How Piezo Sounder Drivers Increase Sound Pressure Levels Across a Wider Battery Voltage Range
Piezo sounders create warning or alert noises in many applications, oftentimes in portable, battery-powered, and space-saving products. These devices consist of a ceramic element attached to a metal plate, where the ceramic element uses the piezoelectric effect to distort its shape when a voltage is applied. As it contracts and expands due to the varying voltage, the attached plate vibrates audibly.
