基于DS2438的大功率蓄电池状态检测.pdf

N E W P R OD UC T T E CH DS2438 , , ( , 110004) : 介绍一种大功率蓄电池状态检测方法, 通过电能质量管理芯片DS2438 测量蓄电池的充放电电 值, 并对其时间 进行积分来估算蓄电池的充放电电量以微控制器ST 89 51为核心通过控制电能质量管理芯片及外围电路, 实现对 蓄电池的电压电 以及电量的精确测量 : 蓄电池; DS2438; ST 89 51; 电能管理 : TB51 : A Detection of Highpower Battery Based on DS2438 Yan Jiapeng, Wang Dazhi, Jin Youchao ( Northeastern University, Shenyang 110004, hina) Abstract : T his paper provides a test method for highpower storage battery. The values of the battery charge and discharge currents are measured by power quality management chip DS2438, and the battery charge and discharge capacities are estimated by time integration. Using the microcontroller ST 89 51 as the core, the precise measurement of the battery voltage, current and power are realized by con trolling the power quality management chip and its peripheral circuits. Key words: storage battery; DS2438;ST 89 51; power management , 1 , ST 89 51 () , ( , )( ) 1 , DS2438, , , RS232 , , VB , , , AT24 02 , , , , 1. 1 1 DS2438Maxim , , LED , P , DS2438 2 , GND