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Future applications of wireless power transfer will include powering various devices in a room, charging electric vehicles in a parking area, charging moving robots and so on. Therefore practical wireless power transfer must be able to support complicated configurations for example combination of multi-receiver and repeaters. Many past works have discussed on methods for improving efficiency and more...
Future electric vehicles (EVs) will be linked to the electric power system infrastructure; the vehicles will operate through frequent electric charging, as is the case with electric trains. Conventional batteries require a long recharging time; therefore, supercapacitors, rather than batteries, will play an important role in the future for charging of EVs. Recently, we manufactured small EVs powered...
In the technology of wireless power transfer, electromagnetic coupling using resonance can transfer across a large air gap without losing its high efficiency and power. In this technology, the role of antennas is very important. In this paper, magnetic resonant coupling using helical antennas is proposed. The helical antennas are two types- one is open end and the other is short end helical antennas...
Wireless power transfer is required for the diffusion of Electric Vehicles (EVs) because it makes possible the process of automatically charging EVs. The technology of wireless power transfer requires three main elements: large air gaps, high efficiency and a large amount of power. Though, there has been no such technology, recently, the technology of electromagnetic resonant couplings was proposed...
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