Wireless charging technology

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Wireless charging technology is a game-changer technology in today’s world. It plays a vital role in the field of science.

 This is the era of modern technology in which wireless charging technology is growing over time. In earlier centuries, there was no concept of technology. There were no smartphones, no social media apps. Gradually many new inventions were made with the advancement of technology. Numerous new things are introduced.

When smartphones were initially launched, there were corded chargers for them. Slowly the chargers were replaced by power banks. At present, there is a new charging technology rising in the digital market that is the technology of wireless charging. You might be curious to know more about this technology. The standard that defines wireless charging is Qi.


Here, you will see wireless charging technology explained in detail. We also call it inductive charging. In inductive charging, power transfer happens between the phone and the charger through electromagnetic induction. It rose in the 19th century after Nikola Tesla demonstrated magnetic resonant coupling. For more than a century, it was away from the practical implications. Now, a wide range of companies offers wireless chargers with their phones and other electronic items.

Furthermore, wireless charging is taking root in the healthcare sector as well as in the automotive industry. The most popular smartphone brand Apple incorporated wireless charging technology in iPhone 8 and iPhone X.Wireless charging technology is snowballing. So the market for wireless charging pads is also growing. 

How does it works?

As Qi is the standard of wireless charging, it can charge any phone. There is a wide variety of Qi wireless charging pads with the difference in specs and price. Some devices charge one device and some charge multiple devices. These pads work on the principle of electromagnetic induction.

Firstly, an electric current is passed through two coils which creates the charger’s power, resulting in an electromagnetic field in the wireless charging pad. An electric current is generated by the device when phone’s magnetic plate comes in contact with the transmitter. This is because of the magnetic field. Then the Current is converted into the direct current which results in the charging of the device’s battery.

Inductive charging needs built-in hardware to function called coils.Meanwhile, most of the devices do not have built-in coils. This is why they do not support wireless charging. An adapter is attached to charge them.

Moreover, not only smart phones support wireless charging. Many other items, like smartwatches, earphones, cars, and some other home appliances, are also charged in this way.

If your phone does not support wireless charging, there are wireless charging cases manufactured. You can put your phone in a case, and it will allow the inductive loop to charge it. These cases are most commonly available for iPhones.


Numerous companies are now working on wireless charging technology. Every upcoming model has new upgraded features. Most famous charging companies include

Power Cast

It is a wireless charging company developed in 2003. It was established to overcome conventional power solutions limitations.


WiTricity was established in 2007 after splitting from MIT. This company pursued the manufacturing of wireless consumer appliances and electric vehicles.


The company was launched in 2013, promoting the motive of next-generation wireless power and wireless charging.


Tesla is an American company that deals with electric vehicles initiated by Nikola Tesla in 2003. 

Wireless Power

This is another private American based company dealing in wireless charging technology by manufacturing phones, electronics, automotive parts and much more.


Thiscompany is based on Cota technology. The wireless charging method used by them is Radio Frequency charging, which helps to charge multiple devices. A physicist named Hatem Zeine invented this Cota technology. He is also the founder of Ossia.


Chargifi was founded in 2013, having a similar aim as other companies. This company allows the retailer to provide ‘Chargify spots’ where people can charge their phones without a charger.


uBeam was launched in the year 2011. It offers the solution to charging devices wirelessly. The electricity is changed into ultrasonic sound waves for transferring waves.


Founded in 2013 and focuses on rapid charging infrastructure for vehicles.


Navitas is based on semiconductor technology and provides wireless charging through high-density power ICs. This company was introduced in 2013. Furthermore, it gives wireless chargers for mobile phones, tablets, laptops, LED lights, and other electronic devices.


Not all devices use the same method of charging. There are three types of wireless charging 

Inductive charging

In an inductive charging method, we place our device on a wireless charging pad. The waves generated in pad are transferred to device like this.The phenomenon of Inductive coupling is used in the transferring of energy. The AC passes through the induction coil to the wireless charging pad.Handy devices like tablets, smartphones, or Mp3 playersuses the inductive charging method.Many models of iPhone and Samsung use this wireless charging technology. Additionally, OralB rechargeable brushes use inductive charging technology.

Radio charging

Radio charging charges products having small batteries and need low power. Radio frequencies are used to charge a device.At first, the charger is connected to the socket. Then, the charger converts current into electromagnetic waves. Antennas of the devices send electromagnetic waves to the device. After that, the device receives the electromagnetic waves and converts them back into the current. Thus, your device is chargedin this way. Radio charging is not affected by the distance like inductive charging.  Radio charging is typical in wireless keyboards, watches, medical devices, smartphones, and many more.

Resonance charging

The last-mentioned method is resonance charging. This type of wireless charging is different from the rest. In this method, a large amount of power because it charges cars, robots, or computers. The two copper coils are used here. These wires are attached to receiver device and the power source. They transfer energy when kept close to each other. Because energy transfer takes place when the same resonant frequency objectsare placed near each other.


This article is Wireless charging technology Wikipedia that provides a great deal of information. From history to the methods of charging and top firms dealing with wireless technology. Now let us have a look at the phones which are based on wireless technology.

Nowadays, wireless charging phones are seen everywhere. Using a corded charger will become history soon. Many well-known companies manufacture wireless charging phones. Including Huawei, Samsung, Apple, LG, Sony, Motorola, Oneplus, and google


Samsung always stuns the audience with its superb technology. Samsung galaxy s2series is one of those great inventions by Samsung. It has 9W reverse wireless charging. Furthermore, it has a battery of 5000 mAh, which is non-removable.

Huawei p40 pro

Huawei is another name of advanced technology. The development that Huawei made in a short span is remarkable. Huawei p40 pro has a non-removable 4200 mAh battery.

Nokia 9 PureView

Nokia is old yet one of the most rapid growth companies. It has now established itself to make wireless charging phones. The wireless charger capacity of the Nokia 9 PureView is 4520 mAh. Moreover, it is compatible with Qi products.

IPhone 11series

The iPhone is a brand of the day. Apple launched the iPhone 11 series with a wireless charging feature. The phone has nonremovable3110 mAh battery. This battery is charged by a wireless charger.


LG is manufacturing electronics for more than a decade. LG G8X is the last phone of the G-series. Furthermore, all the pones in the G series were wireless charging based.

Some more wireless charging phones are

  • Google Pixel 4/4XL
  • Samsung Galaxy Note 10/Plus
  • LG V60 ThinQ
  • Xiaomi Mi 9
  • Huawei P30
  • ZTE Axon 10 Pro
  • Samsung Galaxy S10, Galaxy S10+, and Galaxy S10e
  • Samsung Galaxy Note 9
  • Samsung Galaxy S9 and Galaxy S9+
  • LG G7 ThinQ and LG V40 ThinQ
  • Sony Xperia XZ3 and Sony Xperia XZ2
  • Google Pixel 3 and Pixel 3XL
  • Huawei Mate 20 Pro
  • Xiaomi Mi 9 and Mi 9 Explorer


To conclude, wireless technology has taken over the world. In the future, we can predict almost everything around us will be based on wireless charging technology. From home appliances to medical accessories, everything will require wireless charging. However, the current wireless charging technology is just limited to the manufacturing of the wireless charging pad. But in the upcoming time, the standard will rise to other objects. Additionally, the distance of charging will not matter. You will be able to charge devices by sitting at a distance.

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