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wireless charging
- Apr 28, 2018 -

What’s ‘Qi’ wireless charging?

There are a couple of competing standards in the wireless charging industry designed for portable gadgets such as smartphones. Most smartphones support both the Wireless Power Consortium’s Qi and the PMA or AirFuel Alliance standards, meaning that they will work on most available chargers.

Qi is rapidly becoming the most popular wireless charging standard, and the one used by Apple for its new iPhone 8 and iPhone X.

How does it work?

Wireless charging works by transferring energy from the charger to a receiver in the back of the phone via electromagnetic induction. The charger uses an induction coil to create an alternating electromagnetic field, which the receiver coil in the phone converts back into electricity to be fed into the battery.