Wireless Charging for all mobile Phones
Started in 2008, Qi (standard developed by WPC (Wireless Power Consortium) is for inductive charging. Qi is from the Chinese word qi- energy flow-can cover distances of up to 4 cm. Apple, Asus, HTC, Huawei, LG Electronics, Motorola Mobility, Nokia, Samsung, BlackBerry, and Sony are the users. Inter connectivity between equipment is possible as far as they are Qi compliant. This is contrary to different manufacturers claim. As long as the charger matches the wireless charging standard supported by your smartphone you can use any wireless charger.
Besides cell phones, others are also in the picture like IKEA, for example, sells a variety of furniture pieces that incorporate Qi wireless charging, including tables.
If you have a wireless charging, so there’s no need to reach for a cable any more. Simply placing the wireless charger face up on a special mat or table top is enough to start charging up your smartphone’s battery or any number of different smartphones that support wireless charging.
Generally wireless charging is slower than charging via a cable for smartphones that include fast-charging technology. However some wireless chargers are faster than others, with modern higher-powered chargers capable of fully charging a large battery smartphone in around two hours. They’re typically rated by wattage, with 5W and 10W chargers common, or by output amperage, with 1A at 5V wireless chargers comparable to a standard 1A USB cable charger such as that that comes with the iPhone 7.
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.
They typically have to be in close proximity to each other and correctly aligned over the top of each other, although a set orientation is normally not necessary. Some laptops can also be charged wirelessly.
Apple’s AirPower wireless charger can charge more than one Apple device at the same time, including the Apple Watch and AirPods, with its new wireless charging case.
As long as the charger matches the wireless charging standard supported by your smartphone you can use any wireless charger. It may not work through thick cases. As the wireless chargers cannot be performed through metal with current technology most wireless charging smartphones have either plastic or glass back.