But did it really work?
I am trying to get the circuit to work at the moment. I do not really care whether it will replel any animals. My problem is that:
a) I cannot get the circuit to work at all.
b) assuming I can get it to work, I cannot find a piezo that will support 80kHz. The only thing I could find was:
https://www.electro-tech-online.com...20Cylindrical20Ultrasound20Transducer_178.pdf . The salesman from the company said that I had to buy a minimum of 10 at 15.00USD a piece.
c) finally, even if I do get this transducer, the datasheet says that it needs Maximum drive voltage for PVDF transmitter is 400 Vpeak for a single pulse and
100 Vpeak for continuous pulses.`` This will blow the rest of the circuit I think.
So, my solution at this time is:
a) to try to get away with showing an 80kHz wave on an oscilloscope and use an LED to light up, since the think is ultrasonic anyway. I would worry about the transmitter latter on.
I just need to make sure the circuit actually works.
I have a feeling that the circuit is bogus and that I have been going around in circles. Any other reference to this circuit on the internet has no blog (except here), none that say that it has been tested or anything.
Any help you can provide would be most greatly appreciated.