Hi everyone,
I am trying to build an AC amplifying circuit using a piezoelectric transformer (PZT). I am using this PZT: https://www.steminc.com/PZT/en/single-layer-piezo-electric-transformer-68-khz.
I built a test setup just to confirm that my PZT would actually amplify the input voltage, but it seems like instead of amplifying the voltage, the PZT is reducing it. The voltage supplied to PZT (Vin) is within the specifications of the PZT and at resonant frequency. Here is a schematic of the test circuit:
On the schematic, the Vrms measured by Probe 1 (Vin to PZT) is less than the Vrms measured by Probe 2 (Vout from PZT). The signal at both probes is in phase.
I am new to PZTs, and I don't know why the PZT in my circuit does not increase the voltage of input signal. I couldn't find good examples of how to incorporate a PZT into the circuit. I would really appreciate any help!
Thanks so much,
Ilya
I am trying to build an AC amplifying circuit using a piezoelectric transformer (PZT). I am using this PZT: https://www.steminc.com/PZT/en/single-layer-piezo-electric-transformer-68-khz.
I built a test setup just to confirm that my PZT would actually amplify the input voltage, but it seems like instead of amplifying the voltage, the PZT is reducing it. The voltage supplied to PZT (Vin) is within the specifications of the PZT and at resonant frequency. Here is a schematic of the test circuit:
On the schematic, the Vrms measured by Probe 1 (Vin to PZT) is less than the Vrms measured by Probe 2 (Vout from PZT). The signal at both probes is in phase.
I am new to PZTs, and I don't know why the PZT in my circuit does not increase the voltage of input signal. I couldn't find good examples of how to incorporate a PZT into the circuit. I would really appreciate any help!
Thanks so much,
Ilya