DRV10983: Resolution

na na78

Guru 16770 points

Part Number: DRV10983

DRV10983 has flexible user interface and it is capable of 3 type of input to drive a motor (PWMin, analog and I2C).

How to express its resolution as N-bits?

BestRegards

over 8 years ago

0 Innocent Irakoze over 8 years ago

TI__Prodigy 90 points

Na na78,

The resolution is 9 bits.

Thanks,

Innocent

0 na na78 over 8 years ago in reply to Innocent Irakoze

Guru 16770 points

Hi Innocent

Thank you for your reply.

In such a case, how to get resolution by my self?
Would you please tell me your way of thinking, if possible?

BestRegards

0 Krushal over 8 years ago in reply to na na78

TI__Expert 3010 points

Hello,

Increase PWM input duty cycle and monitor phase voltage for increase in voltage. You have to increase PWM in smallest possible steps like 0.1% or lower and check for increase in voltage. The inverse of smallest PWM duty cycle change which causes increment in voltage is resolution (1/PWM duty).

Regards.

Krushal

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DRV10983: Resolution