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引用次数: 1
摘要
本文提出了一种自动无电池温度测量系统。人的动作和电能之间的转换是由用户有意激活的手持电磁转换器提供的。电磁变换器产生的交流电压具有时变的幅度和频率，并通过倍压有源整流电路进行整流。通过创新的顺序充电存储电容器(SCSC)技术，将收集的能量存储到多个电容器中。当对EM转换器施加约29.4 N / 2 cm的力时，电源管理电路能够提取27.5 mJ的能量，并为非接触式温度测量系统供电约17 s。
Portable battery-less noncontact temperature measurement system powered on-demand by human action
This paper presents an autonomous battery-less temperature measurement system powered on-demand by human action. The conversion between the human action and electrical energy is provided by an hand-held electromagnetic (EM) converter intentionally activated by the user. The AC voltage generated by the EM converter has time-varying amplitude and frequency and is rectified by a voltage doubler active rectifier circuit. The energy harvested is stored into multiple capacitors by the innovative Sequential Charging of Storage Capacitors (SCSC) technique. With a force of about 29.4 N over 2 cm applied to the EM converter, the power management circuit is able to extract an energy of 27.5 mJ and power the noncontact temperature measurement system for about 17 s.
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