应用于RFID E^2PROM的低功耗14V高压产生电路设计  

Design of the Low Power 14 V Generation Circuit Applying for E^2PROM of RFID

作　　者：董静飞[1] 樊勃[1] 戴宇杰[1] 张小兴[1] 吕英杰[1] 

机构地区：[1]南开大学微电子研究所,天津300071

出　　处：《南开大学学报（自然科学版）》2008年第4期26-30,共5页Acta Scientiarum Naturalium Universitatis Nankaiensis

基　　金：天津市科技发展计划项目(05YFGZGx02300)

摘　　要：设计了应用于RFID电子标签E2PROM存储器中的低功耗的14V产生电路.大多数电子标签中升压电路均采用MOS管交叉耦合结构,通过分析Dickson结构和MOS管交叉耦合结构电荷泵的优缺点并根据RFID的应用,采用Dickson结构作为升压电路.通过对传统Dickson电荷泵电路进行改进,采用高速的肖特基二极管,利用间歇泵压技术,同时通过直接从电子标签的整流电路端供给电源,并采用电平移动电路增加时钟信号的幅度,同时大幅度减少了芯片面积.利用Chartered 0.35 μmCMOS工艺流片,电荷泵电路最大平均电流小于20μA,实现了低功耗的目标,且已经成功应用于13.56MHz电子标签中.A low power charge pump circuit applying for the E^2PROM of RFID tag is studied. According to comparing the construct of Dickson with MOS cross-coupling, and based on the application, the construct of Dickson is adopted. To lower the power consumption, the technology adopted as follow： modifying the conventional Dickson charge pump; boosting the voltage intermittently and useing the high-speed Schottky diode; getting the power from the rectifier of the RFID tag. The circuits have passed the simulation and according to the result of the simulation, the average current is smaller than 20uA and fulfills the goal of low power and the charge pump has been applied in the 13.56 MHz RFID tag.

关 键 词：RFID 电荷泵 间歇泵压 低功耗 肖特基二极管 

分 类 号：TN27[电子电信—物理电子学]