DRV2604

Vayne Wang

Prodigy 245 points

What is the judgment requirement of tracking the resonant frequency ？

over 8 years ago

0 Kelly Griffin over 8 years ago

TI__Genius 10422 points

Hi Vayne,

We track the resonance by sensing the back-EMF signal of the LRA. The resonance tracking algorithm is based on the phase. It is not a frequency sweeping algorithm.
Does this answer your question?

0 Vayne Wang over 8 years ago in reply to Kelly Griffin

Prodigy 245 points

Would you like to give me an example? What‘s the phase relationship between resonant and non-resonant ？thanks.
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