一种超低输入电压的热电能量采集芯片设计  

Design of the Thermoelectric Energy Acquisition Chip with Ultra‑low Input Voltage

作　　者：杨淼 周俊豪 刘新宁 YANG Miao;ZHOU Junhao;LIU Xinning(Wuxi Hunchip Technology Co.,Ltd.,Wuxi,Jiangsu,214111,CHN;School of Integrated Circuits,Southeast University,Wuxi,Jiangsu,214026,CHN)

机构地区：[1]无锡鸿恩泰科技有限公司,江苏,无锡214111 [2]东南大学集成电路学院,江苏,无锡214026

出　　处：《固体电子学研究与进展》2025年第2期73-78,共6页Research & Progress of SSE

基　　金：无锡市“太湖之光”科技攻关项目(G20223025)。

摘　　要：基于0.18μm 1P4M BCD工艺设计了一款超低输入电压的电源管理芯片,可实现自启动和升压,能对外界的热电能量进行采集管理。提出了一种将反馈控制电路和充电控制电路相结合的架构,利用迟滞比较器阵列和交叉耦合复用电路实现主从电源切换和输出控制,使其在无外界能量输入时,依然可以正常工作。测试结果表明,在22 mV低输入电压下,芯片可实现自启动,芯片静态工作电流仅为3.5μA,输出电压值最大为4.2 V,最大输出电流950μA。Based on the 0.18μm 1P4M BCD process,the design of a power chip with ultra-low input voltage,self-starting and step-up functions is realized,and the external thermoelectric energy is collected and managed.The feedback control circuit and the charging control circuit are combined,and the hysteresis comparator array and cross-coupling multiplexing circuit are adopted to realize the master-slave power switching and output control functions so that it can still work normally when there is no external energy input.The experiment results show that under the low input voltage of 22 mV,the chip can be self-starting.The quiescent current of the chip is only 3.5μA,with the maximum output voltage of 4.2 V and a maximum output current of 950μA.

关 键 词：热电 低输入电压 能量采集 电源管理 

分 类 号：TN432[电子电信—微电子学与固体电子学]