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The Basics of Wireless Charging and How It Works

October 26th, 2012 | Posted by Costea Lestoc in I've Always Wondered...

We live in a wireless world and every day, we send huge amounts of information through the airwaves. However, thanks to the innovation that Modern technology has come up with, we can now charge wirelessly as well. No, this is not a sci-fi rip-off, but in reality, it is possible now.

Wireless Charging

How does it work?

When we talk about wireless charging, we are referring to inductive charging. With this technology, a charging station creates a magnetic field around it when plugged in. If a device has proper induction coil, it will start receiving energy from that alternate magnetic field created when placed on the charging pad. This eliminates the need any physical connection for charging, makes your wireless devices truly wireless.

To make sure that wireless charging works properly, you need the specific hardware to be built into the device. If a device does not have built-in inductive charging coils, you might be able use an adapter or a sleeve depending on the device.

Earlier, there was no common standard for wireless charging and hence it never really was that popular in consumer electronics market. Things have changed a lot though after introduction of Wireless Power Consortium and Qi. Wireless Power Consortium is sponsored by numerous companies that seek a global standard for wireless charging.

Different Devices with Wireless Charging Enabled

For a long time, cordless toothbrushes and other bathroom devices have been using the wireless charging technology. The initial problem was that the efficiency was low and it used to take long time to get charged. Among the latest ones, Nokia Lumia 920 is known to be having the feature of wireless charging. Even, Intel is currently working on a magnetic device that can supply power to different peripherals.

Wireless Charging

Wireless charging is definitely safe as the conducting material is not exposed in this case. So you don’t need to worry when you touch it with your wet hands. Not to mention the trouble of carrying charging wires that it eradicates.

I will request you all to share your thoughts on wireless charging through the comments feature.

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