CAJ | 학술논문

对全桥LLC谐振变换器的工作原理进行了分析，并采用高性能谐振控制器MC33067设计了一款输入为DC300～400 V、输出为DC48V／12A的原理样机，同时利用Saber仿真软件对其进行辅助设计．仿真结果表明，其输出电压稳定在48 V左右、输出纹波小于±0．5％，理论设计合理；样机测试结果表明，本文所设计的全桥LLC谐振变换器能够在全负载范围内实现软开关，效率达到了93％以上，符合设计要求．
대전교LLC해진변환기적공작원리진행료분석，병채용고성능해진공제기MC33067설계료일관수입위DC300～400 V、수출위DC48V／12A적원리양궤，동시이용Saber방진연건대기진행보조설계．방진결과표명，기수출전압은정재48 V좌우、수출문파소우±0．5％，이론설계합리；양궤측시결과표명，본문소설계적전교LLC해진변환기능구재전부재범위내실현연개관，효솔체도료93％이상，부합설계요구．
This paper analyzes the theory of LLC resonant converter that takes the full‐bridge as the main circuit .An program for the full‐bridge converter based on MC33067 is intro‐duced .Finally a prototype of 300~400 V input ,48 V/12 A output was fabricated and tested . Using Saber software in designing the full‐bridge LLC resonant converter .The experimental results proved that the output voltage is stable at 48 V ,output ripple is less than ± 0 .5% ,ef‐ficiency is more than 93% ,achieve the design requirements .