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Shunt current filter calculation (AN4076)

Question asked by klimavicius.laur.001 on Dec 6, 2013
Latest reply on Jan 3, 2014 by klimavicius.laur.001
Hello,

Maybe someone could share 'Current sensing amplification stage design tool.xlsx' mentioned in AN4076 guide or explain how to calculate initial values of current sensing amplification filter? Or maybe there is some other guides which would include some more practical info on designing BEMF current sensing for FOC motor control. Controlled motor will be 12V 2-4 A, PWM frequency will be more than 20KHz, will see what STM32F103 will be capable of.

Thank you in advance,
Laurynas.

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