Before we are going to know about wireless charging technology, first we should know about the meaning of wireless. What does it mean? Wireless simply means transmitting some forms of energy from one device to another device without using wire or cable. For example, Radio, which is used to transfer information and also used for entertainment purpose, which can be impossible and impractical to implement this with the use of wires. Similarly here we are going to know about wireless charging, which means we can charge our cell phones without using the wired electric power connections.
What is Wireless Charging Technology?
Wireless charging is the way to charge our mobile devices by placing it on the wireless charging pads which is directly connected to the wall socket which uses an electromagnetic field to transfer energy between two objects.
Who and when invented?
Nikola Tesla invented the wireless power transmission in 1891.
How does Wireless Charging Work?
Firstly, plug in the charging pad and just place your mobile on it, then the main voltage is converted into high alternating current. An alternating current is passed through the transmitter coil which generates a magnetic field in the transmitter circuit which induces a voltage in the receiver coil. The current flow in the receiver coil is converted into direct current by the receiver circuit, which can then be used to charge the mobile battery.
Is Wireless Charging Harmful?
No, wireless charging technology is neither harmful for mobile batteries, nor it is harmful for human body. When a mobile device is plugged into a wall charger, it produces a heat while charging, which is harmful for the battery which degrades it’s performance. However, wireless charger at no time produces heat, and the device battery never gets warm. Like other wired charging devices Wireless charger are not emitted harmful radiation because the small amount of electromagnetic radiation is emitted, which is harmless, which does not affect your body.
Advantages
1- The main advantage is that it removes power cords that is it easily transfer the power to devices without using physical wire connection.
2- It is more durable as there is no physical connection, there is less wear and tear on the socket of the devices and the attaching cable.
3- It is more eco-friendly as there is no electronic waste i.e it saves power, and it is non-radioactive.
4- It eliminates sparks associated with wire contacts.
Disadvantages
1- It is very slow in charging the gadgets. It takes longer time to charge when supplied the same amount of power as compared to wired charging.
2- It is more expensive as it uses coils in both charger and mobile devices, which increases the cost of manufacturing.
Wireless charging technology is the future of new-generation charging. Now it is not using widely, but one day every mobile has the wireless charging system.