ideal switching case, and show that the switching delay affects the first bifurcation.