铝合金铸轧用大功率超声波电源研制  

Study on high-power ultrasonic power supply apply for aluminum casting

作　　者：李健[1] 胡仕成[1] 樊广军[1] 吴昊[1] 张平[1] 

机构地区：[1]中南大学机电工程学院,长沙410083

出　　处：《现代制造工程》2011年第3期120-123,共4页Modern Manufacturing Engineering

基　　金：国家863计划资助项目(2008AA03Z103)

摘　　要：研究了一种具有频率自动跟踪和输出功率恒定及可调功能的功率超声电源,此电源采用单片机控制集成锁相环74HC4046来实现无相差变步长自动频率跟踪,并采用以单片机AT89C51与三相可编程脉冲宽度调制(PWM)集成芯片SA4828相结合的控制技术,达到恒功率及功率可调的目的。此外,该电源系统还具有智能恒压整流的功能。A certain of power ultrasonic supply which can realize automatic frequency tracing and changeable output power is investigated. Automatic frequency tracing with zero phase difference and changed step size is realized with integrated PLL 74HC4046 circuit which controlled by SCM. Combining using of AT89C51 and three phases programmable PWM integrated chip SA4828 can realize constant output power and changeable output power. Furthermore, this ultrasonic power can realize intelligence commutation with constant voltage.

关 键 词：功率超声电源 集成锁相环 脉冲宽度调制 智能恒压整流 

分 类 号：TB566[交通运输工程—水声工程]