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DiscoverCircuits.com  --   Dave's Circuits
Circuits designed by David Johnson, P.E.

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Last Updated on:  07/25/2009 07:05:10 AM

Beeper & Buzzer Circuits

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HIGH SOUND OUTPUT BEEPER CIRCUIT
I you need a real loud beeper, this circuit delivers about 110db (12 inches away) from a 9v battery using a single inexpensive C-MOS IC. An off-the-shelf piezoelectric beeping device is driven at resonance to insure maximum efficiency. By changing the control IC to a 74AC14, the same circuit can operate from 3v and 1.5v batteries. Published in Electronic Design, Aug 5, 1993

Circuit power reminder beeper designed by Dave Johnson, P.E. (June 3, 2000)

Beeper & Buzzer Circuits

Master Schematic Category List - David A. Johnson, P.E.
 
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