DRV8823: DRV8823 Slow-Decay

kerr chang

Genius 4075 points

Part Number: DRV8823

Hi Team

IF I want setting Slow-Decay. How many pps for Step motor is Slow-Decay setting time?

over 6 years ago

0 Rick Duncan over 6 years ago

TI__Guru** 114905 points

Hi Kerr,

Can you clarify your question?

Are you asking if you can use slow decay at 0 pps?

The pps in slow decay depends on the motor parameters (resistance and inductance), the system voltage, and the current regulation (VREF) setting.

It is best to monitor the current through the windings to confirm the desired result.

0 kerr chang over 6 years ago in reply to Rick Duncan

Genius 4075 points

Hi Sir

The motor factory recommends that the stepping motor should use Mixed-Decay.
and slow decay is used for the single-phase DC motor.

Is it correct?

Thank you !!

0 Rick Duncan over 6 years ago in reply to kerr chang

TI__Guru** 114905 points

Hi Kerr,

If the motor manufacturer recommends these setting, it should be correct for the motors manufactured by them.

In general, using these settings is a good starting point.

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DRV8823: DRV8823 Slow-Decay