Optimization of Passive Voltage Multipliers for Fast Start-up and Multi-voltage Power Supplies in Electromagnetic Energy Harvesting Systems
Optimization of Passive Voltage Multipliers for Fast Start-up and Multi-voltage Power Supplies in Electromagnetic Energy Harvesting Systems
复制标题
用于电磁能量收集系统中快速启动和多电压电源的无源电压倍增器的优化
DOI：
10.1088/1742-6596/557/1/012028
复制
发表时间：
2014
期刊：
影响因子：
--
通讯作者：
Yang G
中科院分区：
文献类型：
--
作者：
Yang G
本文演示了如何使用无源电压倍增器来快速启动亚毫瓦电磁能量收集系统。这项工作描述了电路优化，以尽可能缩短从完全耗尽的能量存储到主动控制开关模式转换器的首次加电的过渡。启动时间对组件参数和拓扑的依赖性是通过仿真和实验得出的。由此产生的优化乘法器设计将启动时间从几分钟缩短至 1 秒。另一项改进是使用电压倍增器固有的级联结构为不同电压的子系统供电。与优化的单轨系统相比，这种多轨启动可将有源转换器的电路损耗降低 72%。实验结果提供了对完整采集系统中倍增器瞬态行为（包括电路相互作用）的深入了解，并为优化电压倍增器以实现快速启动提供了重要信息。
This paper demonstrates the use of passive voltage multipliers for rapid start-up of sub-milliwatt electromagnetic energy harvesting systems. The work describes circuit optimization to make as short as possible the transition from completely depleted energy storage to the first powering-up of an actively controlled switched-mode converter. The dependency of the start-up time on component parameters and topologies is derived by simulation and experimentation. The resulting optimized multiplier design reduces the start-up time from several minutes to 1 second. An additional improvement uses the inherent cascade structure of the voltage multiplier to power sub-systems at different voltages. This multi-rail start-up is shown to reduce the circuit losses of the active converter by 72% with respect to the optimized single-rail system. The experimental results provide insight into the multiplier's transient behaviour, including circuit interactions, in a complete harvesting system, and offer important information to optimize voltage multipliers for rapid start-up.
DOI：
10.1109/jetcas.2014.2337172
发表时间：
2014
影响因子：
4.6
作者：
Yang G
通讯作者：
Yang G
超低功耗电磁能量收集器的最大功率传输跟踪
影响因子：
6.7
作者：
Szarka G
通讯作者：
Szarka G