How Wireless Charging Technology Works On Smartphone

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According to Wikipedia – Inductive charging (also known as wireless charging or cordless charging) uses an electromagnetic field to transfer energy between two objects through electromagnetic induction.

This is usually achieved through a charging station. Energy is sent through an inductive coupling to an electrical device, which can then use that energy to charge batteries or run the device.

In this article i will be highlighting you on how wireless charge works. Wireless chargers use magnetic induction. They use magnetism to transmit energy. First, you place a smartphone on the wireless charger. The current coming from the wall power outlet moves through the wire in the wireless charger, creating a magnetic field.

The magnetic field creates a current in the coil inside the device sitting on the wireless charger. This magnetic energy is converted to electrical energy, which is used to charge the battery. Devices must have the appropriate hardware in them to support wireless charging—a device without the necessary coil can’t charge wirelessly.

Qi Standard for Wireless Charging Of Battery

Qi (pronounced Chee, as in Cheese) is the universal standard for wireless charging of battery operated devices such as cell phones, iPods, MP3 players and cameras. The wireless power transfer occurs through electromagnetic induction.

Qi is more preferable due to the fact that the device can be up to 45mm away from the wireless charger’s surface rather than touching it directly. Although the standard is not as efficient as magnetic induction, it comes with some advantages—for example, your wireless charger can be placed under a table surface while the device is placed on the table for charging. It also lets you to place multiple devices on a single charging pad, and have all of them charge at once.

Smartphone That Supports The Wireless Charging

  • Apple iPhone 8, iPhone 8 Plus, and iPhone X
  • Samsung Galaxy Note8, Galaxy Note9 and Galaxy Note5
  • Samsung Galaxy S8, S9, S9+,S8+, S8 Active, S7, S7 Edge, S7 Active
  • LG G6 (US and Canada versions only) and LG V30
  • Motorola Moto Z, Moto Z Play, Moto Z2 Force

 

If you have a low end device, You can still use the wireless charging technology. There are a couple of methods to achieve this but the easiest way is by using a stick-on wireless charging adapter. Stick-on adapters offer a more universal solution.

But Still yet If your phone doesn’t have the circular RF induction coil that’s the core of any wireless charging device, just add one on. It’s a flexible solution that needs only a few basic models to cover almost any phone.

The advantage to stick-on adapters is availability. All you have to do is just place one of these external pads up to your phone’s charging port (USB-C, Apple Lightning, or MicroUSB), stick it on the back, and you’re good to go. They’re also much cheaper than wireless charging cases, and they’re slim enough to fit underneath the plastic of a standard, non-charging phone case.

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