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I need to wind the wire of bldc motor according to the desired output parameters. So how to calculate the number of turns when I already have the stator and rotor dimensions? Is there a formula?

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  • \$\begingroup\$ I guess, no. It's too complicated. You could do a reference wiring with known amount of turns, then you spin the motor with a known speed and measure BEMF. This is the 1st parameter V_bemf per turn. You could estimate ki factor, but for real you should have a test bench and redo many wirings. For example you will not know the saturation current, and real ki VS current until measured on test bench. \$\endgroup\$ Commented Feb 4 at 7:13

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