Wireless charging lets you charge your smartphone’s battery without a cable and plug.
Most wireless charging devices take the form of a special pad or surface on which you place your phone to allow it to charge.
Newer smartphones tend to have a wireless charging receiver built in, while others need a separate adapter or receiver to be compatible.
HOW DOES IT WORK?
- Inside your smartphone is a receiver induction coil made of copper.
- The wireless charger contains a copper transmitter coil.
- When you place your phone on the charger, the transmitter coil generates an electromagnetic field that the receiver converts to electricity for the phone battery. This process is known as electromagnetic induction.
Because the copper receiver and transmitter coils are small, wireless charging only works over very short distances. Household products such as electric toothbrushes and shaving razors have been using this inductive charging technology for many years already.
Obviously, the system isn’t completely wireless as you still have to plug the charger into the mains or a USB port. It just means you never have to connect a charging cable to your smartphone.
Post time: Nov-24-2020