| 跟随型PWM控制LLC变换器的分析与实现 |
| |
| 引用本文： | 管松敏,张超,于锁平,陈乾宏.跟随型PWM控制LLC变换器的分析与实现[J].电工电能新技术,2011,30(4):40-45. |
| |
| 作者姓名： | 管松敏 张超 于锁平 陈乾宏 |
| |
| 作者单位： | 1. 南京航空航天大学航空电源重点实验室,江苏南京,210016
2. 立德电子(江苏)有限公司,江苏镇江,212000 |
| |
| 基金项目： | 国家自然科学基金资助项目(51077069);江苏省自然科学基金资助项目(BK2009372) |
| |
| 摘 要： | LLC谐振变换器在输出限流时会工作于PWM控制模式,而现有文献缺乏对PWM控制LLC谐振变换器的分析.为此,本文针对LLC变换器,比较了对称和不对称PWM控制策略,提出了一种新型的PWM控制策略-跟随PWM控制.论文分析了其工作原理,讨论了占空比大小对变换器软开关特性的影响,给出了控制策略的实现方法.最后针对350V ...
|
| 关 键 词： | LLC谐振变换器 PWM控制策略 软开关 |
Analysis and realization of LLC resonant converter with following PWM control strategy |
| |
| GUAN Song-min
,
ZHANG Chao
,
YU Suo-ping
,
CHEN Qian-hong.Analysis and realization of LLC resonant converter with following PWM control strategy[J].Advanced Technology of Electrical Engineering and Energy,2011,30(4):40-45. |
| |
| Authors: | GUAN Song-min ZHANG Chao YU Suo-ping CHEN Qian-hong |
| |
| Affiliation: | 1(1.Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China; 2.Leader Electronics Co.,Ltd.,Zhenjiang 212000,China) |
| |
| Abstract: | LLC resonant converter will work with PWM control mode during current-limiting condition.But few literatures address the characteristics of LLC resonant converter with PWM control mode.In this paper,symmetrical PWM control strategy and asymmetrical PWM control strategy are discussed and a novel PWM control strategy is proposed.Based on the illustration of the operating principles,the soft-switching characteristic of the duty cycle is analyzed in detail.The results of analysis and experiment on a 48V/480W converter verify that this control scheme could realize the soft-switch control under the constant duty cycle to the converter. |
| |
| Keywords: | LLC resonant converter PWM control strategy soft switching |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
