This paper presents the design, characterization, and testing of an ultrasonic transducer driver capable of arbitrary waveform generation with bandwidth up to 1MHz and output range to ±96V. The architecture is derived from bridged class-D switching amplifiers and has a 5-level power stage. The proposed device was implemented with 8 synchronized channels and an all-digital control circuitry to transmit guidedwave ultrasound signals using custom piezoelectric multi-element array transducers, allowing programmable mode selectivity.
A 5-Level, 1 MHz, Class-D Ultrasonic Driver for Guided-Wave Transducer Arrays / Giannelli, P.; Bulletti, A.; Granato, M.; Frattini, G.; Calabrese, G.; Capineri, L.. - In: IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL. - ISSN 0885-3010. - ELETTRONICO. - 66:(2019), pp. 1616-1624. [10.1109/TUFFC.2019.2924943]
A 5-Level, 1 MHz, Class-D Ultrasonic Driver for Guided-Wave Transducer Arrays
Giannelli, P.Investigation
;Bulletti, A.Investigation
;Calabrese, G.Supervision
;Capineri, L.
Conceptualization
2019
Abstract
This paper presents the design, characterization, and testing of an ultrasonic transducer driver capable of arbitrary waveform generation with bandwidth up to 1MHz and output range to ±96V. The architecture is derived from bridged class-D switching amplifiers and has a 5-level power stage. The proposed device was implemented with 8 synchronized channels and an all-digital control circuitry to transmit guidedwave ultrasound signals using custom piezoelectric multi-element array transducers, allowing programmable mode selectivity.
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