Inverter system for vehicle

An inverter system for a vehicle, the inverter system comprising:

• an energy storage device storing electrical energy;
• a first inverter connected to the energy storage and including a plurality of first switching elements, wherein the first inverter converts the electrical energy stored in the energy storage device into AC power;
• a second inverter including a plurality of second switching elements which are types different from the first switching elements, wherein the second inverter is connected to the energy storage device in parallel with the first inverter, and converts the electrical energy stored in the energy storage device into AC power;
• a motor connected to an output side of the first inverter and an output side of the second inverter in common and driven by receiving the AC power converted by the first inverter and the second inverter;
• a pulse-width modulation (PWM) signal generating device generating a reference PWM signal for controlling driving of the motor, and
• a PWM signal converting device connected to the PWM signal generating device and converting the reference PWM signal into a first PWM signal input into the first inverter to drive the first switching elements, and a second PWM signal input into the second inverter to drive the second switching elements with on/off timing different from on/off timing of the first PWM signal.