摘要
无线传感器网络和物联网技术的发展使得分布式设备供电成为目前电子设计领域的一大研究热点。基于压电效应的能量收集技术已逐渐成为该领域的一种重要解决方案。在压电馈能电路中,基于偏置翻转的拓扑结构能够显著提升能量收集能力,代表了该领域最前沿的发展方向。本文基于偏置翻转的一般理论,提出了一种面向应用的、可拓展的同步开关电路,并通过电容复用、级联开关等方案有效减小电路损耗。此外,本文也对压电馈能系统的能量循环状态做一分析,明确这一换能过程中的能量流动情况。
Owing to the technical innovations of wireless sensor networks（WSNs）and Internet of Things（IOT）,power issue of the distributed device has become a popular topic in electronic design.Piezoelectric based energy harvesting technology contributes important solutions to this area. Given the generalized bias flip theory,this paper proposed an application-oriented,extensible synchronous switching circuit. By introducing the multiplex auxiliary capacitor and cascade switching,the dissipated energy can be limited. Energy cycle,i.e. the energy-flow state of the whole electromechanical system,is also focused.
作者
赵康
ZHAO Kang(Shanghai Institute ofMicrosystem ＆ Information Technology,Chinese Academy of Sciences,Shanghai 200050,China;School of Information Science ＆ Technology,ShanghaiTech University,Shanghai 201210,China;University of Chinese Academy of Sciences,Beijing 100049,China)
出处
《电子设计工程》
2018年第18期160-164,169,共6页
Electronic Design Engineering
基金
国家自然科学项目基金(61401277)
关键词
压电效应
馈能
偏置翻转
能量循环
piezoelectric effect
energy harvesting
bias flip
energy cycle
