Experimental Verification of Coupling Effect and Power Transfer Capability of Dynamic Wireless Power Transfer

2018 ◽  
Author(s):  
Chan Anyapo ◽  
Nithiphat Teerakawanich ◽  
Chowarit Mitsantisuk ◽  
Kiyoshi Ohishi
Keyword(s):  
Experimental Verification ◽  
Coupling Effect ◽  
Wireless Power Transfer ◽  
Power Transfer ◽  
Wireless Power ◽  
Transfer Capability

Modeling and Experimental Verification of Bidirectional Wireless Power Transfer

2019 ◽  
Vol 29 (2) ◽  
pp. 1-5
Author(s):  
Zhang Hai Shi ◽  
Zhong Cai Qiu ◽  
Xiao Yuan Chen ◽  
Meng Yao Li
Keyword(s):  
Experimental Verification ◽  
Wireless Power Transfer ◽  
Power Transfer ◽  
Wireless Power

scholarly journals A 3D wireless charging cube with externally enhanced magnetic field for extended range of wireless power transfer

2019 ◽  
Vol 6 (1) ◽  
pp. 67-76 ◽  
Author(s):  
Qi Zhu ◽  
Hua Han ◽  
Mei Su ◽  
Aiguo Patrick Hu
Keyword(s):  
Electromotive Force ◽  
Three Dimensional ◽  
Wireless Power Transfer ◽  
Receiver Coil ◽  
Wireless Charging ◽  
Power Transfer ◽  
Wireless Power ◽  
Magnetic Cores ◽  
Transfer Capability ◽  
Extended Point

More mobile devices such as mobile phones and robots are wirelessly charged for convenience, simplicity, and safety, and it would be desirable to achieve three-dimensional (3D) wireless charging with high spatial freedom and long range. This paper proposes a 3D wireless charging cube with three orthogonal coils and supporting magnetic cores to enhance the magnetic flux outside the cube. The proposed system is simulated by Ansoft Maxwell and implemented by a downsized prototype. Both simulation and experimental results show that the magnetic cores can strengthen the magnitude of B-field outside the cube. The final prototype demonstrates that the power transfer distance outside the cube for getting the same induced electromotive force in the receiver coil is extended approximately by 50 mm using magnetic cores with a permeability of 2800. It is found that the magnitude of B-field outside the cube can be increased by increasing the width and the permeability of the magnetic cores. The measured results show that when the permeability of the magnetic cores is fixed, the induced electromotive force in the receiver coil at a point 300 mm away from the center of the cube is increased by about 2V when the width of the magnetic cores is increased from 50 to 100 mm. The increase in the induced electromotive force at an extended point implies a greater potential of wireless power transfer capability to the power pickup.

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