LTC3108在MSMA振动能量采集器中的应用

On application of LTC3108 in MSMA vibration energy harvester

为将磁控形状记忆合金振动能量采集器收集到的微弱交流电,转化为可以向无线传感器网络系统供电的稳定直流电,采用LTC3108芯片,设计磁控形状记忆合金振动能量采集器电源管理电路.研究结果表明:该系统在输入幅值和频率波动的情况下,能够输出稳定的直流电压,可以对无线传感器网络系统提供持续稳定的电压,满足对振动能量的存储能力及存储效率的要求.

In order to transfer the low output AC from magnetically controlled shape memory alloys （MSMA） vibrational energy harvesting to steady DC voltage, and supply the power for the wireless sensor networks and micro-electromechanical systems, this paper designed MSMA power management circuit by using LTC3108. The simulation and experimental results show that the system is able to keep stable in the case of input amplitude and frequency fluctuations, supplying steady DC voltage for a wireless sensor network system and meeting the storage capacity and storage efficiency of vibrational energy requirements.