How Wireless and Reverse Wireless Charging works in a Smartphone
How does Wireless Charging works? Wireless Charging uses Electromagnetic Induction to wirelessly transmit power between a wireless charger and a device that can be charged wirelessly. Simply, there is one coil in the wireless charger (Transmitter) and another in the smartphone (Receiver). The coil is made up of copper and used as the medium to transfer the power from the charger to the device. When current is passed through the coil, it generates an Alternating Magnetic Field. The smartphone which is to be charged also has a Copper Coil Receiver. This picks up the Alternating Magnetic Field and induces a current which is then passed through a Power Rectifier (inside smartphone) to the Battery of the smartphone to charge it. Wireless Charging requires two coils to be aligned perfectly for the Power transmission. Many companies use Magnets in both their Devices and Chargers for good and secure placement. In simple terms, when you place a smartphone on wireless charging pad; the wir