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Have you ever done a brushless motor drive? The driving MOS tube is very hot, and seek a solution.

Hardware design
octubre 30, 2020 by Kasey 1376

Have you ever done a brushless motor drive? The driving mos tube is very hot. Seek a solution.

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Romeo Publicado en October 30, 2020

Is it caused by the low power or not taking reasonable heat dissipation methods

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Anne Publicado en October 30, 2020

Maybe the bootstrap capacitor and control resistance are wrong, right?

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Jett Publicado en October 30, 2020

1. The current selection of MOS tube itself is small

2. The MOS tube current spike is too large when it is turned on and off

3. The opening time and closing time are too long

4. The voltage of G pole is too small, making the MOS tube work not in the constant current region

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