Dynamic Performance Optimization of Buck Converter Based on Controllable Inductor

This Paper proposed a dynamic performance optimization method based on controllable inductor to solve the current overshoot and voltage overshoot of Buck converter during the startup process and load switching process. By establishing the state space equation of the Buck converter, the state variables of the Buck converter are described and analyzed mathematically by using the phase trajectory technique. By introducing continuous variable, the inductor value of Buck converter is changing dynamically, so that the running trajectory of system state variables is adjusted and the current and voltage overshoot of the system is reduced. Finally, the MATLAB software is used to build the simulation platform, which verifies that the scheme can effectively reduce the current and voltage overshoot of the system on the premise of ensuring the rapidity.