Wireless charging has become one of the most common functions on Android. You can see how the number of smartphones that make use of it has increased. Therefore, it is something that appears more and more frequently in the news. At the same time, it remains a complete unknown for a large number of users.
It is something that must change. Therefore, below we talk about this wireless charging on Android. The phones that currently support it to some chargers that are compatible with it from what it is. So that you have a clear picture of what this type of load entails today.
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What is Wireless Charging, and How does it Work
On Android, all smartphones that make use of wireless charging rely on Qi technology. It is a type of charge that allows you to charge the device without connecting it to a cable, as in traditional charging. In this case, you have to place the device on a compatible base or charger. It is even possible to separate it a small distance, up to about 40 millimetres in most cases, but it will continue to charge normally.
Qi wireless charging was developed by the Wireless Power Consortium, also known as WPC. It is a technology-based on an electromagnetic induction electricity transmission system. For it to work, there need to be two devices. On the one hand, there must be a charger and the device in question, a smartphone in this case. Inside the charger, there is a flat coil through which electric current flows, creating an ascending magnetic field.
In the smartphone, there is another coil. By placing the smartphone on the charger so that the two rings are aligned, the charger’s magnetic field passes through the phone’s lock. A current is generated, which is responsible for charging the device’s battery. Device coils must match. However, several waves are usually incorporated in the charger’s case so that the phone does not always have to be centred and place the device vertically if desired.
Chargers that use wireless charging and have multiple coils are known as free-positioning induction ones. The electromagnetic field harbours a larger surface area in this situation. It is something that also helps to avoid misalignment in the load of the device.
One aspect that is probably already known is that smartphones with wireless charging are not made of metal. They are frequently made of glass or plastic, although most are usually high-end, so the glass is used as the main material. The reason for this decision is not accidental. They are chosen because metal is a conductor of electricity, which does not happen in glass. If metal is used, it will heat up, which is dangerous.
Power has historically been the weak point of wireless charging. It has always been commented that it is slower than normal load, which is correct. The problem in this regard is that the power transfer is not always equitable. For this reason, efforts have been made from the beginning to introduce improvements in this field.
Wireless charging requires more power to work than the device can receive. However, successive revisions of the Qi standard have managed to introduce a more powerful charge. It allows the time it takes for the smartphone to charge to be reduced and maintain the cargo’s security at all times. It was preventing the smartphone from overheating.
Typically, in Qi wireless charging, the energy transfer is about 5W. There may remain cases where it is higher, especially if the receiver requires a greater amount of power. Besides, some chargers give a higher power. However, it depends on each model individually.
Smartphones that support wireless charging habitually come with such a charger. If not, the brands make an official one available to consumers. But there is also a great selection of third-party chargers that can be of great interest to users. Although when looking for one, you have to take two aspects into account.
On the one hand, the power of the charger must be considered. The control it usually offers is variable. Therefore, this must be checked beforehand, especially if you think of purchasing a powerful 15W charger.
The loading position can be something that interests users as well. Some chargers allow you to put the smartphone vertically, which will enable you to read on the screen if you receive a message easily. Depending on the specific model, it is possible to have several positions when charging the phone.
These two aspects of the account will be easy to choose a suitable charger for each user. So you can get the maximum out of wireless charging on your phone at all times. Also, there are currently not only compatible chargers.
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