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  • DC Motors
    Industrial applications use direct current motors because the speed-torque relationship can be varied to almost any useful form -- for both motor and regeneration applications in either direction of rotation. Continuous operation of dc motors is commonly available over a speed range of 8:1
  • Integrated Drive Electronics for Brushless DC Motors
    Brushless DC motors (BLDCs) achieve commutation electronically by utilizing a permanent-magnet. rotor, wound stator, and rotor-position sensing scheme instead of a mechanical commutator or brushes. found in brush-type DC motor designs. With brush wear or arcing eliminated and as a result of other
  • AC and DC Variable Speed Drives: Application Solutions
    Knowing what controller/motor package to use in a given situation is just one of the subjects covered in this overview of AC and DC drive application considerations. Published originally as a direct mail piece for distribution use, it has been updated with additional information on drive selection
  • Permanent Magnet (PM) DC Gearmotors and Motors
    Permanent magnet DC (PMDC) motors provide a comparatively simple and reliable DC drive solution in applications requiring high efficiency, high starting torque and a linear speed/torque curve.
  • AC and DC Variable Speed Drives: Application Considerations
    , because of their constant torque capabilities, A-C V*S Drives can continuously produce full load torque without overheating over speed ranges dependent upon the type of motor being used. The first graph to the right show the speed-torque profile for A-C V*S Drives using an energy efficient Duty Master XE
  • Understanding Electronic Motor Drives
    drive controls the speed, torque, direction, and resulting horsepower of a motor. Dc drives typically control a shunt-wound dc motor, which has separate armature and field circuits. Ac drives control ac-induction motors and, like their dc counterparts, control speed, torque, and horsepower
  • Motors and Drives: A Practical Technology Guide
    was equal to or smaller that its DC counterpart. Improvements in power electronics increased the reliability of AC drives, to the point where one would almost never hear of a drive failure upon start-up. This book is intended to de-mystify drive and motor technology, used in today's modern
  • A Practical Guide to Brushless DC Implementation
    Brushless DC (BLDC) motors have the performance advantages of DC permanent magnet motors without the need for motor brush maintenance. BLDC motors have the additional advantages of very high base speed (20,000 RPM and higher), quiet operation and energy efficiency. In years past these advantages

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