DRV8432: Slow Decay

ALbert Tello

Part Number: DRV8432

Hi Rick

I would like to ask when the motor is at high speed hoe slow decay can be optimaze4d for the inductance BFM ,

is any methid to control slow decay without loosing synchronism from the motor.

Regards

Albert Tello

0 Rick Duncan over 5 years ago

Hi Albert,

What do you mean "optimized for the inductance BFM"?

What type of motor?

What PWM frequency do you intend to use?

0 ALbert Tello over 5 years ago in reply to Rick Duncan

hi Rick

Sorry for the confusion , let me rephrease , How we can control Slow Decay using RESETAB RESET_CD the stepper motor loose sychronization .

Regards

Albert

0 Rick Duncan over 5 years ago in reply to ALbert Tello

Hi Albert,

RESET_AB/CD is not used to control slow decay. When RESET_AB or RESET_CD is low, the outputs are disabled. This acts like asynchronous fast decay.

To use slow decay the outputs should remain enabled, and switch from H/L or L/H to LL.
This is controlled at the PWM inputs.

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