高精度过压检测电路设计  

Design of high accuracy overvoltage detection circuit

作　　者：邹雪城[1] 杨秋平[1] 刘冬生[1] 李泳生[1] 

机构地区：[1]华中科技大学电子科学与技术系,湖北武汉430074

出　　处：《华中科技大学学报（自然科学版）》2007年第1期67-69,共3页Journal of Huazhong University of Science and Technology(Natural Science Edition)

摘　　要：提出了一种新型的高性能过压检测电路的设计．对带隙基准模块的设计原理和一种无需比较器模块和带隙基准启动电路的过电压检测电路进行了详细分析，电路结构的优化设计有效地降低了电路的实现成本．仿真结果表明此电路检测精度高，当温度在-25-85℃范围内变化时，门限电压变化仅为11．7mV．A novel high performance overvohage detection circuit is presented. This paper has explained the detailed design principles of bandgap reference circuit, overvoltage detection circuit of no comparator and start up circuit for bandgap. Well-suited circuits are used for low cost. The simulation results show that the detection circuit can operate with high accuracy. Over voltage detection accuracy is 11.7 mV under the condition that temperature range was from -25℃ to 85 ℃.

关 键 词：过电压检测 带隙基准 高精度检测 

分 类 号：TN4[电子电信—微电子学与固体电子学]