半桥型LLC变换器稳态建模与参数设计  

Model and parameter design of half bridge LLC converter

作　　者：李尹泉 尹斌[1] 康亚东 

机构地区：[1]河海大学能源电气学院,江苏南京211100

出　　处：《电子设计工程》2014年第21期179-181,共3页Electronic Design Engineering

摘　　要：本文介绍了LLC型谐振变换器的主电路结构和工作原理。通过基波分析法对半桥型LLC谐振变换器进行稳态建模分析,得出了谐振腔的等效电路和直流增益表达式。基于稳态模型的基础上,给出了半桥型LLC谐振电容、谐振电感和励磁电感的设计方法。最后通过saber仿真验证了半桥型LLC谐振变换器稳态模型与参数设计方法的正确性。This paper introduces the main circuit structure and working principle of LLC resonant converter. Through the analysis of steady state model of LLC resonant converter, based on FHA, equivalent circuit of resonant cavity and DC gain expressions are obtained. Based on the steady-state model, the design method of LLC resonant capacitance, inductance and excitation inductance are given. The accuracy of the steady-state model and the design method of parameters are proved by saber simulation.

关 键 词：LLC 谐振半桥 稳态建模 基波分析法 

分 类 号：TN302[电子电信—物理电子学]