光通信研究Issue(2)：20-25,6.DOI:10.13756/j.gtxyj.2025.240022
面向光信息与能量同步传输的接收电路研究
Study on a Receiver Circuit for Simultaneous Lightwave Information and Power Transfer
摘要
Abstract
[Objective]The two functions of Energy Harvesting(EH)and Information Transmission(IT)are mutually restricted in the Simultaneous Lightwave Information and Power Transfer(SLIPT)system.In order to make the SLIPT system work more efficiently,it is necessary to regulate these two functions.[Methods]The article firstly tests the commonly used receiver circuit in SLIPT system to optimize the receiver.The receiver circuit designed in this article consists of three circuits:decoupling,energy harvesting and signal processing.The decoupling circuit consists of three branches,including Energy Harvesting Branch(EHB),Current Regulation Branch(CRB)and Information Transmission Branch(ITB),which is used to separate and regulate the output current of the optoelectronic converter.The EH circuit consists of three parts:boost circuit,energy management circuit and voltage stabilizing circuit,which is used for EH management and output.The signal processing circuit consists of a two-stage low-pass filtered non-inverting amplifier circuit and a threshold comparison circuit,which is used for signal filtering,amplifying and shaping.Finally,the receiving circuit is applied in a SLIPT system that uses Light-Emitting Diodes(LEDs)and Photovolta-ic cells(PV)as optical/electrical conversion devices,and a microcontroller as the processor.The constraints and control methods between the two functions of EH and IT are summarized.[Results]Experiment results show that the SLIPT system based on the as-designed circuit can be controlled to work in the EH mode,IT mode,or information-energy simultaneous transmission mode.By adjusting the parameters of the receiving circuit,the PV output current distribution can be regulated,thereby controlling the power input to the EHB and the Signal-to-Interference Ratio(SIR)of the ITB.This enables efficient energy harvesting and sta-ble information transmission.The corresponding energy storage power and communication rate can be balanced and regulated by the decoupling circuit.[Conclusion]The receiving circuit can operate without an external power supply and features maximum power point tracking,low power consumption,and adjustable operating modes.关键词
光信息与能量同步传输/光伏电池/能量采集/信息传输/电路设计Key words
SLIPT/PV/EH/IT/circuit design分类
物理学引用本文复制引用
涂俊轩,樊庭冰,倪慧琳,庄济舟,曹国洋,吴绍龙,李孝峰..面向光信息与能量同步传输的接收电路研究[J].光通信研究,2025,(2):20-25,6.基金项目
国家自然科学基金资助项目(62075146,62120106001) （62075146,62120106001）
江苏省自然科学基金资助项目(BK20231311) （BK20231311）
