中圖分類號(hào):TN911 文獻(xiàn)標(biāo)志碼:A DOI: 10.16157/j.issn.0258-7998.223301 中文引用格式: 田鴻昌,,朱權(quán)喆,鄭國(guó)棟. 基于頻移鍵控的無(wú)線電能與數(shù)據(jù)共同傳輸方法[J]. 電子技術(shù)應(yīng)用,2023,,49(5):115-118. 英文引用格式: Tian Hongchang,,Zhu Quanzhe,Zheng Quodong. Wireless power and data transfer method based on frequency shift keying[J]. Application of Electronic Technique,,2023,,49(5):115-118.
Wireless power and data transfer method based on frequency shift keying
Tian Hongchang,Zhu Quanzhe,,Zheng Quodong
(Shaanxi Semiconductor Pilot Technology Center Co.,, Ltd., Xi’an 710077,, China)
Abstract: Wireless power and data transmission technology can transmit information while energy is transmitted wirelessly, so it has been widely studied in recent years. In this paper, binary frequency shift keying (2FSK) is used to modulate the data to the energy transmission channel. The modulation of binary information can be achieved by changing the working frequency of the inverter. The frequency tracking characteristics of the phase-locked loop are used in data demodulation, that is, when the phase is locked, it can output effective signals, and when it cannot be locked, it can output signals with opposite levels. The effectiveness of the wireless power and data transmission technology is verified by the prototype. The wireless power transmission method proposed in this paper can achieve the communication rate with 10 kb/s while the power transmission is normal, and the communication performance will not be affected when the power transmission is changed from tens of watts to hundreds of watts.
Key words : wireless power,;data transfer;frequency shift keying
0 引言
無(wú)線電能傳輸(Wireless Power Transfer, WPT)技術(shù)由于在電源和負(fù)載之間不需要物理連接而被廣泛應(yīng)用,。在消費(fèi)電子、電動(dòng)汽車,、水下裝備以及生物醫(yī)學(xué)領(lǐng)域,,無(wú)線電能傳輸逐漸嶄露頭角。
本文提出一種基于二進(jìn)制移頻鍵控(Binary Frequency Shift Keying, 2FSK)的能量與數(shù)據(jù)共同傳輸方法,,只需要在諧振頻點(diǎn)附近切換逆變器的頻率即可實(shí)現(xiàn)能量與信息的共同傳輸,,配合鎖相環(huán)的頻率跟蹤特性即可在電能傳輸?shù)耐瑫r(shí)實(shí)現(xiàn)穩(wěn)定的數(shù)據(jù)傳輸。相比于傳統(tǒng)的方法,,本文提出的方法在通信過(guò)程中不因能量傳輸功率的增大而性能受到影響,。