> -----Original Message-----
> From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On
Behalf
> Of Mark E. Skeels
> Sent: 23 February 2010 16:38
> To: Microcontroller discussion list - Public.
> Subject: [EE] piezo transducer failure mode on overvoltage.
> 
> List,
> 
> I have an application using a audio piezo-transducer and it is rated
at
> 5V; we want to run it at 9V; because it is louder.
> 
> I am wondering what the failure mode would be for a device like this.

Is this a bare Piezo element, or a complete buzzer including the driver
circuit?  i.e. do you just supply a DC voltage to make it buzz or do you
drive it with an AC waveform?

Mike

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