Resources Contact Us Home
Driving device for a stepping motor

Image Number 7 for United States Patent #4959601.

In a driving circuit for a stepping motor in which a phase current corresponding to a predetermined reference voltage is generated when an excitation signal for each phase of the stepping motor is being produced and a coil of the corresponding phase is excited by the phase current, the supply time of the phase current is controlled by the pulse signal of a pulse generator for varying the pulse width, thereby improving the rising state of the phase current.

  Recently Added Patents
Identifying a characteristic of an individual utilizing facial recognition and providing a display for the individual
Touch screen tablet
Method and system for using personal devices for authentication and service access at service outlets
System and method for a driver circuit with a referenced control signal
Computer product, information retrieval method, and information retrieval apparatus
Cell transport system comprising a homogeneous mixture of agarose and agarase
Process information structuring support method
  Randomly Featured Patents
Combined keyboard support and wrist rest
Loom having at least two sectional warp beams
1,2-dihydropyrido(3,4,-b)pyrazines as fungicides
Electromechanically actuated valve with multiple lifts and soft landing
Injection molded follow block for file drawer
Bidirectional web guiding system
Vacuum pumping system and method of controlling the same
Door hinge with integrated preset stops
3-Heterothio derivatives of (carbamoylthioacetyl)cephalosporins
Radiation-sensitive mixture and recording material made thereof for offset printing plates