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首页> 外文会议>IEEE Regional Symposium on Micro and Nano Electronics >Designing a boost converter of micro energy harvester using thermal and vibration input for biomedical devices
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Designing a boost converter of micro energy harvester using thermal and vibration input for biomedical devices

机译：使用热和振动输入为生物医学设备设计微能量采集器的升压转换器

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摘要

This work presents a designed of boost converter Hybrid Micro Energy Harvester (HMEH) using thermal and vibration of human body for biomedical application. Thermal converts temperature differences directly into electrical energy. While vibration is based on human movement like walking and shaking body that is able to generate an AC voltage. Having two sources overcome the limitation caused by a single source harvester and improves system functionality. The inputs are set to 0.2V, 0.3V and 0.5V to represent thermal, vibration and combination of thermal and vibration (hybrid) respectively. A rectifier is designed to convert vibration input from AC to DC voltages. The proposed boost converter is used to step-up the small input voltage from thermal and vibration at 2 kHz. The inductance is varied from 0.4μH to 1.2μH, 0.9μH to 2.9μH and 0.3μH to 0.9μH for vibration, thermal and hybrid input respectively. However, the optimize value for the designed is 0.9μH for all sources to achieve the regulated output of 2.0 to 4.0V. Both rectifier and boost converter circuit consist of MOSFET as the heart of the operation. In this paper, the circuits are designed, modeled and simulated using PSPICE software.
机译：这项工作提出了一种升压转换器混合微能量采集器（HMEH）的设计，该采集器利用人体的热和振动进行生物医学应用。热能将温差直接转换为电能。振动是基于人体运动（例如行走和晃动的身体）产生的，能够产生交流电压。具有两个源可以克服由单个源收集器引起的限制，并可以改善系统功能。输入设置为0.2V，0.3V和0.5V，分别代表热，振动以及热和振动（混合）的组合。整流器设计用于将振动输入从交流电压转换为直流电压。所提出的升压转换器用于以2 kHz的频率从热和振动中提升较小的输入电压。对于振动输入，热输入和混合输入，电感分别在0.4μH至1.2μH，0.9μH至2.9μH和0.3μH至0.9μH之间变化。但是，所有源的设计最佳值为0.9μH，以实现2.0至4.0V的稳定输出。整流和升压转换器电路均以MOSFET为核心。在本文中，使用PSPICE软件对电路进行了设计，建模和仿真。

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