AC Or DC Drive- Which is Best for Small Motors?

Variable speed motor controls (‘drives’) have been around for many decades.  In the early years, application and budget were the primary decision criteria for choosing between a DC motor/drive package and AC equivalent.  While this practice continues, the advances in AC drive technology have made the decision more complex to where either AC or DC meet application requirements.  The decision criteria are broader and now include:

  •  Application Requirements
  • Ease of Installation and Operation
  • Cost and Availability
  • Maintenance and Support
  • The Impact of Brushless DC

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  1. Newsletter #1 | smith-automation - October 11, 2016

    […] For applications that require controlling the speed / direction / start-stop of a motor, there are several technologies to choose from. The article below provides an overview of the primary decision factors to be considered for applications using 2HP and smaller motors: Determining best technology for small motor applications […]

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