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  • Dc motor impersonators
    , during a 2 motor speed increase. The curve duplicates the armature current for a dc motor performing the same operation. The net effect provides dc motor control response for ac induction motors. Synchronous dc motors often top the field in high-performance motor controls. This group of motors includes
  • Brush DC Motor Basics
    Brushed DC ironless motors are found in a large variety of products and applications such as medical, robotics, factory automation, security and access, civil aviation and aerospace products. The ironless technology surpasses by far the performance of conventional ironcore brushed DC motors
  • Servo Control of a DC Brush Motor
    high speed peripherals. Further, the on-chip peripherals allow an absolute minimum cost system to be constructed. Closed-loop servo motor control is usually handled by 16-bit, high-end microcontrollers and external logic. In an attempt to increase performance many applications are upgrading to DSPs
  • Crouzet DC Motor Tech Guide (.pdf)
    Many applications call for a high start-up torque. The DC motor, by its very nature, has a high torque vs. falling speed characteristic and this enables it to deal with high starting torques and to absorb sudden rises in load easily. The speed of the motor adjusts to the load. Furthermore, the DC
  • Reasons for Turning to Slotless DC Motor Technology
    . mechanism that would wear and eventually result in motor failure, brushless motors could be relied upon. to deliver performance over time. As for other advantages, conventional wisdom held that brushless. motors provide high speed and fast acceleration, generate less audible noise and electromagnetic
  • DC Motors
    brake. Dc motor speed can be controlled smoothly down to zero, immediately followed by acceleration in the opposite direction -- without power circuit switching. And dc motors respond quickly to changes in control signals due to their high ratio of torque to inertia. Wound-field dc motors
  • Brushless DC Motors
    finishes. Because they have no commutator, brushless motors are more efficient, need less maintenance, and can operate at higher speeds than conventional dc motors. High efficiency and small size are especially important for military, aircraft, and
  • The "no-cog " motor
    applications need smooth velocities without any variations in rotational speed. Typically, eight-pole slotted brushless dc (BLDC) motors work well in these situations. However, deviations displayed in a recent application were unacceptably high prompting a search for a smoother motor with lower cogging

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