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Original question:

BOOSTXL-DRV8301: The actual current is much less than Id_ ref

BOOSTXL-DRV8301: How to calculate the USER_MOTOR_MAX_CURRENT value

F.F
Genius 3095 points
Part Number: BOOSTXL-DRV8301

Dear Yanming:

In instaSPIN, how can I get the value of USER_MOTOR_MAX_CURRENT? Is it the peak value of rated current?

For example, The rated current of the motor is 8.2A, Then is the USER_MOTOR_MAX_CURRENT  equal to 8.2*1.414=11.6A?

#define USER_MOTOR_MAX_CURRENT          (11.6)

Best regards

  • 0
    TI__Guru** 109780 points

    The value of USER_MOTOR_MAX_CURRENT is the maximum torque current that's the maximum output value of the speed controller. It has no direct relevance to the rated current of the motor.  You might set it to 1.0 to 2.0 times of the rated current according to the required torque output.