Patent ID: 6664754
Filing Date: 2003-12-16
Classification: H02P

Abstract:
A motor driving control apparatus comprising:exciting means for supplying current from a power source to a motor coil; first setting means for setting an exciting period to supply current from the power source to the motor coil by said exciting means; second setting means for setting a non-exciting period not to supply current from the power source to the motor coil by said exciting means; and PWM means for repeating alternately the current supply to the motor coil during the exciting period set by said first setting means, and the non-supply of current to the motor coil during the non-exciting period set by said second setting means, said motor being driven by changing an exciting pattern of said exciting means, wherein said motor driving control apparatus further comprises third setting means for setting a short period to enable each of the feeding points of the motor coil to be short-circuited totally during said non-exciting period; and fourth setting means for setting an open period to enable each of the feeding points of the motor coil to be totally in an open status.