Friday, 14 August 2020

Time To Kiss Wired Chargers Goodbye!

Updated: March 28, 2015 11:54 am

Soon the world will renounce the wired charging and will opt for wireless charging. But will it be effective?

With the announcement of Samsung S6, speculation on the future of the wireless charging has shifted to its top gear. To ease the stress of a dying mobile phone battery and the hassle of bundling wires into your bag, designers are hoping to make 2015 the year of the wireless charger. Companies at the Mobile World Congress, a top telecom fair which wrapped up last week in Barcelona, Spain, promised that soon you will just place your phone on a table or lamp stand for it to absorb electricity through a wireless surface. So let’s understand how wireless charging works and what the entire things one should keep in mind.

How wireless charging works?

Wireless charging is more accurately described as “inductive charging” because it uses magnetic induction. The short explanation is that it uses magnetism to transmit energy. 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. This coil is connected to the battery and the current charges the battery. Devices must have the appropriate hardware in them to support wireless charging—a device without the appropriate coil can’t charge wirelessly.

Wirless charger

How do you set it up?

Once you’ve determined if your device is compatible to wireless charging and whether or not you need a special cover, you’re ready to charge. One of the beauties of wireless charging—and yes, we realise there are many—is how easy it really is. Simply plug in the charging dock and place your device on the charging pad. Then, watch your device juice up. It’s actually that simple.

What are the standard operators?

The standards are designed to ensure that devices and wireless chargers from different companies can work together. Till now there are three standards: Qi, PMA (Power Matter Alliance) Powermat, and A4WP (Alliance for Wireless Power). Things are very much in flux at the moment. While current devices overwhelmingly use the Qi standard, it looks like the PMA standard may be the most popular one in the future—which means that current devices may be incompatible with most wireless chargers in the future. It’s also possible that another standard may take over.

By Rohan Pal

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