Motor control device

A motor control device comprising:

• an inverter circuit including a plurality of switching elements connected into a three-phase bridge configuration, the inverter circuit converting a direct current into a three-phase alternate current to drive an electric motor;
• a current detecting element connected to a direct current side of the inverter circuit, thereby generating a signal corresponding to a current value;
• a PWM signal generating unit which determines a rotor position based on the phase current of the motor and generates a three-phase PWM signal pattern so that the signal pattern follows the rotor position;
• and
• a current detecting unit which detects the phase current based on the signal generated by the current detecting element and the PWM signal pattern,
• wherein the PWM signal generating unit generates the three-phase PWM signal pattern so that the current detecting unit is capable of detecting two-phase current in synchronization with advent of two predetermined time-points within a carrier wave period of the PWM signal.