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中文摘要：
针对传统能量采集器输出功率过低、单一能量采集单元不足以直接驱动传感器节点等负载的问题,设计了一种多路并行可调谐能量采集电路。该电路包括能量采集源模块、全桥整流模块、电容存储模块、电压调整模块和负载模块五部分。Multisim软件仿真结果表明该电路的最终输出电压相比标准能量采集（standard energy harvesting,SEH）电路提高了1.11倍;实验测试结果显示,采用该电路后输出电压稳定在5 V,最大输出功率为15 m W,比SEH电路提高2.12倍,能量传输与利用效率显著提高。
英文摘要：
To overcome the shortcoming of the lower output power of traditional energy harvesting devices and a single energy harvesting cell not enough to directly drive loads like sensor nodes, a tunable energy harvesting circuit with parallel channels was proposed. The new circuit contained energy harvesting source module, a full-bridge rectifier module, capacitance storage module, voltage regulator module and load module. Simulation results by using Multisim software show that the output voltage of the circuit is 1.11 times greater than that of the SEH circuit. The experimental results prove that the output voltage of the circuit is 5 V and the maximum output power is 15 roW, increasing by 2.12 times than that of the SEH circuit. The efficiency of energy transmission and utilization is improved.
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