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How to obtain the image of the Hall effect

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Boyuan ZHOU
Boyuan ZHOU on 2 Mar 2021
Answered: Dakai Hu on 22 Apr 2021
Good morning everyone,
I'm now working on a simulation of a Brushless Motor with three phases, and I need to obtain the image of the Hall effect.
However, in my simulation followed by the tuto of the mathwork, I can not find a place to add the scope.
I try another methode by using the PMSM, and successfully I get the image I need. But these two motors are not the same.
I find some exemples in the book and I find that they use PMSM as BLDC. So it's a bit awkward.
The probleme is that, if I use the BLDC, I cannot manage to obtain the image, but with PMSM I can, and to make things worst, PMSM is not the same as BLDC.

Answers (1)

Dakai Hu
Dakai Hu on 22 Apr 2021
When you configure the back EMF waveform in the PMSM block to be "Trapezoidal", it functions as a BLDC. As a matter of fact, BLDC can be considered a special type of PMSM. The main difference between the two, in addition to their back-EMF shapes, is their drive techniques (BLDC uses commutation logic while PMSM moslty uses FOC).

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