Resources Contact Us Home
A/D conversion apparatus

Image Number 13 for United States Patent #7663520.

An A/D conversion apparatus performs motor current detection in an A/D conversion period corresponding to two phases out of three phases of a sinusoidal drive motor, using reduced register resources while minimizing the number of A/D converters. The A/D conversion apparatus includes: a selection unit selecting one of a plurality of input channels; an A/D converter converting an analog signal from the selected input channel to a digital signal; a start register holding a start channel number of sequential conversion; an end register holding an end channel number of the sequential conversion; a prohibition information holding unit holding prohibition information indicating an input channel to be excluded from the sequential conversion; and a control unit causing the selection unit to select, in channel number order, input channels corresponding to channel numbers from the start channel number to the end channel number except the input channel indicated by the prohibition information.

  Recently Added Patents
System and apparatus for control of published content
System and method for reducing antivirus false positives
Crystalline solvates of 6-(piperidin-4-yloxy)-2H-isoquinolin-1-one hydrochloride
Position-measuring device
Strategic planning management
Visual physician office systems and methods
Tranverse in-core probe monitoring and calibration device for nuclear power plants, and method thereof
  Randomly Featured Patents
Satellite arrangement providing effective use of the geostationary orbit
Image sensor package and its manufacturing method
Sound signal processing device and method
Typewriter for European languages
Dielectric resonator antenna
Disc brake with mechanical actuator
System and method for sheet transporting using dual capstan rollers
Lighted sport design on an athletic shoe
System, method, and article of manufacture for determining an estimated battery parameter vector
Process for producing olefins from carbon monoxide and hydrogen