Half throttle means that the motor is getting full voltage half the time. The pulses happen so fast that the motor takes an average voltage. So an kv motor at 5. Because as stated, the kv is rpm per volt. So continue where Noah left off rpm with a prop pitch of 4. There are plenty of web sites that explain it well. For the tech buffs out there — Yes, voltage does play a part but is not the primary factor in determining AC motor speed.
DCBM which has three wires will have three pairs of coils or three windings whose magnetic fields interact directly with the magnets as opposed to the AC motor where a voltage is induced into the rotor which then interacts with the AC supply fields. Three wires are also present on a number of single phase AC motors. So, the presence of three wires does not necessarily mean three phase.
You can argue that the DCBM controller for a three winding motor provides a three phase output, but its definitely not the same as your entity supplied 3 phase AC. The resistance of the windings is fixed although it will change a little with temperature , so to get more current flowing through the windings, the voltage must be increased.
Hope it helps, as I said there are plenty of good explanations available online if you wish to know more. If I have 2 drone motors of the same stator diameter and height and one has 20 coils and the other 12 coils but the same thickness of copper windings, which would have the higher torque and KV or is it possible to know just from this information?
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February 29, at am. Ray DeWeese. March 28, at pm. May 4, at pm. If its not a 3 phase motor why does it have 3 wires and how does voltage determine the rpm? December 15, at pm. Greg Johnson. Categories: News and Blogs. Author: Dave Clough.
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