One-side automated impedance matching scheme for multi-transmitter wireless power transmission

2018 ◽  
Author(s):  
Jingsheng Liu ◽  
Xiaodong Wang
Keyword(s):  
Power Transmission ◽  
Impedance Matching ◽  
Wireless Power ◽  
Wireless Power Transmission

Two-side Impedance Matching for Maximum Wireless Power Transmission

2015 ◽  
Vol 62 (4) ◽  
pp. 532-539 ◽  
Author(s):  
Surajit Das Barman ◽  
Ahmed Wasif Reza ◽  
Narendra Kumar ◽  
Tanbir Ibne Anowar
Keyword(s):  
Power Transmission ◽  
Impedance Matching ◽  
Wireless Power ◽  
Wireless Power Transmission

scholarly journals Wireless power transfer system based on frequency and impedance matching hybrid adjustment against system detuning

2021 ◽  
Vol 2108 (1) ◽  
pp. 012035
Author(s):  
Zhengnan Yuan ◽  
Pengcheng Fu ◽  
Guangshuai Lu ◽  
Pengfei Cao
Keyword(s):  
Magnetic Resonance ◽  
Power Transmission ◽  
Impedance Matching ◽  
Transmission Efficiency ◽  
Resonant Circuit ◽  
Wireless Power ◽  
Wireless Power Transmission ◽  
Transmission Distance ◽  
Magnetic Resonance Coupling ◽  
Resonance Coupling

Abstract System detuning caused by a variation in the distance between the transmitting and receiving terminals can greatly reduce the transmission power and efficiency of a magnetic resonance-coupled wireless power transmission (WPT) system, which limits the WPT application scope. This paper proposes a magnetic resonance coupling wireless power transmission system, which is based on jointly and continuously adjustable frequency compensation (CAFC) and two-transistor-controlled variable capacitor circuits (TCVCs). Therefore, this system can reach the resonant state by using CAFC and two-TCVCs when the transmission distance is changed. The proposed system can adaptively adjust combinations of the operating frequency and equivalent compensation capacitor’s capacitance to achieve impedance matching avoiding the phase difference caused by the imaginary part of the impedance, thus maintaining stable transmission efficiency under the condition of transmission distance variation. Compared to the traditional magnetic coupled resonant circuit based on impedance matching or variable resonant frequency, the proposed system achieves higher efficiency and stability and dynamic distance adaptation.

Data Transmission Using Original Coils in Resonant Wireless Power Transmission

2011 ◽  
Vol E94-B (11) ◽  
pp. 3172-3174 ◽  
Author(s):  
Takashi MARUYAMA ◽  
Tatsuya SHIMIZU ◽  
Mamoru AKIMOTO ◽  
Kazuki MARUTA
Keyword(s):  
Data Transmission ◽  
Power Transmission ◽  
Wireless Power ◽  
Wireless Power Transmission
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