功率因数校正芯片L4981A的仿真建模及应用功率因数校正芯片L4981A的仿真建模及应用.pdf

Modeling and Simulation 建模与仿真, 2014, 3, 75-82 Published Online November 2014 in Hans. /journal/mos /10.12677/mos.2014.34011 Modeling and Application of PFC Chip L4981A Honglei Wang, Dunxin Bian, Hui Shan, Bing Wang Shandong University of Technology, Zibo Email:163.com th nd nd Received: Sep. 15 , 2014; revised: Oct. 22 , 2014; accepted: Nov. 2 , 2014 Copyright © 2014 by authors and Hans Publishers Inc. This work is licensed under the Creative Commons Attribution International License (CC BY). /licenses/by/4.0/ Abstract In order to improve the efficiency of power supply design using PSIM simulation software in power supply design process, combining with the working principle and characteristics of L4981A, a L4981A simulation model is established which is the lack of PSIM Library. An APFC circuit in ST AN827 application note is used to simulate and verify the model of L4981A. Com- pared with its application note, it is found that the static characteristics of modeling match well with the application note. Results show that the model can describe the operating characteristic of actual circuit. The model has a very good reference value in analysis and design of power equipment. The idea provides an effective analysis and implementation method for other con- trol chips. Keywords L4981A, Power Factor Correction, Simulation Modeling 功率因数校正芯片L4981A的仿真建模及应用 王红蕾，边敦新，单 辉，王 冰 山东理工大学，淄博 Email:163.com 收稿日期：2014年9月15 日；修回日期：2014年10月22 日；录用日期：2014年11月2 日 75 功率因数校正芯片L4981A 的仿真建模及应用 摘 要 为了在电源开发设计过程中利用PSIM仿真软