Voltage unit clarification
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‎2021-12-30 9:00 AM
Dear MCSDK team,
Could you clarify SDK conversion from Volts to s16v.
- In UM2392 document it says that 1s16v = VMAX / 32768 -> s16v = V * 32768 / VMAX
- In MC Parameters Calculations document / Current Controllers slide, it says that
- Gains in V / A are converted to s16v / s16a by dividing by k
- k is defined like this : k = VBusDC * RShunt * Aop / Vddmicro.
- so k = s16A / s16V -> s16V = s16a / k
- with s16a = 65536 * RShunt * Aop / Vddmicro -> s16v = 65536 / VBusDC
Thank you for your help.
Best Regards
Antoine
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STM32 Motor Control
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‎2021-12-31 6:41 AM
Dear @ANICO.1​
Could you give the reference of the second document?
Anyway, I will clarify this point and update the documentation.
Best regards.
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‎2021-12-31 7:49 AM
I haven't any reference on this second document. It is a ST slide presentation titled = "MC Parameters calculation". It is marked ST Confidential, so tell me if it is ok to share it here (fully or a screenshot of the part of interest).
Best regards,
Antoine
