Dynamic Behavior Analysis of Current Controlled Buck Converter
Based on the switching boundary of the current controlled Buck converter,its nonlinear oscillation behavior is analyzed using discontinuous dynamics theory.By adjusting the voltage amplitude of the control circuit and the DC excitation power supply value,the parameter bifurcation diagrams of the collision boundary and clock pulse triggering are given,and the parameter nodes of the current controlled Buck converter from stable period 1 to chaotic state are obtained.By drawing phase trajectories and time series diagrams of periodic and chaotic motion,the system types with different mapping structures in each sub domain are analyzed.The research results indicate that the flow controlled Buck converter has rich motion behavior when the parameters change,obvious boundary collision phenomenon,and period doubling bifurcation and Intermittency are observed.By analyzing the mapping type,the nonlinear oscillation behavior of its boundary is explained.
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