基于STM的锂电池充放电系统的设计VIP专享

基于 STM32 锂电池充放电系统设计——硬件部分专业：电子科学和技术 学号： 姓名：许金科指导老师：曾益彬摘 要锂电池使用越来越广泛，为了能够充足发挥锂电池性能，提升电池使用效率并延长电池寿命，需要设计一个锂电池充放电管理系统，该系统是以 STM32 为控制关键，经过使用 RT9545 来实现对电池保护。经过使用电源管理芯片 BQ24230 实现对锂电池充放电路径管理，经过使用电池电量检测芯片 BQ27410 来实现对电池剩下电池容量 SOC、充电状态、电池电压、电池充放电电流、电池温度等参数检测。经过使用 DC-DC 升压芯片LMR62421 能够输出稳定电压，实现对整个系统供电，最终经过 STM32 实现对电池状态信息读取和显示。关键词：电池管理系统，SOC，充电方法Lithium Battery Charging and Discharging SystemDesign Based on STM32———HardwareAbstractMore widespread use of lithium batteries, in order to give full play to the performance of lithium batteries, to improve battery efficiency and extend battery life, it need to design a lithium battery charge and discharge management system, which is based STM32 control core, through the use of RT9545 to realization of battery protection. By using the power management chip BQ24230 lithium battery charge and discharge path to achieve the management, through the use of battery detection chip BQ27410 to achieve the battery remaining battery capacity SOC, detection current, temperature and other parameters of the battery state of charge, battery voltage, battery charge and discharge. By using the DC-DC boost chip output stable voltage LMR62421 able to achieve power to the entire system, and finally through STM32 achieve read and display the battery status information.Key words：Battery Management System，SOC，Charge Mode1 引言多年来，伴随移动通信网络普及应用和便携式设备快速进展，使得可循环充放电电池得到了广泛应用[1]，锂离子电池凭借着使用寿命长等优势在众多电池材料中脱颖而出[2]，但因为锂电池本身有着较为复杂化学性质，过放...