In-road electric vehicle charger | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-06-29

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Inductive_charging


00:01:28 1 History
00:05:13 2 Application areas
00:06:21 3 Advantages
00:08:03 4 Disadvantages
00:10:29 5 Standards
00:12:23 6 In modern smartphones
00:13:49 7 Examples
00:18:49 7.1 Research and other
00:19:51 8 Transportation
00:20:01 8.1 Electric vehicles
00:22:43 8.2 Research and other
00:22:52 8.2.1 Stationary
00:25:39 8.2.2 Dynamic
00:26:44 9 Medical implications
00:28:15 10 Future technology
00:30:05 11 See also



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SUMMARY
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Inductive charging (also known as wireless charging or cordless charging) is a type of wireless charging that uses an electromagnetic field to transfer energy between two objects using electromagnetic induction, the production of electricity across a magnetic field. It is usually done with a charging station. Energy is sent through an inductive coupling to an electrical device, which can then use that energy to charge batteries or run the device. It is the technology that enables smartphone wireless charging, such as the Qi wireless charging standard.
Induction chargers use an induction coil to create an alternating electromagnetic field from within a charging base, and a second induction coil in the portable device takes power from the electromagnetic field and converts it back into electric current to charge the battery. The two induction coils in proximity combine to form an electrical transformer. Greater distances between sender and receiver coils can be achieved when the inductive charging system uses resonant inductive coupling.
Recent improvements to this resonant system include using a movable transmission coil (i.e., mounted on an elevating platform or arm) and the use of other materials for the receiver coil made of silver plated copper or sometimes aluminium to minimize weight and decrease resistance due to the skin effect.