一种智能超声电源的设计

2016 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) Pub Date : 2016-10-01 DOI:10.1109/SPAWDA.2016.7830008

Jing Gong, Hong-bin He, Wei-jun Lin

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引用次数: 2

摘要

由于换能器的制造工艺和使用环境的影响，当换能器长时间工作时，谐振频率会发生漂移。因此在超声电源中安装频率自动跟踪装置是十分必要的。传统的频率自动跟踪装置存在跟踪范围小、误差大等缺点。介绍了一种基于单片机的新型超声电源。详细介绍了波形发生器、功率放大器和匹配网络的设计。提出了一种新的频率跟踪方法，解决了换能器频率漂移带来的问题，保证了换能器的输出效率。

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A design of intelligent power ultrasonic supply

Due to the influence of the manufacturing process and usage environment of the transducer, when the transducer works for a long time, the resonant frequency will drift. So it is necessary to have frequency automatic tracking device in the power ultrasonic supply. Traditional frequency automatic tracking devices have disadvantages of small tracking range, great error and so on. This paper introduces a new kind of power ultrasonic supply based on MCU. It will introduce the design of wave generator, power amplifier and matching network in detail. And it demonstrates a new method of frequency tracking to solve the problem caused by the transducer frequency drift and ensure the output efficiency of the transducer.

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2016 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA)

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