Research on the Frequency Automatic Tracking in Ultrasonic Power Based on Fuzzy-DPLL

摘要：

　　Traditional frequency-tracking technique of ultrasonic power often adopts analog phase-locked loop circuit.But it has some defects,such as the narrow iocked-inrange and the tendency to lose phase-locked with a sudden change in load,etc.Therefore,this paper proposes a composed control strategy which combines a digital fuzzy controller with phase-locked loop in DSP,and the working principle and design method are gived.The experimental results show that the ultrasonic power using Fuzzy-DPLL can realize quick and accurate frequency tracking,and it can make the vibrate system work stably and efficiently,and it improves the efficiency of the power supply.

关键词： Ultrasonic Power Phase-locked Loop Frequency Tracking Fuzzy Controller

作者: Bai-da QU Zheng-long NI

作者单位: Key Laboratory of Advanced Process Control for Light Industry Ministry of Education,Jiangnan University,Wuxi,214122,China

会议类型: 国际会议

会议名称: 2013 2nd international Conference on Opto-Electronics Engineering and Materials Eesearch(2013第二届光电工程与材料研究国际会议)(OEMR2013)

会议地点: 郑州

会议语种:英文

页码: 797-801

在线出版日期: 2013-10-19（万方平台首次上网日期，不代表论文的发表时间）