What is and how does wireless charging work on mobile phones?, Mobile phones have been our personal computers for quite some time. We carry them around constantly, we use them to communicate with each other and. Also as personal assistants, portable game console, camera, quick reference library and mobile workplace. That’s why we need them to be turned on as long as possible, and there the batteries go.
That is why our cell phones are so important and therefore, although they do not grow in size as they should. They evolve more or less evenly and add different characteristics to facilitate their replenishment. As fast charging or as wireless charging, it carries a lot of us but is about to “return to fashion”, perhaps with enough strength to become standard. But do you really know how it works?
What is and how does wireless charging work on mobile phones?
Wireless or contact charge?
It is the big question that divides those who already consider it wireless as such, and those who wait for it to become what your mobile promises, a charge that works even if we have the phone in hand. Enter a specific room and the mobile begin to regain vitality. Something that may happen in the future but, at least for now, seems to be beyond the horizon.
In any case, the wireless load would have to be called charge by induction or electromagnetic charge, because that is how it works. The system is very simple, within the complexity of its development and execution. Basically, it consists of generating an electromagnetic field and emitter of energy, and get to capture the energy at the other end. The electromagnetic field is generated by the support for charging and the receiver is the mobile phone.
To achieve this, both have electromagnetic induction coils. The charging cradle, connected to the electric current, uses this coil to convert the electricity it receives from the plug into the high-frequency alternating current, and in turn generates a latent electromagnetic field with it, waiting for the arrival of another coil which can transmit electricity. The coil of the mobile phone.
Once the first coil, the charger, detects the presence of a telephone compatible with the induction charging system, thanks to a flashing signal that sends on a regular basis waiting for a response, the transmission of energy begins through this field. And that’s how the power goes from the charger to the mobile phone without having to connect any cables between them. All thanks to magnetism.
There are different standards
As we said at the outset, maybe now is the time when the wireless load finally explodes because now Apple has decided to get in the car, and its position as “recommendation” should not be taken lightly. Apple has decided that the standard of wireless charging of its phones will be Qi(pronounced ‘chi’), the most widespread in the world but it is not the only one.
Together with the Qi standard, which charges through fairly high frequencies and requires closeness between the two coils, the PMA standard coexists. In PMA they follow a course similar to Qi although their magnetic resonance load technology is slightly less efficient than Qi, although it allows for larger electromagnetic fields and, therefore, the phone does not have to be exactly glued to the coil. The result is that with PMA we can have wider loading surfaces to load a mobile or several simultaneously, thanks to the same support.
On the playing field of the wireless charge also heats WattUp, a system that allows a greater distance between the charger and the phones. Specifically you can load devices up to five meters from the charging station. A feature that alone would make WattUp, and no other more, correspond to the name of “wireless load” as such. Or at least it was not considered contact charge. And finally is Cote, which can charge phones up to 10 metersaway thanks to the use of wireless connections such as WiFi or Bluetooth. Unfortunately it is too slow (1 watt).
Qi is winning, and 2018 can be Qi year
As we see, there are few standards in the wireless charging market although Qi takes advantage. Not only because it is the method adopted by the major manufacturers in the market, such as Samsung, LG, Lenovo or Apple and Xiaomi recently. but because it has the most developed development and is, on paper, the most efficient at the time of transmitting energy from point A to point B. From the charger to the mobile phone.
Be that as it may, wireless charging takes a lot of us but the time has come when it could explode to become a standard in the market. As they have already done the fast loads or how the Bluetooth was imposed in its day. Perhaps the day is not far off when you do not understand a mobile phone without the possibility of charging it wirelessly or by contact, as we prefer to call the system. And that will benefit us all. Not only to be able to start erasing cables when it comes to interacting with the phones but to be able to close one more port, the USB, to achieve the total tightness of the mobile phones. Although that does seem a little more distant.