摘要
针对广泛使用电池供电的系统,由于电源电压监控的要求,系统复位电路的可靠性对整个系统的稳定性起着非常重要的作用,本文研究并设计一种低功耗,高性能的复位芯片,可以在系统上电,掉电的情况下向微处理器提供复位信号。当电源电压低于预设的门槛电压时,输出复位信号并在电源电压恢复到门槛电压以上继续持续复位一段时间,实现整个系统的平稳恢复,复位信号低电平有效。该芯片采用CMSC035标准CMOS工艺实现,采用Cadence Spectre仿真,工作电流仅为10μA。该芯片已成功应用于工业类控制系统中。
Considering the Widespread use of battery-powered systems,due to the requirements of the power supply voltage monitoring.The reliability of reset circuit plays a very important role in the stability of the entire system.Research and Design a low-power,high-performance rest chip,during the case of power on and power supply drops condition to provide a reset signal to the microprocessor.When the power supply voltage drops below a preset threshold voltage,Outputs a reset signal until the power supply voltage back to the threshold voltage then continue to persist for a period of time for the smooth recovery of the entire system.Active-Low reset signal.The chip using CMOS035 standard CMOS process,Use Cadence Spectre for Simulation,the operating current only 10uA.The chip has been successfully used in industrial control systems.
出处
《电子设计工程》
2013年第17期190-193,共4页
Electronic Design Engineering
关键词
复位芯片
带隙基准
振荡器
逻辑控制
reset chip
bandgap reference
oscillator
logic control
