however it seems like i only get power from the transistor-gate and nothing form the actual DC power source.
Please do not double post.
Where's the (simulated) meter connected? Of course the important thing is the voltage across the piezo.Is the capacitor supposed to be the Piezo or is it supposed to be the resistor?Of course, if you can supply a higher DC voltage in the real world you wouldn't have to be playing-around with resonant circuits.
You will destroy the transistor (and may already have) if you fail to use a base resistor (1K - 10K). To what peak-to-peak voltage have you set the signal generator?Please explain why you think this.
Note: I'm indicating you have to drive the BASE of the transistor with a PWM signal. No switching... no voltage... Just feeding DC won't do anything.
Try my driver posted in #22 and read my comments..You probably don't need the output capacitor - replace it with a short.You won't get anything from your circuit as there's no way for the transistor to get power...A capacitor ( such as a piezo) blocks dc current flow.Allan
I tried the circuit with no luck
Didn't read all the posts in this thread, but isn't it easier to use a MAX232 to drive a piezo.Like the do on an HC-SR4 ultrasonic sensor module.The MAX232 should be able to drive a piezo to ~30volt peak/peak.Leo..