An Analysis Method of Operation State for Boost Converter with Voltage Feedback Control

Abstract When system parameters were adjusted, some instability phenomenon could occur in closed-loop DC-DC converter. For improving the stability of converter system, an analysis method of operation state for converter was presented based on the discrete model of continuous conduction mode(CCM) Boost converter with voltage feedback control. This method can avoid fussy derivative operation. The steady equation of CCM Boost converter was deduced and the system parameters condition on which closed-loop instability phenomenon would occur were analyzed, the condition is appropriate to high frequency Boost converter. Corresponding simulation results were given in this paper.