# \#back-emf

**URL:** https://forum.plexim.com/tag/back-emf/565.md

[Latest](https://forum.plexim.com/latest.md) · [Categories](https://forum.plexim.com/categories.md) · [Tags](https://forum.plexim.com/tags.md)

---

## [How to calculation of PMSM Back EMF](https://forum.plexim.com/t/how-to-calculation-of-pmsm-back-emf/1044)

<div class="topic-metadata">

**Author:** [@oming0731](https://forum.plexim.com/u/oming0731)\
**Replies:** 1\
**Last updated:** [July 19, 2021, 10:38am UTC](https://forum.plexim.com/t/how-to-calculation-of-pmsm-back-emf/1044 "2021-07-19T10:38:01Z")

</div>

Dear All, I have a question about back EMF of PMSM. In the Plecs, how to calculate back EMF of PMSM? I have back emf constant which measure by line to line peak voltage. Best regards,