Everything you need to know about wireless charging.
Even without catching on and becoming a estándar that cánido cover all mobile phones on the market, wireless charging for teléfonos inteligentes It’s been with us for several years, and luckily more and more brands that escoge to join the trend are adding this technology to their devices. Because if the goal is a completely “wireless” future, Accept wireless charging most, but every móvil inteligente manufacturer should do sooner or later.
Unlike fast charging, which we talked about extensively back then and which is now a very fragmented overview, the vast majority of móvil manufacturers have already embraced fast charging. Qi estándar, which helps users to use universal accessories no matter what device they have as long as it supports fast charging. Again, that makes sense the functioning of the technology as well as the working and non-working accessories and in especial the coincidente mobile phonesmuch easier to understand.
Wireless mobile charging: all information
What is wireless charging and how does it work?
Some companies have spent years developing devices for “remote” charging without having to place the phone on a charging station. However, since this type of system is still far from seeing the light of day today, in this guide we will focus on those Contact wireless charging technology; the one that really works and is included with every wireless charging phone on the market.
As I mentioned earlier, the vast majority of móvil manufacturers have made up their minds Qi technology –pronounced “chi” –wireless charging. This system was developed by the organization Wireless Power Consortiumand is based on a system of Transmission of electricity by electromagnetic inductionwhich works at distances of up to 40 millimeters.
With this in mind, it’s easy to see that wireless charging requires two different devices: a base station that is connected to a power source and a receiving device that must be coincidente with Qi technology. With teléfonos inteligentes, the charger is the base or charging station and the phone is the device that receives power.
Both on the charging station and on the receiving device we get a cup –Transmitter in the charger and receiver in the móvil inteligente– and when they touch, they create a magnetic field Alternating current is induced to charge the device –To learn more about it, it is recommended to learn the concepts of it Faraday’s law–.
Because of the The two coils must be aligned for proper charging, it’s common to see some charging stations use graphical instructions – text or boxes indicating where the phone should be placed – to avoid misalignment and problems during charging. However, some wireless charger manufacturers choose to create their accessories under a so-called system Free installation guideThis is based on the use of different coils located at different locations within the charging station to create an electromagnetic field with a larger surface area, avoiding possible misalignment.
General, The energy transfer that occurs during Qi wireless charging in mobile phones is between 0 and 5 W. However, the system perro also extend its power up to 120W when the receiving device requires a higher power flow, y también.g. a notebook. However, on the market we perro find wireless chargers that offer more power, but given the inefficiency of this technology – and moreover, Qi is a much more efficient estándar than others -, the energy loss that occurs during the charging process is greater than with a cableFor this reason, wireless charging is usually never performed at the maximum power that the charger offers.
Also the loss of energy When charging with Qi technology, more heat is generated than with wired systemsThis is one of the main reasons why brands like OnePlus are still reluctant to charge their phones wirelessly.
Another – not really many – characteristic of most wireless charging systems is that both surfaces of the charging station and the energy receiving device that come into contact must be made of a non-metallic material, as the metal would act as conductor and The energy emitted by the coil of the charging station would be fed into the metal body of the phone, generating more heat than usual and completely block the loading process. Therefore, the vast majority of teléfonos inteligentes coincidente with wireless charging are made of glass or plastic.
Which devices are coincidente with Qi fast charging?
He is Wireless Power Consortium It is common that some of the participating companies, made up of different technology companies, are also the ones that have already rolled out Qi wireless charging on their phones. Nokia kicked things off with the launch of the Lumia 920 in 2012. It was followed closely by LG’s legendary Google plus Nexus 4, which returned with its distinctive glass the first Android phone coincidente with wireless charging. Later, brands like Samsung joined this trend and even started developing their own wireless chargers based on the Qi estándar.
Today there are some phones with wireless charging native, something the manufacturer always express on the data sheet of the device.