焊线机超声波发生器数字化频率跟踪系统设计

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英文篇名：Design of Wire Welding Machine Ultrasonic Generator Digital Frequency Tracking System 作者：柯昌锵 英文作者：KE Chang-qiang;College of Mechanical and Electrical Engineering,Guangdong University of Technology; 关键词：超声波发生器 ; FPGA ; 频率跟踪 ; 数字鉴相器 英文关键词：ultrasonic generator;;FPGA;;frequency tracking;;digital phase detector 中文刊名：JXKF 英文刊名：Mechanical & Electrical Engineering Technology 机构：广东工业大学机电工程学院; 出版日期：2014-10-20 出版单位：机电工程技术 年：2014 期：v.43;No.271 基金：广东省战略性新兴产业专项资金LED产业项目(编号:2011A081301001、2012A080303004) 语种：中文; 页：JXKF201410001 页数：5 CN：10 ISSN：44-1522/TH 分类号：7-11

摘要

焊线机超声引线键合过程中,由于温度、压力、环境等因素的变化会导致超声换能器的谐振频率发生漂移。在分析超声换能器电特性的基础上,阐述了阻抗相位反馈调谐的原理以及基于FPGA的数字化频率跟踪系统的设计,与传统的方法相比,系统跟踪响应速度快,跟踪实时性好,而且跟踪频率范围宽,具有较强的实用性。
        In the process of wire welding machine ultrasonic wire bonding,the resonance frequency of the ultrasonic transducer is drifted due to factors such as temperature,pressure,environment change. The principle of impedance phase feedback tuning was expounded based on the analysis of electrical characteristics of ultrasonic transducer,and the digital frequency tracking system was designed based on FPGA. Compared with the traditional method,this tracking system has some advantages such as tracking system response speed,good real-time tracking,wide track frequency range and strong practicability.

引文

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