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Max Switching Frequency FOC

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tuloski
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Max Switching Frequency FOC

Hi,

I see the maximum Switching Frequency I can set is 150k, but can it really work at that frequency the driver?

My goal is to run at 68k, can I test it without problem? I'm using a relatively small motor (max 15A @24V) for multicopters.

Pimousse
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Which Hardware are you using ?

tuloski
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4.12

TechAUmNu
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If I remember correctly the software will freeze after about 45KHz and you have to reflash with stlink to fix it.

tuloski
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Thanks for the answer.

What about VESC 6?

PS: if that option bricks the VESC why isn't it limited to 40k? Maybe a TODO feature ;)

TechAUmNu
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That was on VESC 6 I think. Not tried it in a while. 

Pimousse
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VESC 4.12 are safe up to 60k ERPM.

VESC 6 are safe up to 150k IIRC.

tuloski
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@Pimousse: I'm talking about PWM switching frequency, not ERPM.

Maxim Gridin
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TechAUmNu,  good day!

Could you said which firmware I  need to use for hw 4.10-4.12 to get erpm >40000 on FOC? (my ebike (13s) with another chinese ebikes-controller have ~48000 erpm in bldc mode and with "field correctoon" - "120%")

 (I do not know how to create my own bin-files, as well as change anything manually in the firmware)

Thank you, sir