Since more and more devices are adopting wireless charging, how much will the technology improve? See how wireless charging works and how it will become even faster in the future.
How wireless charging works
Many of the most popular electronic gadgets today - from state-of-the-art mobile phones to cordless headphones - have wireless charging. Apple, the Samsung and LG have implemented this feature on many of their devices.
Wireless charging allows users to place their device on a wall-mounted pad and then start charging - no cables needed.
Most modern wireless chargers use a procedure called magnetic induction. This involves converting the magnetic energy from the charging panel to electric power through a coil inside the device. This energy is then used to charge it battery. This is why more appliances are made of glass instead of metal - glass has better induction.
Wireless is one of the most standard forms of charging. Unlike wired chargers, which require a variety of standards and connectors, most wireless chargers use the Qi standard established by the Wireless Power Consortium (WPC). This means that a standard charging pad will work well with their case Apple Airpods as well as with one Galaxy Note.
Accelerate wireless charging delivery
Fast charging works by increasing the number of watts delivered to a phone battery. However, this must work for both. Manufacturers must design their devices in such a way that they can handle fast charging.
In the past, wireless charging was slow and did not offer much flexibility in installation. The first options could only charge 5 watts or less, which was significantly less than wired charging.
Now, wireless chargers using the Qi standard can charge up to 15 Watts on compatible devices. This charging speed is called the Extended Power Profile (EPP).
Wireless charging uses a method similar to wired for power supply. Follows the following procedure:
- Detection: The transmitter detects if a Qi compatible device is on it.
- Full power: If the receiver is in the latest version of Qi, it will receive up to 15 Watts of power from the compatible transmitter.
- Heat Detection: Transmitters have a heat test, which allows them to detect if a device is warming up. If yes, the transmitter will slow down the power output.
- Completion: When the receiver battery is full, the Qi pad stops charging the device.
This process ensures the safety of your devices and prevents them from overheating or damaging their batteries. It also ensures that a device will not be overloaded by the transmitter, so you can let your phone charge overnight safely.