天津工业大学学报2024，Vol.43Issue(3)：66-74,9.DOI:10.3969/j.issn.1671-024x.2024.03.009
高频双频Buck变换器平面集成磁件优化设计
Optimal design of planar integrated magnetics for high-frequency double-frequency Buck converter
摘要
Abstract
In order to solve the problem that the efficiency and power density of double frequency Buck converters are still relatively low,which are caused by insufficient switching devices and magnetic components,a double-frequency Buck converter with high efficiency and high power density is proposed.Converter will work in CCM mode,using decoupled planar integrated inductors to complete the integration of the magnetic components of the system.Combined with the integration method of magnetic components,the limited number of PCB layers and the char-acteristics of the converter,the parameters of the double frequency Buck converter are given.Then,a design method of planar magnetic components is proposed,and the optimal design of the magnetic components of the system is completed.Finally,based on the third-generation semiconductor SiC devices and planar integrated magnetic components,a double-frequency Buck converter with a rated power of 200 W and the switch frequency of 400 kHz is designed.The results show that the peak efficiency of the converster will reach 96.1％,and the power density will be 46.1 W/in3(1 in=25.4 mm).These confirm the correctness and effectiveness of the double-frequency Buck converter design method.关键词
双频Buck变换器/平面磁件/高频高效高功率密度/SiC器件Key words
double frequency Buck converter/planar magnetics/high frequency,high efficiency and high power density/SiC devices分类
信息技术与安全科学引用本文复制引用
高圣伟,于冠恒,赵虹宇..高频双频Buck变换器平面集成磁件优化设计[J].天津工业大学学报,2024,43(3):66-74,9.基金项目
天津市科技计划项目(20YDTPJC01520) （20YDTPJC01520）
