摘要
设计了以ICL8038，LM358运放芯片为主控芯片，频率为0．001～300Hz的交流信号用于蓄电池内阻的检测、介绍了蓄电池内阻的结构和测量工作原理，重点分析了由集成运放及功率器件获得大恒流输出的交流恒流源电路、测试结果表明该交流恒流源具有较好的精度和稳定度。
The paper designs ac signal with the frequency of 0.001 to 300 Hz for measuring battery resistance by taking ICL8038 and LM358 as the main control chip, introduces the structure and working principle of the battery resistance, and focuses on the analysis of the current source circuit with high constant alternating current output obtained by the integrated operational amplifier and power devices. The test results show that the AC constant current source is of high accuracy and stability.
出处
《陕西电力》
2016年第1期83-86,共4页
Shanxi Electric Power
