High-voltage amplifier with DC adaptive capability for piezoelectric acoustic transmitter/actuator

• Autorzy: Niebergal J. , Caputa K. , Zielinski A.
• Języki publikacji: EN

Abstrakty

EN

The piezoelectric element of an acoustic transducer requires a high voltage drive signal. This paper describes the development of a compact high-voltage amplifier (HVA) capable of driving piezoelectric elements and providing the additional capability of a DC response. This opens the possibility to control the DC displacement of an active array of transducers, which would not be possible using a step-up transformer due to the lack of a DC response. This HVA is particularly suited for low frequency operation, where the elimination of the transformer will provide the greatest benefit due to its large size, cost and weight at these frequencies. The HVA is very compact allowing large-scale integration, and therefore can be utilized for driving large arrays of transducers. Such an array could facilitate an active correction system driven by the DC signal from the amplifier. Considering the target application for large multi-element transducer arrays, design goals have been to minimize the size and cost. The features and benefits of the HVA will be presented.

• Wydawca: Polskie Towarzystwo Akustyczne. Oddział Gdański
• Czasopismo: Hydroacoustics
• Rocznik: 2012
• Tom: Vol. 15
• Strony: 153--162
• Opis fizyczny: Bibliogr. 3 poz., rys., tab.

Twórcy

autor

Niebergal J.

autor

Caputa K.

autor

Zielinski A.

• 1University of Victoria, Dept. of Electrical and Computer Engineering P.O. Box 3055 STN CSC Victoria, B.C., Canada, V8W 3P6,

Bibliografia

• [1] IEEE, Std 1101.1-1998, IEEE Standard for Mechanical Core Specifications for Microcomputers Using IEC 60603-2 Connectors, 1998.
• [2] PI, Basic Designs of Piezoelectric Positioning Drives/Systems (Online), GmbH & Co. KG., 2011, cited 3/18/2012. Available at: www.physikinstrumente.com/en/products/ prdetail.php?sortnr=400800.00
• [3] R. E. Aldrich, Deformable Mirror Wavefront Correctors in “Adaptive Optics Engineering Handbook”. Marcel Dekker Inc., 2000.