文档介绍：智能大功率超声波清洗电源的研制
曾东红1,2,李正中2,周光平2,钱盛友1
(,湖南长沙 410081;,广东深圳 518055)
摘要:介绍了一种基于PWM技术的智能超声波清洗电源的设计,详细介绍了PWM信号产生电路、单片机控制电路、功率放大电路、保护电路以及超声波电源与换能器的匹配设计,并给出了系统软件设计方案。设计的超声波电源控制精度高,参数调整方便且具有灵活多样的控制功能。
关键词:超声波清洗;频率跟踪;PWM信号;功率放大;阻抗匹配
中图分类号:TB517 文献标识码:A
Intelligent High-power ultrasonic cleaning Power Supply
ZENG Dong Hong 1, 2, LI Zheng Zhong2, ZHOU Guang Ping2, QIAN Sheng You 1
College of Physics and Information Science, Hunan Normal University, Changsha 410081,China;
of Electronic Engineering, Shenzhen Polytechnic, Shenzhen 518055,China)
Abstract: An intelligent ultrasonic cleaning power supply based on PWM technology is introduced. The PWM signal generating circuit, microcontroller circuit, power amplifier, protection circuit and the matching circuit are described in detail. Finally, the designing scheme of the systemic software is presented. The ultrasonic power provides flexible and diversified functions and is with high control accuracy, convenient to adjust its parameters.
Key words: ultrasonic cleaning; frequency tracking; PWM signal; power amplifier; impedance matching
1引言基金项目:国家自然科学基金项目(10874123)
作者简介:曾东红(1987-),男,江西人,硕士研究生,研究方向为功率超声
通讯作者:曾东红,E-mail:zdh316273350@
鉴于超声波清洗效果好、效率高、成本低等优点,超声波清洗机被广泛应用于电子、机械、钟表、光学、医疗、化纤、电镀等行业[1]。在超声波清洗设备中,超声波电源是其重要组成部分之一。现有的超声波电源大多数采用专用集成控制芯片(如SG3525、TL494) 或单片机产生PWM 脉冲信号, 经功率放大、阻抗和调谐匹配后,