Wireless charging – the working principle behind it

Wireless charging – the working principle behind it

Just as humanity got a hang of using the microUSB to charge anything and everything, the stakes for a new and innovative product came along. That Product is the wireless charging. To start off with the basics, it uses the concept of electromagnetic induction to transmit power from a source pad to the batteries in phone through mid-air.

Digging in deeper towards its actual workflow, I am sure you would remember Nikola tesla the great scientist who started the idea of wireless transmission back in 1893. He stated that you could transfer power between two objects via an electromagnetic field, well here’s our first clue. And the ideology behind electromagnetic induction is using a loop of coiled wires around a bar magnet. And when an electric current passes through the coiled wire, it creates an electromagnetic field around the magnet, which can then be used to transfer a voltage, or charge, to something nearby.

And today’s modern technology has paved way in its contribution to size reduction and hence wireless charging was made possible. You get a pad on top of which you place your mobile for it to charge, herer the pad contains a small bar magnet that is looped around with very thin coiled wires over and over. This acts as an electromagnetic inductor thus allowing power to be transmitted to a nearby device.

The smartest move of our developers would be installing tiny transmitters that communicate with small receivers in a device, such as a phone – the Qi wireless charging technology. This allows you to use wireless charging platforms to only those devices having qi enabled in them.

But wireless power may soon extend to many more applications as technology improves, it may even be possible to charge bigger and more power-hungry devices in the future.

 

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