MCF8316AEVM: Torque mode via PWM signal

JS Chuang

Part Number: MCF8316AEVM
Other Parts Discussed in Thread: MCF8316A, MCF8316D

The 8316C datasheet states that Iq_ref can be controlled via PWM in torque mode. However, on the MCF8316AEVM, PWM only achieves switching Iq_ref. Besides setting SPEED_LOOP_DIS/ILIMIT, are there any other registers that need to be set?

1 month ago

0 Venkatadri Shantaram84961 1 month ago

TI__Mastermind 25992 points

Hi JS,

MCF8316A implementation differs in that torque mode control is available only through Iq_ref configuration.

With MCF8316C, both torque and speed commands can be input through PWM, I2C, or analog interfaces.

MCF8316D features additional control loops: power loop and voltage mode, along with speed and current/torque modes. All of these can be commanded through PWM, I2C, or analog signals.

The input is generalized as a "reference", which can be a torque reference, speed reference, power reference, etc.

For new designs, we recommend MCF8316C or MCF8316D, which are pin-to-pin compatible with MCF8316A.

Thanks and Best regards

Venkatadri S