TECHNOLOGY

Types of Wireless Charging [Explained]

Charging your phone can become such a problem if you are still living in the late ’90s and using wired chargers to recharge. With such astonishing technological advancements over the past two decades, you have the option to go wireless, yes, completely!

When I bought my first phone, I remember spending hours on my Spectrum internet assist package at home, looking for tricks and hacks to extend the battery life of my phone, and of the charging cable. It was of no use. Those cables bend with time, and you have to buy another one (sometimes more than once) before it is time to change your phone. 

Wireless charging mostly supports the phone battery and helps it to stay juiced up for a longer time. Wireless chargers are available in different colors and models, depending on the manufacturer, but they all do the same thing: they can charge your mobile without having to connect it to a charging cable. Let’s talk more about wireless technology, its advantages, and disadvantages! 

Wireless Charging

If you think that wireless technology is a recent technology, you haven’t been very attentive regarding your surroundings. If you have ever used an electric toothbrush, you have very much used this technology right inside your bathroom. The charging dock works as a power-filling device to keep it charged up. 

So, wireless charging can be defined as a transference of power from the outlet source to your device, without involving any wire or cable for doing so. It needs a power source outlet (which is a pad, most of the time), and a receiver (which is a mobile, most of the time). Mobile phones can have an attached case to work as a receiver, and they also come up with built-in receivers to support wireless charging. When I mentioned no cables are needed, it didn’t include the one that connects the pad (the power outlet) to the electricity source. Technology hasn’t gotten that far yet. 

Wireless Charging- The Mechanism

Talking about the working mechanism behind wireless charging, we can classify it into three main types. The most common, which I am sure you have come across, is through a charging pad, which uses tightly-knit electromagnetic or non-radiative charging. Then we have charging bowls, which use loosely-knit or radiative electromagnetic-resonant charging. These bowls can only transmit the charge to a distance of a few centimeters. The third type, non-coupled charging, is a type of wireless charging that can charge a device from a distance of up to 5 feet. 

The tightly-knit and the loosely-knit resonant charging methods work on a similar principle of physics. They create a magnetic field with varying time span, which induces power into a closed loop of a cable. 

Let me explain this a bit. A copper coil (magnetic) creates an oscillating magnetic field. This magnetic field can transmit current to one or more than one receiving antennas. If the configuration is done in such a way that both the loops resonate at the same frequency, the power value in the receivers doubles in quantity. This is called resonant inductive charging, also known as magnetic resonance. It allows the power source to transmit and receive power signals even from a great distance. If you increase the size of the coil, it will automatically increase the charging distance range. 

When it comes to mobile charging wireless pads, the coils are smaller. It lessens the pad’s capability of charging beyond a certain distance. here you may also know about best active noise cancelling true wireless earbuds in 2020. 

Wireless Charging- Advantages

To start with, this is the safest method to charge your mobile phone. Also, it increases the life of your mobile by putting little, in fact, no strain on your charging port. All you have to do is to place your phone on the charging pad. This technology is getting popular all around the world too. You can find wireless charging pads installed at various public places. So if you ever face a situation when your mobile battery is drained and you have people to connect to, you can look for one to help you out!   

Wireless Charging- Disadvantages

Whatever amazing technology we talk about, there are disadvantages to face too! When we talk about wireless charging technology disadvantages, it is comparatively slower, as compared to charging your phone through a wall socket. Since we are all addicted to our phones, and having to wait during charging time is very difficult.

Most of us don’t (yes, even though we know it is not good for the battery life of the phone), so wireless charging is not for us. Because the moment you lift your phone to check a notification, or just take a second to check Spectrum internet prices because you have to renew your package, it is disconnected from the charger. Most phones are not compatible yet either.