Am a hobbyist beginner with no prior electrical engineering knowledge (though can follow a basic circuit), so please bear that in mind when giving your valued advice! am following an instructable to build a piezoelectric circuit project.
The instructions say that the piezo elements generate AC and not DC so a bridge rectifier made of four diodes needs to be added, since the piezo elements will cancel each other's output if these diodes are not included.
6 piezo elements and 1 bridge rectifier is called for per piezo element to prevent this, however only one bridge rectifier is shown for 3 piezo elements in the instructions.
So far, I've followed the circuit below with 3 piezo elements and one bridge rectifier:
However, I'm aware that another 5 bridge rectifiers to be added (the other 3 piezo elements are underneath the white board I think). I'm looking for the following:
1) Can anyone describe the circuit diagram I should follow to include the additional 5 bridge rectifiers? here's the current circuit
I realize that each bridge rectifier should be connected on the silver wire connecting the piezos in the jpg, but then does that mean I need to connect all six wires from the rectifiers back to the - and + of the battery?
2) Can anyone describe/explain how to connect the circuit diagram with the rectifiers, capacitor + switch
3) An idea of what type of capacitor is best to use here (maybe a ceramic capacitor that can handle 100V, as it should be x3 the potential highest output which is around 27V? but may be incorrect)
Thanks for your help