Qualcomm uses a wireless charging technology where people can get power by parking at an actual charging station. According to Fuel Fix (2011), the station can be located either above or below the ground. The drive simply parks like regular, the system aligns with the power source automatically, and transfers across an air gap at a high efficiency.
Wireless car charges work through electromagnetic induction. Basically, they use an electromagnetic field to transmit a charge, rather than the direct flow of an electric current. Electromagnetic induction was first discovered in the early 19th century by Michael Faraday. Faraday noticed that the electromagnetic field that formed around a coil when a current was passed through it could transfer a charge to another coil, so long as the second coil was within the range of the electromagnetic field.
Charging electric vehicles in this way requires that the vehicle have a receiving coil, so that when the car comes within the range of the trasmitting coil, it will pick up the electric charge. At the moment, wireless charging still requires going to a charging station and parking your car near the transmitter. The only difference is that you don’t have to get out of your car to plug it in. In the future, though, companies hope to have chargers installed in parking spaces, and even in roads so that you can pick up a charge wherever you are, even while the car is in motion.
Wow! That is so cool!
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