Shift range control apparatus

A shift range control apparatus for switching a shift range by controlling a drive of a motor, the shift range control apparatus comprising:

• an angle calculator configured to calculate a motor angle as a rotational angle of the motor based on a detected value of a rotational angle sensor detecting a rotational position of the motor;
• a speed calculator configured to calculate a motor rotational speed as a rotational speed of the motor based on the detected value of the rotational angle sensor;
• and
• a drive controller configured to:
• start the drive of the motor in response to switching of a target shift range, and
• execute a stationary phase energization control to
• set an energization phase selected from a group consisting of a plurality of energization phases as a stationary energization phase of the motor, according to the rotational speed of the motor, and
• stop the motor in response to the motor angle reaching a stationary phase energization start position by continuing energization to the stationary energization phase set by the drive controller until stop of the motor,
• wherein the rotational speed of the motor is a rotational speed at a time in which the motor angle reaches the stationary phase energization start position.