I have two piezoceramic materials with different voltage rating; One of them requires a voltage range from 0-1000V (1kV rated) and the other one has 0-500V (500V rated).
I have an amplifier that can go from -500 to 1500 V.
Question: Does my suggested circuit do the job?
I have attached two different scenarios; without diode (case#1) and with diode(case#2).
Why diode: to protect the amplifier from piezo discharge. But when I put diode the voltage
difference across (500V rating piezo) will go from 1kV to 1.5kV (still 500V voltage difference) but
I do not know if this damages the piezo meaning that instead of using 0-500V using 1kV-1.5kV
(same voltage difference)?
Thanks for your time looking into my case study.