【作者】 杨明欣； 佘勇； 孟芳； 高国富；

【Author】 Yang Mingxin She Yong Meng Fan Gao Guofu (ChengDu University of Information Technology ChengDu 610066)

【机构】 成都信息工程学院；

【摘要】 蓄电池作为备用电源得到广泛的应用,为了检测电池组可备用时间及电池容量,需对电池组进行充满电以后的核对性放电测试。本设计以陶瓷加热器(PTC)作为蓄电池放电负载,对蓄电池进行恒流放电测试,通过计算得到待测蓄电池的实际电容量。本设计以单片机作为核心,采用PID算法,实现对负载(陶瓷加热器PTC)阻抗的精确控制,以保证放电电流的恒定。此外,系统还具备欠压、过压报警、20条放电信息的存储查询以及实时时钟等功能,自动化程度高,有广泛的应用价值。更多还原

【Abstract】 As a important standby power, the accumulator has been widely used. To test its standby time and battery capacity,each accumulator must be checked by discharge. The tester in this article uses the ceramic heater system (PTC) as discharge load, by constant current discharge,it can get actual capacity by accumulator. This design uses microcontroller as its core, using PI controller, controlling the impedance of load (ceramic heater PTC) accurately, in order to ensure the discharge work in constant current. In addition, the system also has voltage alarm, the capabilities of storing and querying 20 discharge messages, real-time clock function,and as a mature product.更多还原