基于双电源系统的电荷泵电路设计  

Design of a Charge Pump Applied in Double Power Systems

作　　者：李珂[1] 隽扬 顾飞[1] 

机构地区：[1]中国电子科技集团公司第五十八研究所,江苏无锡214000

出　　处：《微电子学与计算机》2014年第7期84-87,92,共5页Microelectronics & Computer

摘　　要：设计了一款应用于双电源系统中的电荷泵电路结构,通过内部电平转化与控制电路,在双电源系统中实现不同逻辑电平控制产生高压的目的,为EEPROM存储单元提供擦写所需高压.电路采用ZMOS管作为传输管,提高传输效率;在电荷泵不工作时,所有子电路关闭,实现零功耗设计.仿真结果显示,电路输出电压精度高、上电速度快、驱动能力强.电路采用SMIC 0.18μm CMOS工艺流片,已实际应用于数字电位计芯片设计中,输出高压稳定,达到设计要求,性能良好.A new charge pump applied in double power systems was presented .Though different voltages translated and controlled ,high voltage was produced in double power systems ,which is used for writing EEPROM cell .It used ZMOS transistors as switch transistors to improve efficiency .When charge pump didn′t work ,every sub-circuit was cut off to realize low power .Simulation results show :the new charge pumps have high performance , shorter start up time and a strong drive-power .It was actually used in Dual Digitally Controlled Potentiometer chip normally .This circuit had been realized in the SMIC 0 .18 μm CMOS technology and reached the request .

关 键 词：电荷泵 双电源 ZMOS传输管 低功耗 

分 类 号：TN86[电子电信—信息与通信工程]