论文部分内容阅读
基于相变存储器,对无源超高频电子标签模拟前端四个关键电路进行低功耗设计。整流电路采用9级电荷泵,结合储能电容和过压保护电路,得到了很好的整流效果。上电复位电路在箝位电路的基础上利用简单的缓冲器及异或逻辑,得到性能良好的矩形脉冲复位信号PORB,通过PMOS栅交叉耦合,极大地降低了电路静态电流(<1nA)。在基准电源电路中,设计了双极晶体管和MOS晶体管,兼具功耗低和准确性高的优势。稳压电路采用串联稳压结构,电源抑制比达到28.2dB。仿真结果显示,功耗达到nA级,输出直流电压为3V。
Based on phase change memory, four key circuits of passive UHF RFID tags are designed for low power consumption. Rectifier circuit using 9 charge pump, combined with the storage capacitor and over-voltage protection circuit, get a good rectification effect. On the basis of the clamp circuit, the power-on reset circuit uses a simple buffer and XOR logic to obtain a well-behaved rectangular pulse reset signal PORB, which greatly reduces the quiescent current (<1nA) of the circuit through the PMOS gate cross-coupling. In the reference power circuit, the design of the bipolar transistor and MOS transistor, both low power consumption and high accuracy. Regulator circuit with series regulator structure, the power supply rejection ratio reached 28.2dB. The simulation results show that the power consumption reaches nA level and the output DC voltage is 3V.