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
Methods of operating non-volatile memory devices during write operation interruption, non-volatile memory devices, memories and electronic systems operating the same
Data architecture and user interface for plasma processing related software applications
Communication apparatus, power supply control method, display apparatus, communication method, and computer program product
Pressure washer
Low power voltage controlled oscillator (VCO)
Method and apparatus for controllable communication
Light emitting diode having multi-cell structure and method of manufacturing the same
  Randomly Featured Patents
Liquid-crystal panel of polymer dispersed type, method of manufacturing the same, and liquid-crystal display apparatus
Wafer carrier mapping sensor assembly
Concrete mold assembly device
Electrical stimulator for biological tissue having mode control
Versatile multiplexer-structures in programmable logic using serial chaining and novel selection schemes
Agricultural container with corner struts
Juice drainer
Metal strip, connector, and method of manufacturing metal strip
Boat light clamp for pedestal seat post
Continuous process for irradiating of polytetrafluoroethylene (PTFE)