Feedback sine wave driver design for ultrasonic transducers P. Schweitzer, E. Tisserand, A. Hamed, J. Andréa and F. Coutard Eur. Phys. J. Appl. Phys., 47 1 (2009) 12703 Published online: 17 February 2009 DOI: 10.1051/epjap:2008181