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  • 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
  • DC Motors: Principle of Operation
    Electric motors run by electromagnetism. However, there are also other types of motors that utilize electrostatic forces or piezoelectric effect. In the case of a PMDC {Permanent Magnet DC) motor, motion is produced by an electromagnet (armature) interacting with a fixed field magnet (housing
  • Servo Control of a DC Brush Motor
    of the PIC17C42 as a DC brush motor servo controller. It is shown that a PID (Propor-tional, Integral, Differential) control calculation can be performed in less than 200 ms (@16 MHz) allowing control loop sample times in the 2 kHz range. Encoder rates up to 3 MHz are easily handled by the PIC17C42's
  • How to Optimize Performance and Minimize Size in High Speed Applications
    There is a current increasing trend in requests for Brushless DC motors for high speed applications. For instance, new impeller technology changed the way modern respirators are designed to be more compact and quieter. Such performance requires motors that rotate up to 50 to 60 Krpm

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