Wireless Electrical Via Electromagnetic Induction

Muhammad Syafiq, Noor Azizi (2014) Wireless Electrical Via Electromagnetic Induction. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Wireless Electricity transmission or wireless power transmission is the process takes place in any system where electrical energy is transmitted from a power source to an electrical load without interconnecting wires. The traditional ways by electric power cables and electric batteries are often not satisfactory for mobile devices. Use of plugs and wires will limit the mobility. Therefore, this project is to build and demonstrated the concept wireless power transfer at relatively large distances based on magnetic induction coupling between electromagnetic resonant objects. It consists of a transmitter as an electromagnetic resonator and a receiver to which the device to be powered is attached. The transmitter emits a non-radioactive magnetic field resonating at MHz frequencies, and the receiving unit resonates in that field. The maximum voltage can absorbed by the receiver load is 10V at 0 distances and decreased to 0.567V at 6 cm distance. From the experiment, the receiver has the voltage of 2.582V for input current 3A, 1.356V for input current 1A and 0.678V for input current 500mA at 0 distances. The basic principle involved by taking two coils having same magnetic resonance and one is coupled to source and the other one is coupled to device. However, the short distance between the two coils and the large coil size that use more space will become a problem. Thus, the number of turn of coil with better quality of copper wire and input current source can be increased to improve the strength of magnetic field. This is because, when the strength of the magnetic field increased, the distance between the two coils can be longer while smaller size of coil can be used to reduce space.

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• Wireless Electrical Via Electromagnetic Induction. (deposited 11 May 2016 08:21) [Currently Displayed]
  • ZigBee-Based Smart Home System. (deposited 11 May 2016 08:26)

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