부산대학교 도서관

Nowadays almost all power sources use large amounts of capacitance to suppress the ripple waves. Commutation control at this time will cause serious current surge due to the charging characteristics of the capacitor. As the development of the power supplies, the commutation control of the power supply would be more and more difficult. In traditional control methods, the control program will be more complex and additional loops will be added, which affects the power density and add additional cost. This paper introduce a method for commutation control in a 10kW DCDC converter. Different from the traditional method, a current-mode PWM controller is used to build the voltage and current control loop. The experiment results show that this method can suppress the current surge while the load changed or the output voltage increased without the extra loop and complex control systems.