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Metal obstacles will be heated due to the eddying effect, if its location is between two coils belonging with the wireless power transfer system applying in the electric vehicle, and safety problems may occur easily. If metal obstacles is large, there will be efficiency decline, frequency detuning and other issues. So it is very important to detect the metal obstacles. In this paper, the theory about...
In order to address the short distance transmission of inductive coupling wireless power transmission and the poor stability of power supply of near-field resonant wireless power transmission, achieving high-power, efficient and stable wireless power supply for dynamic load on meter level, the cooperative operating mode with tight-strong coupling is proposed and analysed. By establishing unified mathematical...
This paper describes the design of the integrated jet-pipe servo-valve with high reliability, including the design scheme, the dynamic sealing structure for pistons, the structure design and optimization for hydrodynamic force compensation, the key indicators and parameters calculation, simulation and experimental verification. According to the large valve port opening size, mechanical operability...
Photodynamic therapy (PDT) is a safe treatment technology to treat malignant brain tumor, using laser to irradiate diseased tissue in the brain to treat malignant brain tumor. This paper designs the implanted miniature spiral receiving device (MSRD) operating at 796 kHz that receives transmitting coil (TX) energy through the resonant coupling power transmission (RCPT) to charge the Micro-LED (ML)...
The dynamic charging technology of electric vehicle (EV) is a new kind of charging method, which can solve the problem of long charging time, low energy density and limited driving distance. This paper is more focus on the optimization design of receiving coil of the EV driving wireless charging system. And an innovative multi-coupling structure that can cooperative operate is proposed. By building...
The fundamental principle of a novel wireless power transfer(WPT) technology is investigated in this paper through coupled mode theory. The concept of strong coupling is proposed considering coupling effect between eletromagnetic(EM) waves. It is simulated by equivalent circuit method and validated by experiment.
Wireless power transfer based on witricity technology is a new technology which energy can be transferred via coupled magnetic resonances in the non-radiative near-field. In order to verify its feasibility, coupled mode theory and power transfer system structure was proposed in this paper. Based on these analysis, The wireless power transfer experimental device is designed. Experimental results shows...
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