On hyperbolic laws of capacitor discharge through self‐timed digital loads
On hyperbolic laws of capacitor discharge through self‐timed digital loads
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自定时数字负载电容器放电的双曲线定律
DOI：
10.1002/cta.2010
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发表时间：
2015
影响因子：
2.3
通讯作者：
R. Ramezani
中科院分区：
文献类型：
--
作者：
A. Yakovlev;A. Kushnerov;A. Mokhov;R. Ramezani
推导了一种新的模型来预测由电容器供电的自定时自治数字系统的动态行为。该模型展示了电容器放电过程的双曲线形状。它允许对由数字电路的串联(堆叠)和并联配置组成的复杂数字负载的放电过程进行符号分析。例如，对于堆叠配置，基于在数字部分中使用的半导体器件的速度饱和指数(α)的知识，已经推导出双曲线放电率之间的重要的非平凡关系。对于阿尔法 = 1.5的实际值(现代互补金属氧化物半导体器件)，两个相同电路的堆叠的放电过程比任何独立电路的放电过程慢近三倍。这显示了通过堆叠自定时电路来延长能源寿命的潜在方式。虽然分析是基于由环形振荡器组成的配置的，但分析方法可以扩展到其他类型的自定时系统和其他半导体技术，其中数字负载的瞬时开关活动由电容功率传输机制提供的瞬时电压电平来确定。用真实硬件进行了仿真和实验，验证了分析结果的正确性。©2014作者。约翰·威利父子公司出版的《国际电路理论与应用杂志》。
A new model to predict the dynamic behavior of a self‐timed autonomous digital system powered by a capacitor is derived. The model demonstrates the hyperbolic shape of the discharging process on the capacitor. It allows a symbolic analysis of the discharging process for complex digital loads comprised of series (stack) and parallel configurations of digital circuits. For example, for a stack configuration, important non‐trivial relationships between the hyperbolic discharging rates have been derived based on the knowledge of the velocity saturation index (alpha) of the semiconductor devices used in the digital part. For a realistic (modern complementary metal oxide semiconductor (CMOS) devices) value of alpha = 1.5, the discharging process for a stack of two identical circuits proceeds nearly three times slower than that of any of the stand‐alone circuits. This shows a potential way of extending the lifetime of the energy sources by means of stacking self‐timed circuits. Although the analysis is based on configurations consisting of ring oscillators in CMOS technology, the analysis method can be extended to other types of self‐timed systems and other semiconductor technologies in which the instantaneous switching activity of the digital load is determined by the instantaneous voltage levels provided by the capacitive power transfer mechanism. The analytical derivations have been validated by simulations and experiments carried out with real hardware. © 2014 The Authors. International Journal of Circuit Theory and Applications published by John Wiley & Sons, Ltd.
用于亚毫瓦电磁能量收集器的低功率单级升压整流器的比较
DOI：
10.1117/12.2016536
发表时间：
2013
期刊：
--
影响因子：
--
作者：
Szarka G
通讯作者：
Szarka G