Developing a Wireless Charging Concept via Loosely Coupled Inductive Power Transfer for Mobile Applications
Keywords:Inductive power transfer, develop, WPT, stationary source, moving load, small scale model, low power prototype, LCIPT, electric vehicle
This paper aims to develop a charging method for mobile applications, i.e electric vehicle via loosely coupled inductive power transfer (LCIPT) method. This method enables wireless power transmission from a stationary power source to a moving load, which is the electric vehicle in our case. In this paper, a prototype capable to deliver power efficiently from a stationary power source to a moving load is developed. The prototype is designed in a small scale low power model of 12 Volt 5 Watt DC input in order to prove the proposed method is applicable and could be widely used in future works through the evolution of wireless power transfer (WPT) technology. To be specific, in this project, Class E resonant inverter is used to convert the DC source to AC source at 1 MHz resonant frequency. Analysis is done on different configurations and setups of the transmission coils. Compensator circuit is also designed at the transmission coil to boost the power transfer efficiency. The output of the wireless power transmission is tested on DC-motorcar and LED. At the end, a prototype is successfully developed.
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