How Do Wireless Chargers Work?

There are hundreds of things in the average home that need electricity or regular recharging - laptops, mobile phones, tablets, mp3 players, electric toothbrushes, shavers, kettles; the list goes on and on. Although all these inventions are fantastic modern conveniences that many of us couldn't be without, the tangled mass of dusty wires that accompany them can be very unsightly and even be a trip hazard if you are not careful. Wireless chargers are a fantastic invention that allows some of these devices to be recharged or operate without the need for wires!

Scientists have discovered that an electromagnetic field can used to transfer energy between two objects, which are in close proximity to each other, without the need for wires connecting the two. Every time a current moves through a normal wire, an electromagnetic field is created around the wire. If the wire is bent into a coil, the magnetic field is amplified, and a bigger field can be created by using a coil with more loops. If you place a second wire, near enough to the first one, the magnetic field can induce a current in the second wire. In wireless chargers, when energy is sent through the primary transmission induction coil in the charging station, an alternating electromagnetic field is created, which then induces a current in the secondary receiving coil in the device that needs charging. Current in the secondary coil is used to charge the batteries of the device. Wireless charging is therefore also sometimes known as inductive charging.

Because the primary coil and the secondary coil do not have to be connected to each other, it is actually possible for the electromagnetic field from one primary coil in a charging device, to be able to induce voltage in one or more entirely separate secondary coils. It is therefore possible to purchase wireless chargers that allow you to charge a mobile phone, a camera and an MP3 player, all at the same time!

They are very simple to use and as long as wireless charging devices are used in the ways which are specified by the manufacturer, they are safe and do not pose any known risk of unsafe radiation.

The science behind a wireless charger device is uncomplicated. If you think you have too many wires in your house, it may be time to invest in a wireless charger. You can get more information at QI wireless Charger and N7100 wireless charger.

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