Motor control apparatus and motor drive apparatus

A motor drive apparatus comprising:

• a motor;
• and
• a control apparatus,
• wherein the control apparatus comprises:
• a current detecting unit that detects a motor current flowing through at least one coil of the motor;
• a rotation position detecting unit that detects a rotation position of a rotor provided in the motor;
• a phase difference calculating unit that calculates first phase difference information which is a phase difference between the motor current and the rotation position when a rotation speed of the motor is equal to or lower than a predetermined rotation speed, and second phase difference information which is a phase difference between the motor current and the rotation position when the rotation speed of the motor exceeds the predetermined rotation speed;
• a storage unit that stores phase correction information based on the first phase difference information;
• a correcting unit that corrects the rotation position based on the phase correction information and the second phase difference information input from the phase difference calculating unit and output a corrected rotation position signal;
• and
• a drive unit that generates a drive signal to be output to the motor based on the corrected rotation position signal.