Thanks a lot for this high quality lesson, very clear and complete!
@johncgibson4720
Ай бұрын
Excellent. I am trying to find a propeller that extends my drone's flight time, and I see the motor manufacturer's torque data with different propellers and input current. From this video's understanding, I can see the percent of power wasted as heat and percent of power used by the propeller. So now I can find a propeller for my RPMs that is most efficient.
@CadPixel-why-not2455
8 ай бұрын
understood torque. best explanation of torque
@user-ol3bo9hh9s
Жыл бұрын
OMG! What a high quality video! Love it!
@lyontypes
Жыл бұрын
good fresher and just in time for quiz 2:) i love the clarity of the concepts!
@smiiks2691
Жыл бұрын
Amazing!
@aliaatarek7106
Жыл бұрын
this playlist is what i dreamt of please make dc machines course in that same manner of combining practical and theoretical.
@diegogallego9370
Жыл бұрын
Brilliant explanation! theory and practice.
@adanner
Жыл бұрын
Thank you for subscribing to my channel. Keep watching and learning. Please do spread the word so others can learn too.
@chereba7309
7 ай бұрын
Great explanation! Thanx!
@backyardmachinist
10 ай бұрын
Thank you sharing this knowledge. You stated that the back EMF increases untol the motor reaches its operating speed (no load condition). What would the back EMF be if the motor were to be loaded?
@outagas2008
Жыл бұрын
Do ke and kt have to be re-determined for a different voltage? I want to use a 12V motor at 8V. PS. Great videos!
@VTeslaV
Жыл бұрын
For a permanent magnet DC motor or pmsm what is the back EMF/voltage measured in when calculating the Ke? Is it the Peak, Peak-Peak or RMS value of the voltage? Similar question for the Kt constant, when controlling a motor you normally set the Iq current vector. Can you calculate the Nm torque on the motor by multiplying this value with the Kt?
@VTeslaV
Жыл бұрын
Why I'm asking is because I have a motor that states in the datasheet that it should be 6.2v(RMS)/kRPM so 6.2v rms per 1000RPM. I'm trying to calculate the maximum torque I can apply at 0 RPM when using an FOC motor controller. When using this controller the Iq current is way lower than the actual current going into the device. If I calculate the Ke from the 6.2vRMS/kRPM I get a Ke/Kt of 0.06. The internal resistance of the motor is only around 0.05 ohm, my powersupply is 42. This would result in a stall current of around 840A with a torque of 50Nm. The motor in question is only around 10x10cm big and will probably explode at this power consumption of 35280w. I'm also wondering if there is a maximum magnetic field/force you can pull a neodynium magnet inside a motor that will ultimately limit the motor in this situation.
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