METHOD FOR CHARGING INVERTER DRIVER

摘要

PURPOSE: A charge method of an inverter driver is provided to remove impacts in a charging process by employing a PWM(Pulse Width Modulation) charging method. CONSTITUTION: A PWM output unit outputs a PWM signal in the starting of a motor(S10). The PWM signal is inputted to the gate terminal of a switching device that is repetitively turned on and off. A capacitor is charged with the switching device turned on. The PWM output unit counts time and compares the counted time with a predetermined charge time and confirms the time exceeding the predetermined charge time(S20). The PWM output unit charges a capacitor with PWM output.