How does wireless charging work?

in Blog

Wireless charging has been around for a few years now. Samsung introduced it with the Galaxy S6 in 2015, and Apple’s first wireless charging model was the iPhone 8 in 2017.

Wireless charging uses a changing magnetic field in the wireless charger base to induce a current into a coil of wire in your phone. An Electromagnet in the charging base uses
electricity to create a magnetic field around the charging base. This magnetic field is the one that induces a current into the coil in your smartphone using a law of physics
called Faraday’s Law.

How quickly your phone receives power depends on the strength of the magnetic field, the length of copper which is in the coil in your phone and the frequency or speed which the magnetic field fluctuates.

The iPhone 11 Pro pictured below has significantly more copper coils than the previous picture. This would enable it to charge more efficiently than the smart phone in the first photo.

Both of these devices were repaired at here Casphone.

Wireless charging is a great way to stop damage from happening to your charging port (which is used for so many other things these days). Reducing the amount you plug in and remove reduces the likelihood of pins inside the port bending, or the plastic surround weakening causing a bad connection.

In terms of the negatives of wireless charging, the biggest downside is that it takes a little bit longer. Given that electricity needs to travel a distance of 1-2cm through the charging pad, any phone case and the back of the smartphone itself, there is slight drop in power transmitted. This increases charge times by around an hour.

Overall, wireless charging is an easy and convenient way to recharge your smart device without causing any damage to the multi-function port commonly used to charge.

Author: Zachary Norkunas / Casphone Blue Water Square





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