Patent ID: 7443132

Claim:
A motor control device for controlling rotation of a motor by controlling a driving voltage applied to the motor, comprising: a driving voltage control unit configured to control the driving voltage; and a detecting unit configured to detect rotation of the motor, the motor having operating characteristics indicative of relationship between the driving voltage and a rotation speed of the motor, the operating characteristics having a specific dead-band range of driving voltages wherein the rotation speed of the motor is zero regardless of changes in the driving voltage, wherein the driving voltage control unit performs a low rotation control operation including at least one alternating repetition of a first control operation and a second control operation, the first control operation adjusting the driving voltage to have a value outside of the dead-band range from a value within the dead-band range, the second control operation adjusting the driving voltage to have the value within the dead-band range from the value outside of the dead-band range, wherein the second control operation is performed after a specific first amount of motor rotation has been detected in the first control operation.