Title :
FPGA-based resonant-frequency-tracking power amplifier for ultrasonic transducer
Author :
Shiang-Hwua Yu;Yi-Fei Hsieh;Pei-Ying Lai;Yi-Ling Chen;Chih-Po Yang;Kenneth Lin
Author_Institution :
Electrical Drives and Controls Lab, Dept. Electrical Engineering, National Sun Yat-sen University, Kaohsiung City, Taiwan
Abstract :
An FPGA-based class-D power amplifier is designed for driving an ultrasonic transducer. The amplifier is capable of automatically detecting and tracking the transducer´s resonant frequency, driving the transducer right at its resonance for maximizing vibration efficiency. The design focuses on devising resonant frequency tracking and optimal modulation algorithms that are suitable for FPGA implementation.
Keywords :
"Acoustics","Welding","Transducers"
Conference_Titel :
Applied Electronics (AE), 2015 International Conference on
Print_ISBN :
978-8-0261-0385-1
