the converter has twice gain than normal one.
As a result, the PZT adjustment range has been expanded.
2, I have input white noise to check the resonance of the PZT.
I want to increase the resonance frequency and reduce the peak because PZT resonance can interfere with control.
I was able to increase the 395Hz resonance a little by tightening the screws tighter.
I was also able to lower the peak by inserting rubber under the mirror mount, but it became unstable, so I removed it immediately.
modefied converter number is S2214278.