As electric vehicles gain popularity, consumers will be waking up one morning and horrified that they've forgotten to plug the car in and are now stranded. But, not if they use wireless charging! Wireless charging is quickly becoming commonplace for consumer devices and the same concept for electric cars and busses isn't far behind. Similar to the consumer world, wireless charging of vehicles uses principles of magnetic induction and / or resonance, though at much greater power levels. For example, the new A4WP resonance charging standard offers 6.5W for smart phones. In comparison, vehicle charging start-up WiTricity's charging technology for passenger cars is 6kW and a huge 25kw for busses and fleets.
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