Part Number:DRV2700
Hi experts.
I have already asked a question regarding the DRV before. Now I have looked more into the details and have some more questions:
First some information:
- I am using this as the motor: LEGS Linear LS15 from https://piezomotor.com/produkt/ls15/
- I have a DAC to create the control signal for the motor (0 to 5V)
- Desired motor voltage (DRV output) 0 to 45V
- Desired frequency: up to 1.200Hz
- Capacity of the motor is 680nF (not 100% sure about that)
Questions:
1. If I input a sinwave from 0 to 5V, can the DRV amplify that to the same sinwave but from 0 to 45V?
2. Is figure 22 in chapter 9.2.1 in the user manual the corresponding example to my case?
3. Since I only need positive voltage, I connect my piezo element between Out+ and ground. Out- remains unconnected?
4. Since my gain should not change, should I connect the gain inputs to Vcc and GND or to the microcontroller to keep them adjustable?
5. My motor has 4 legs that should work all independently. That means I need 4 DRVs, because Out+ and Out- is coupled?
6. If I connect the DAC to the DRV I only need to connect IN+, right? IN- remains unconnected?
Sorry for all that questions. It would be a huge support, if you could help me out.
Thanks
Sebastian
