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stm32f410 ADC monitor a sinewave

Question asked by anton.bogdan on Dec 7, 2016
Latest reply on Dec 8, 2016 by FTITI.Walid

Hello all,

i am working on a project which implies the control of a BLDC motor in 3 phases.

For this type of motor the switching of the phases must be sync with monitoring the "back-emf" signal from the unpowerd phase.

 

My question would be, what is the common practice to measure a zero falling edge signal at 30 degreese after the sinewave is passing down trough 0. A ADC triggerd by a fixed timer value?

I dont have very much experience with ADC's in tandem with timers

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