How To Judge Whether The Wireless Charger Can Communicate?

Although the wireless charging process is fast, a very important process in the wireless charging process is communication. The wireless charger relies on communication to identify whether the product on the surface of the wireless charger is a normal rechargeable device. This is because ordinary metal objects can also accept electromagnetic induction. At this time, a wireless charger is required to determine whether the device placed on the surface can communicate to determine whether it needs to provide wireless power output. FOD foreign body detection should be the most basic safety function of wireless chargers. Many products say that they are foreign body detection when they put a metal object alone and do not start charging, but this is actually an incomplete foreign body detection.