Title :
A drive circuit for piezoelectric devices with low harmonics content
Author :
Ozeri, Shaul ; Shmilovitz, Doron ; Wang, Chua-Chin
Author_Institution :
Tel-Aviv Univ., Tel-Aviv, Israel
Abstract :
This paper presents a high frequency low harmonics content AC source consisted of two phase shifted resonant legs, suitable for driving piezoelectric devices such as those employed in ultrasound radiators. The inverter is characterized by high efficiency, low harmonic distortion, good dynamic response, and simplicity of load power control. Particularly low harmonic content is attained by the proper phase shift between the two inverter legs.
Keywords :
analogue circuits; circuit resonance; driver circuits; dynamic response; harmonic distortion; invertors; piezoelectric transducers; AC source; drive circuit; dynamic response; inverter; load power control; low harmonic distortion; phase shifted resonant leg; piezoelectric device; piezoelectric transducer; Capacitors; Circuits; Frequency; Impedance; Leg; Piezoelectric devices; Piezoelectric transducers; Resonance; Vibrations; Voltage;
Conference_Titel :
Circuits and Systems, 2009. ISCAS 2009. IEEE International Symposium on
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-3827-3
Electronic_ISBN :
978-1-4244-3828-0
DOI :
10.1109/ISCAS.2009.5117950
