ULTRASONIC_PEST_CONTROLLER

Published:2009/7/9 1:10:00 Author:May | From:SeekIC

This circuit consists of two basic parts: an oscillator tuned to 40 kHz, and a voltage doubler with pulse generator. The pulses are about 10 ms long and occur 2 -3 per s to reduce battery drain and increase the annoyance factor for a cat, dog, hedgehog, etc. The voltage doubling action increases the available output power for any given battery voltage.



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