Advantages: It is easy to use. If you have your own office or study room, it feels great to put it on and charge it at any time. Moreover, because both WPC and PMA charging protocols are supported, you don’t have to buy an official wireless charger. You can use it if you buy one for dozens of yuan on Taobao. There are many choices.
Disadvantage, charging is a bit slow because wireless charging conversion will cause losses. A little hot. I can no longer happily play with my phone while charging.
Wireless charger refers to a device that uses the principle of electromagnetic wave induction for charging. The principle is similar to a transformer. There is a coil at each of the transmitting and receiving ends. The transmitting end coil is connected to a wired power supply to generate an electromagnetic signal. The receiving end coil senses the electromagnetic signal from the transmitting end and generates current to charge the battery. During the charging process, there is a lot of radiation and the charging efficiency is not high.
The difference between wireless chargers and wired chargers:
Difference 1, charging method: The wireless charger must first load the iPhone into the charging protective case, and then place the protective case on On the induction base, then connect the induction base to the power plug, and then plug in the power plug.
Difference two, connecting peripherals: When the iPhone is in wireless charging mode, the first step is to take out the iPhone loaded into the charging protective case, the second step is to connect the Mini USB, and finally the Mini USB is connected to the peripheral device. When charging the iPhone on the power adapter, just remove the USB from the adapter and connect the peripherals.
Difference 3: Convenience: When the phone is charging, a call comes in but it is inconvenient to answer it in some specific situations. This is when the convenience of wireless chargers comes into play. Just pick up the charging case and move it to any place convenient for users to answer calls. If it is a wired charger, you need to unplug the data cable. To connect and charge, you need to plug in the data cable again. At this time, the wireless charger only needs to place the phone on the sensor to charge.
Difference four, charging efficiency: when the charging time is the same, the power after charging by a commonly used wired battery charger is 93%, and the power after charging by a wireless charger is 88%. Obviously, there is still a gap in the charging efficiency of wireless chargers, and there is room for further improvement in technology.