DRV2667EVM-CT: Correct operation for a constant voltage to the piezoelectric crystal

Ariel Etinger

Part Number: DRV2667EVM-CT
Other Parts Discussed in Thread: DRV2700, DRV2667

We started working with the development board below
In favor of activating a piezoelectric crystal
Our crystal requires a constant and stable voltage in favor of its bending
When we turned on the driver we saw that it outputs a momentary voltage
Is there a way to turn it on so that it outputs a constant voltage?
Thank you and good day
Ariel

9 months ago

0 Sydney Northcutt 9 months ago

TI__Genius 9940 points

Hi Ariel,

Thanks for reaching out. This is not possible with the internal signal generator on the DRV2667, but you could do this by supplying an analog signal externally. If you decide to do this, I recommend looking into DRV2700.

Regards,
Sydney Northcutt

Motor drivers

Motor drivers forum

DRV2667EVM-CT: Correct operation for a constant voltage to the piezoelectric crystal