基于锁相环路的教学方法  

Teaching Method Research Based on Phase-locked Loop

作　　者：王延峰[1] 郭淑婷[1] 杜保强[1] 

机构地区：[1]郑州轻工业学院电气信息工程学院,河南郑州450002

出　　处：《实验室研究与探索》2015年第3期177-180,共4页Research and Exploration In Laboratory

基　　金：国家自然科学基金项目(U1304618);河南省教育厅科技攻关项目(2014A610009);郑州轻工业学院博士基金(2011BSJJ031);青年教师基金(2012XII009)

摘　　要：以"锁相技术"课程的教学研究为出发点,针对在锁相环路原理应用的教学中存在的困难,提出一种类比教学方法,在讲述传统锁相环路工作原理的基础上,结合等效鉴相频率原理,引入异频鉴相的新型锁相环路进行对比教学,并设计相应的应用型实验,加深了学生对锁相环路的理解和应用。同时,新理论和新方法的引入,也激发了学生的学习兴趣和动力,取得了良好的教学效果。With teaching of the curriculum ＂phase-locked loop （PLL）＂ as the starting point, in view of the existing difficulties in PLL application in teaching, we put forward a kind of analogy teaching method, based on traditional PLL about the working principle, combined with the principle of equivalent phase comparison frequency. The method uses the different frequencies phase detection to design the new PLL teaching, and designs appropriate application-oriented experiments. These experiments deepen the students＇ understanding and application of PLL. At the same time, the introduction of new theories and new methods stimulate the students＇ interest and motivation, and obtain the good teaching effects.

关 键 词：锁相环路 类比教学 等效鉴相频率 异频鉴相 

分 类 号：TM935[电气工程—电力电子与电力传动]