摘要
在LLC谐振变换器中,其谐振元件的参数设计对变换器工作性能有着重要影响。为解决LLC谐振变换器存在的谐振网络电压增益非线性变化、轻载时开关频率过大等问题,文章结合变换器的特性分析给出了谐振元件参数设计的一系列约束条件,在此基础上,总结了变换器谐振网络的电感、电容的设计步骤,并给出了变压器参数的选取方法。对一台500 W的LLC变换器的试验结果表明:文中提出的设计方法是可行的,能够达到设计需求。
The resonant element parameters design for LLC resonant converter has an important affect to the converter performance. To solve the problems of the voltage gain nonlinear changes, the switching frequency is too large when it works in light load, combined the characteristic analysis of converter, a series of constraint conditions for resonance element parameters are showed. On the basis of this, the paper summarizes the resonant network design steps of inductance, capacitanee, and transformer parameters selection methods. The experimental results from one 500 W LLC converter show that the proposed design method is feasible, it is possible to meet the design requirements.
出处
《通信电源技术》
2013年第1期1-4,共4页
Telecom Power Technology
关键词
LLC变换器
谐振元件
变压器
参数设计
LLC converter
resonant element
transformer
parameters design
作者简介
柏余(1989-),男,湖南永州人,在读硕士研究生,主要从事电力电子与电力传动研究。