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DiscoverCircuits.com  --   Hobby Corner
 Last Updated on:  07/10/2008 08:39:48 PM

Very Loud Piezoelectric Beeper Circuit
This circuit generates a continuous tone instead of a pulsing one. The hobby circuit delivers about 110db (12 inches away) from a 9v to 12v source using a single inexpensive C-MOS IC. An off-the-shelf piezoelectric beeping device from Panasonic is driven at resonance to insure maximum efficiency.

Click on Drawing to view PDF

Very Loud Beeper Circuit designed by Dave Johnson, P.E. (June 3, 2000)

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