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RE: DRV11873: Question of PWM resolution and motor contorl

Hi Krushal

Thank you for your reply.

>Measure resistance using multi-meter or something between 2 phase cables U-V, U-W or V-W.
The resistance between two phase is 0.8ohm.

As the other information of motor (VCC=12V),
Startup torque : 50mNm
Startup current : 5.5A
RotationSpeed (no load) : 11700rpm

In addition, we found motor start up fails with the higher voltage.

(VCC OK/NG)
8V 10/0
9V 1/9
10V 8/2
11V 4/6
12V 3/7
13V 2/8
14V 0/10
15V 0/10

What do you think the cause of it?

BestRegards

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