半桥LLC谐振变换器中平面变压器的多物理场特性研究  

Research on Multiphysics Characteristics of Planar Transformer in Half-Bridge LLC Resonant Converter

作　　者：李子天 吴雨杰 李正之 王世山[1] LI ZITIAN;WU YUJIE;LI ZHENGZHI;WANG SHISHAN(Nanjing University of Aeronautics and Astronautics CAE,Nanjing 211106)

机构地区：[1]南京航空航天大学自动化学院,南京211106

出　　处：《磁性元件与电源》2021年第5期185-188,共4页Components and Power

摘　　要：随着隔离型变换器的发展,其对于输出功率和功率密度的要求不断提高,然而传统变压器由于其漏感和损耗等原因在高频时很难保证变换器的高效率。而平面变压器是解决这一困境的有效途径。本文针对半桥LLC谐振变换器,应用了平面变压器以减小变压器绕组阻抗和漏感,降低变压器损耗与温升。With the development of isolated converters,its requirements for output power and power density continue to increase.However,it is difficult for traditional transformers to ensure the high efficiency of the converter at high frequencies due to its leakage inductance and loss.The planar transformer is an effective way to solve this dilemma.This paper applies a planar transformer to the half-bridge LLC resonant converter to reduce transformer winding impedance and leakage inductance,and reduce transformer losses and temperature rise.

关 键 词：LLC谐振变换器 平面变压器 温升 

分 类 号：TM4[电气工程—电器]