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Driving Audio Piezoelectric Transducers


关键词: audio driver, BTL, bridge tied load, PZT, piezoelectric, audio transducer



Abstract: This audio application note identifies and describes the key elements in designing a driver for a piezoelectric transducer (PZT). The relationship between source impedance and sound pressure level is measured, single-ended (S/E) and bridge-tied load (BTL) driving schemes are compared and the input impedance of a PZT is characterized.



Driving Audio Piezoelectric Transducers.pdf