高效同步整流开关型超级电容充电管理芯片  

High efficiency synchronous rectification switch type super-capacitor charging management chip

作　　者：陈晓飞[1] 丁泽宇 肖培磊[2] 邓文涛 CHEN Xiaofei;DING Zeyu;XIAO Peilei;DENG Wentao(School of Integrated Circuits,Huazhong University of Science and Technology,Wuhan 430074,China;The 58th Research Institute of China Electronics Technology Group,Wuxi 214000,Jiangsu China)

机构地区：[1]华中科技大学集成电路学院,湖北武汉430074 [2]中国电子科技集团第五十八研究所,江苏无锡214000

出　　处：《华中科技大学学报(自然科学版)》2025年第3期142-147,共6页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(U22A2083);华中科技大学自主创新基金资助项目(HUST:2023JCYJ040)。

摘　　要：设计了一款为超级电容充电的高效率大功率充电管理芯片.采用降压型开关拓扑,基于平均电流模控制方式,设计了新颖的恒流和恒压充电控制环路,实现了对超级电容器高效、高精度、大功率充电管理.芯片采用0.18μm BCD工艺,仿真及芯片测试结果表明:芯片工作在6~36 V的宽输入电压范围下,输出电压范围达到1.2~34.0 V,开关频率为500 kHz,最大充电电流为20 A,芯片的峰值效率为95.28%.An efficient and high-power charging management integrated circuit for super-capacitors was designed.A novel constant current and constant voltage charging control loop was designed using a step-down switch topology and an average current mode control method,achieving efficient,high-precision,and high-power charging management for supercapacitors.Based on 0.18μm BCD process,the simulation and experimental results show that the chip can operate in a wide input voltage range of 6~36 V,with an output voltage range of 1.2~34.0 V,a switching frequency of 500 kHz,a maximum charging current of 20 A,and a peak efficiency of 95.28%.

关 键 词：恒流恒压充电 超级电容器 平均电流模式 小信号建模 高效同步整流 

分 类 号：TN433[电子电信—微电子学与固体电子学]