We have seen a lot of high-end smartphones this year coming out with inbuilt Wireless charging feature that eliminates the need for a physical connector like MicroUSB data cable. The wireless charging technique is slowly but certainly replacing traditional wired cables since the former provides a number of advantages that includes efficiency, convenience, cost, and safety.
Some of us might wonder what is wireless charging and how does it work. For that particular reason I will be explaining you everything related to it, and when you use it next time you will have an idea on what you are dealing with. So, let’s get started.
As the name suggests, wireless charging enables you to charge your smartphone without the need of tangled wired cables. It is basically the transmission of an electrical current from a power source to a receiving device without the use of a physical connection. When the electrical current is received by the receiving device, it charges the battery just like the cable. But the main question is how do the current flow wirelessly?
Transmitter Circuit: Wireless charging is based on the principle of Electromagnetic field, where the energy is transferred from one station to another station wirelessly. Firstly, the main supply Voltage is converted to high-frequency AC current which is sent to the transmitter coil. The coil converts AC current into an alternating electromagnetic field.
Receiver Circuit: On the receiver side, the receiving coil receives the magnetic field and converts it into Alternating Current. This current is converted into direct current (DC), which can then be used to charge the battery. Using this process, Power can be transferred safely over the air. The range of the transmission can be improved by adding larger coils on the transmitter side.
All the latest high-end phones support wireless charging (receiver side). The transmitter side, known as wireless charging pads, should be bought separately and will cost around Rs.500 to Rs.5000 depending on the manufacturer, quality, and features. If you are looking for a good wireless charger, we recommend the eBoot 360 and the TYLY Vu.
If your smartphone doesn’t support wireless charging, you can add Qi wireless charging to any Android smartphone for under $10 with the DigiYes Micro USB Wireless Charging Receiver Module. You just need to plug it into the micro USB port on your phone, wrap it around the back and hold it in place with your favorite smartphone case.