A new metal detection method based on balanced coil for mobile phone wireless charging system

The wireless charging time of mobile phone will increase greatly if the metal objects mix in the magnetic field coupling area. In addition, the fire may be caused as for the high temperature of metal objects. The paper proposed an improved detecting method based on balance coil for mobile phone wire...

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Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2016-08, Vol.40 (1), p.12029
Main Authors: Zhou, B, Liu, Z Z, Chen, H X, Zeng, H, Hei, T
Format: Article
Language:English
Subjects:
Cell phones
Cellular telephones
Circuits
Coils
High temperature
Magnetic fields
Metals
Object recognition
Theoretical analysis
Wireless power transmission
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Summary:The wireless charging time of mobile phone will increase greatly if the metal objects mix in the magnetic field coupling area. In addition, the fire may be caused as for the high temperature of metal objects. The paper proposed an improved detecting method based on balance coil for mobile phone wireless charging system according to comparing the advantages and disadvantages of traditional metal detection methods. The circuit model was established, and hardware and software were optimized. At last, experimental results verified the theoretical analysis.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/40/1/012029