Defining Brushless DC Motors #3 of 4: Deriving Kt motor sensitivity & Kb back emf constants

By John Knott, President of JD Technologies, LLC

In my first two blogs I presented an overview of a simple six-step procedure for defining a permanent magnet BDCM and showed how to establish the relationship between motor sensitivity (Kt) and back emf (Kb).  In this third blog I will show how to define the relationships between the motor constants and then derive the actual motor constants.

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