摘要
针对带有功率因素校正功能的LLC谐振变换器,提出了一种新型EIE组合磁材磁集成变压器,采用解耦集成的方式将PFC电感、LLC谐振电感以及LLC高频变压器这三个独立的磁性元件集成到一起。详细介绍了磁集成变压器设计方法,并利用ANSYS Maxwell仿真软件对EIE组合磁材磁集成变压器进行建模仿真。比较锰锌铁氧体材料与铁硅铝磁粉芯材料的特点后,为了提高变压器的抗饱和能力,选用I型磁芯材质为铁硅铝磁粉芯。最后,搭建了一台输出功率为100 W的实验样机证实了EIE组合磁材磁集成变压器设计方法的可行性。
An“EIE”magnetic integrated transformer made up of different soft magnetic materials is proposed for LLC resonant converter with power factor correction function,which integrates PFC inductor,LLC resonant inductor and LLC high-frequency transformer by decoupling integration.The design method of magnetic integrated transformer is introduced in detail,and the transformer is modeled and simulated by ANSYS Maxwell simulation software.For improving the anti-saturation ability of transformer,I-type magnetic core material is selected as Fe-Si-Al magnetic powder core after comparing the characteristics of Mn-Zn ferrite material and Fe-Si-Al magnetic powder core material.Finally,the effectiveness of the design is verified through an experimental prototype with 100 W power.
作者
徐家锐
潘永雄
李键文
Xu Jiarui;Pan Yongxiong;Li Jianwen(School of Physics and Optoelectronic Engineering,Guangdong University of Technology,Guangzhou 510006,China)
出处
《电子技术应用》
2023年第5期119-123,共5页
Application of Electronic Technique
