Motors and Drives: DC Motor--Advantages and Disadvantages

Part 3 of the Motors and Drives Series details the advantages, disadvantages, and different components that make up a standard dc motor.

DC (Brush) [System Overview ]

  • Advantage - High Torque, easy speed (change the voltage) and torque control (just limit current)

  • Disadvantage – Expensive to produce, physically larger, high maintenance(brushes)

  • Typical 20:1 speed range

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