Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Motor control device










Image Number 18 for United States Patent #5872439.

A motor control device for controlling a swing motor which moves a head is provided with a disturbance observer and an operation suspending unit. The disturbance observer outputs a compensating signal for compensating a driving voltage V for driving the swing motor. The operation suspending unit suspends an operation of the disturbance observer, based on a detection signal supplied by a velocity sensor which detects an angular velocity of the swing motor and the driving voltage signal V for driving the swing motor. The operation suspending unit operates when the signal voltage in the disturbance observer exceeds a reference level. This arrangement solves the following problem arising when the disturbance observer is employed for controlling a motor: when the motor comes into collisions with a stopper at an edge of the motion space, the disturbance observer further drives the motor so as to oppose a motion caused by the collisions, thereby exacerbating the collision.








 
 
  Recently Added Patents
Apparatus and method of compressibly securing a stacked assembly of creep-susceptible components
Method of forming carbon particle-containing film, heat transfer member, power module, and vehicle inverter
Content server systems and methods
Light projection unit, image reading device including same, and image forming apparatus including the image reading device
Fuel transfer monitoring system and method
Deblocking filter
Oil pressure control apparatus
  Randomly Featured Patents
Messaging tracking system and method
Method to generate different frequency signals in a digital radio telephone
System and method for selecting a loudest speaker by comparing average frame gains
Microchannel plate streak camera
Image forming device making color corrections on stored image data
Flame retardant polyurethanes and additives therefor
Laundry treating machine and method for controlling the same
Process for selective application of solder to circuit packages
Alkylation reactions
Clamp type heater for back-part molding shoe machines