My Dog non- Repeller

130

00:42:22

Internet Pecute Ultrasonic (above 20 kHz) Pet Dog Repeller is type I have.  Video below shows how well it doesn't work. At least, I know I am not alone.

https://www.youtube.com/watch?v=pu7mHw6YnoE

Left circuit is 9 volt battery supply and power on LED that lights when pushbutton switch is pressed.  It goes through circuit board and right circuit is what an oscilloscope shown connected across piezo buzzer terminals. Oscilloscope showed much sharper spikes.  Since piezo buzzer seems not to work l left 20 K ohm out of circuit.

Looks like I need a real piezoelectric buzzer if I get hound hearing sound output.

published 8 years ago

add comment in editor

EveryCircuit is an easy to use, highly interactive circuit simulator and schematic capture tool. Real-time circuit simulation, interactivity, and dynamic visualization make it a must have application for professionals and academia. EveryCircuit user community has collaboratively created the largest searchable library of circuit designs. EveryCircuit app runs online in popular browsers and on mobile phones and tablets, enabling you to capture design ideas and learn electronics on the go.