TMDSCNCD28388D: issue about fast current loop

Hi Navaneeth,

Thanks for your reply.

This customer is trying to build a multi-axis high-speed motor control using FSI and FCL, and the two motors are connected coaxial. The rotor position of the second motor and the given value of the current loop are calculated by the controller of the first motor and then sent to the controller of the second motor through FSI, which means that there is no QEP in the controller of the second motor, but the rotor position information is directly obtained. In this case, can he use the FCL algorithm provided by TI in the second motor controller?

Thanks & Regards

Yale Li

Hi Navaneeth,

May I ask to know the status of this thread?

Thanks & Regards

 Yale Li

Hello Yale, Thank you for sharing additional details. angle info through FSI should work and its latency will add to the execution time.

Hi Navaneeth,

Thanks for reply.

After the controller receives the position information sent by the FSI, can the FCL complete the calculation and generate PWM within 2us?

Thanks & Regards

Yale Li