PMSM FW v3.2 with tacho output

supakit · ‎2013-08-22

Posted on August 22, 2013 at 11:10

Hi

I am a PMSM FOC v3.2 user.

How can i output tacho pulse which its frequency is propotional with rotor speed.

MCU is STM32F103CB in senserless Cordic.

Thanks in advance.

Gigi · ‎2013-08-26

Posted on August 26, 2013 at 14:33

Ciao,

can you explain better your request?

What do you mean with the following question?

How can I output tacho pulse which its frequency is propotional with rotor speed.

Ciao

Gigi

supakit · ‎2013-08-30

Posted on August 30, 2013 at 16:04

Hi Gigi

it mean STM32 generates the pulse train which its frequency is propotional with rotor speed.

for example;

current rotor speed is 1,500RPM.

And STM32 will generate pulse train which its frequency is 100Hz. (4 pole pairs)

also 110Hz at 1,650RPM

This is a feature of Tacho Gen.

Thanks