Study and Implementation of Ultrasonic Generator Based on FPGA

摘要

For the problem that the excitation signal of ultrasonic treating machine is unitary, the paper aims to study and implement a kind of ultrasonic generator which the core technology is FPGA and DDS and its excitation signal can be selected. FPGA is used as the core control unit of ultrasonic generator and the hardware circuit design is completed in modular conception. By controlling the external key of hardware, the waveform and frequency of the ultrasonic generator's excitation signal can be quickly switched; the amplitude of excitation signal can be adjusted relatively.