Bldc motor speed calculation

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venkat9chinthapalli

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Hi,

How can BLDC motor speed in RPM can be calculated from Hall sensor output?

My Motor is of One pole Pair and my Hall Sensor A frequency is 100Hz.




Thanks
venkat
 

if using a microcontroller such as a PIC24 you can connect the hall sensor to an interrupt on change input
you then count the interrupts over a period of time (using a timer interrupt) and calculate the RPM
 

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