车载逆变电源的设计与实现  

Design and Implementation of Vehicle Mounted Inverter Power Supply

作　　者：肖宝森[1] 谢安娜 黄利元 刘林[1] XIAO Baosen;XIE Anna;HUANG Liyuan;LIU Lin(Xiamen University Tan Kah Kee College,Zhangzhou 363105,China;Xiamen Tuobao Technology Co.,Ltd,Xiamen 361026,China)

机构地区：[1]厦门大学嘉庚学院,福建漳州363105 [2]厦门拓宝科技有限公司,福建厦门361026

出　　处：《厦门理工学院学报》2024年第3期44-51,共8页Journal of Xiamen University of Technology

基　　金：福建省中青年教师教育科研项目(科技类)“中红外强场驱动下拓扑绝缘体表面态高次谐波的研究”(JAT210630);教育部产学合作协同育人项目“新工科背景下机器人与物联网实验基地的建设”(202101015010)。

摘　　要：为解决车载电源的转化问题,提出一种将汽车车载电源从直流12 V转化为交流220 V的车载逆变电源设计方法。该方法将直流12 V作为输入,通过前级升压和后级逆变2个功率转换电路,得到220 V/50 Hz的正弦交流电压。前级升压电路以SG3525作为主控芯片,采用推挽变换电路拓扑结构,利用高频变压器进行隔离升压,通过设计直流母线电压负反馈电路,避免出现直流母线电压的过压;后级逆变电路以EG8010作为主控芯片,采用全桥拓扑结构和SPWM控制技术,通过设计过压过流保护电路和过温保护电路,避免电路过压和过温。实验结果表明,该车载逆变电源在输入直流电压为(12±1.5) V的范围内均可输出稳定的交流电压(219.5~220.1 V),且整机测试效率保持在97.5%左右,具备良好的参数性能。To address the conversion of vehicle power supply,a design of an automotive inverter power supply is proposed,which converts direct current 12 V to alternating current 220 V.This design takes direct current 12 V as input and obtains a sinusoidal alternating current voltage of 220 V and 50 Hz through two power conversion circuits:a front-end boost and a back-end inverter.The front-end boost circuit uses SG3525 as the main control chip,adopts a push-pull conversion circuit topology,and uses a high-frequency transformer for isolation boost.By designing a negative feedback circuit for direct current bus voltage,overvoltage of the alternating current bus voltage is avoided.The back-end inverter circuit uses EG8010 as the main control chip,adopts a full bridge topology structure and SPWM control technology.It has overvoltage&overcurrent protection circuits and overheating protection circuits to avoid circuit overvoltage and overheating.The experiment shows that the vehicle mounted inverter power supply can output stable alternating current voltage(219.5-220.1 V)within the range of input direct current voltage of(12±1.5)V,and the overall testing efficiency remains around 97.5%,with good parameter performance.

关 键 词：车载逆变电源 推挽 直流-直流 直流-交流 正弦脉宽调制 

分 类 号：TM464[电气工程—电器]