Hello sir, İf it is BLDC we know that the back emf is trapezoidal.İf it is PMSM we know that the back emf is sinusoidal.You say it is BLDC motor.Why it is not trepozaidal instead of sinusoidal?Do you know something about that? Thank you
Its what i thought too. used this video to know the why is it called bldc even tho it puts out a sinusoid. Googled it and turns out a bldc should have a trap bemf when used as a generator. Maybe the motor-generator in the video is too small that the waveform looks like a sinusoid? idk.
