Importance

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Abstract

A drive apparatus includes: an electric motor; a drive target; a transmission mechanism through which the electric motor and the drive target are connected to each other; a rotation sensor that detects the rotational position of the electric motor; a starting position setting unit that sets the rotational position which is detected in a motor lock state in which the rotation of the electric motor is limited, as a starting position corresponding to a mechanical lock state of the drive target; a voltage sensor that detects the voltage of an electric power source which supplies electric power to the electric motor; and a starting position correcting unit that corrects the set starting position by the amount of correction which increases by the extent of an increase in the detected voltage.

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First Claim