Brushless motor testing with an Oscilloscope

Here is a brief follow-up video to show what a blown brushless motor looks like when viewed on an oscilloscope. A follow up to the earlier video: "Brushless motor testing without LC meter."

[@hobonickel840]

thanks for the great content... What's your favorite resources for keeping up with latest technology in this crazy world?

[@semihsenyuz7436]

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

[@billieticklish]

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.

[@davidgaleski5303]

thank you for showing me

[@a.hikmetancel826]

İ want to know please do what is bicycle dynamo frequency you do with your osilloscope show me please

[@Damnzz]

zei witten in mijn gedachte te vertellen hoe ik over dit systeem denk.

[@IshamPadron]

When you have two phases that aren't really producing much, what would cause a burnt up motor to also burn up an esc?

[@tomascancelliere4348]

do the probe grounds connect to anything?

[@edwardcunningham7402]

Very nice work, but heads up there's about 5 minutes of silence at the end of video. Maybe upload issue.

[@NilsRohwer]

Jeremy Voytershark thanks! Fixed

[@trentvarga7713]

deffos a south african