DRV8323: Question about DRV8323

Jenson

Intellectual 2465 points

Part Number: DRV8323

Hi Team,

I have some quesiton about DRV8323.

What are the meanings of 120° and 180° in 120° commutation and 180° commutation, and what do they represent.
Why the sine wave commutation in the formula is 3 times the trapezoidal wave commutation. How did this triple come

Thanks

Jenson

over 4 years ago

0 Matt Hein over 4 years ago

TI__Mastermind 21805 points

Hello Jenson,

120 commutation is trapezoidal control, while 180 commutation is FOC or sine control. In sie control, all three phases are constantly switching, while in trap control only one phase is switching at a time. This results in the factor of 3 being applied in the sine case.

Please refer to these video resources:

Thanks,

Matt

0 Matt Hein over 4 years ago in reply to Matt Hein

TI__Mastermind 21805 points

Hi Jenson,

Can we move this question to the external forum? I don't see any confidential information here.

Thanks,

Matt

0 Matt Hein over 4 years ago in reply to Matt Hein

TI__Mastermind 21805 points

Hi Jenson,

Any feedback here?

Thanks,

Matt

0 Jenson over 4 years ago in reply to Matt Hein

TI__Intellectual 2465 points

Hi Matt,

Thanks for your help first! sorry for missing this message.

sure,we can move this question to external forum,but I don‘t know how to do it.Can you help me？

Thanks.

Jenson

0 Matt Hein over 4 years ago in reply to Jenson

TI__Mastermind 21805 points

Hi Jenson,

I will take care of it!

Thanks,

Matt

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DRV8323: Question about DRV8323