⚡ 本页包含 AI 生成的分析内容,仅供参考
该论文提出了一种660pW的多级温度补偿定时器,用于超低功耗无线传感器节点的同步。通过硅后测试确定最优配置并存储,处理器唤醒时利用存储的周期和待机周期数计算时间,同时采用同步转换防止噪声注入,并将未选晶体管驱动至低电压以减小泄漏。
Fig. 2.7.5, left). The optimal configurations are determined and stored during post-silicon testing. Each time when the sensor node processor wakes up, it computes time by calculating the elapsed time using the stored period for proceeding configuration and the number of cycles during the last standby state. The transition between configurations occurs synchronously when the first stage starts a new charging state; this allows an exact period calculation and prevents noise injection during capacitor charging. Un-selected ZVTMOS transistors are driven to 400mV to minimize leakage by placing them in accumulation mode. University of Michigan, Ann Arbor, MI Recent work in ultra-low-power sensor platforms has enabled a number of new applications in medical, infrastructure, and environmental monitoring. Due to their limited energy storage volume, these sensors operate with long idle times and ultra-low standby power ranging from 10s of nW down to 100s of pW [12]. Since radio transmission is
Yoonmyung Lee, Bharan Giridhar, Zhiyoong Foo, Dennis Sylvester, David Blaauw