DEVICE AND METHOD FOR CONTROLLING INVERTER CIRCUIT

摘要

PURPOSE: A device and method for controlling inverter circuit(2) is provided to do Pulse Width Modulation(PWM) by cycling the upper and lower reflections of a gate signal authorized to upper and lower reflection power elements(T1¯T3)(T4¯T6) of an inverter circuit(2). CONSTITUTION: A device and method for controlling inverter circuit(2) includes an upper and lower reflections gate signal that controls the power element of an upper and lower reflection groups(T1¯T3)(T4¯T6) of an inverter circuit(2) according to the current driving state of a motor(1) judged by receiving the position signal of a motor inputted from a separate sensor through an interrupt, and saved information about the whole driving logic and group selection in a data table. A selection signal selects the upper reflection group power element(T1¯T3) and the lower reflection group power element(T4¯T6) by inversion cycle. A microprocessor(110) outputs a Pulse Width Modulation(PWM) signal to do PWM the upper and lower gate signals. A decoder(120) decodes the pertinent gate signal between the upper and lower gate signals according to the selection signal after receiving the PWM signal through an enabled terminal.