Want to measure the current speed of BLDC motor

[muniasamy]

Motor control

hi,

I want to measure the current speed of BLDC motor .In Driver circuit one I/O pin is avaliable Known as SPEED OUT how to measure the speed without any instrument?

 

[eem2am]

Motor control

you can only measure motor speed with

resolver
encoder

some sort of hall effect device

 

[muniasamy]

Re: Motor control

you can only measure motor speed with

resolver
encoder

some sort of hall effect device

thanks for your reply .

In my sysytem Encoder is avaliable but there is no digital meter ,. so i can measure from CRO ?