无线充电器是利用电磁感应原理进行充电的设备，其原理和变压器相似，通过在发送和接收端各安置一个线圈，发送端线圈在电力的作用下向外界发出电磁信号，接收端线圈收到电磁信号并且将电磁信号转变为电流，从而达到无线充电的目的。无线充电技术是一种特殊的供电方式，它不需要电源线，依靠电磁波传播，然后将电磁波能量转化为电能，最终实现无线充电。
CE 认证标准：
新CE-RED已经将无线充电器划分到了EN303 417. 适用的范围如下：
Note: 无线充电器一定要有Radio Communication or Radio Determination功能才属于EN303 417的范畴。如果仅仅是充电功能的话，那么就应该符合EMCD。
FCC 认证标准（KDB680106 D01）:
Wireless power transfer (WPT) devices operating at frequencies above 9 kHz are intentional radiators and are subject to either Part 15 and/or Part 18 of the FCC rules. The specific applicable rule part depends on how the device operates, and if there is communication between the charger and device being charged.
无线充电器的标准可以是part 15 或 part 18，取决于充电设备和接受充电的设备之间是否有通讯。
Intentional radiators transmitting information must be certified under the appropriate Part 15 Rules and will generally require an equipment certification. A WPT device may operate in two different modes: charging and communications. It is possible for the device to be approved under Part 18 for the charging mode and Part 15 for the communications mode, if it can be shown that (1) the device complies with the relevant rule parts; and (2) the functions are independent. Part 18 consumer devices can be authorized using either certification or SDoC, once the appropriate RF exposure evaluation has been completed.
充电模式可以做part 18， 通讯模式可以做part 15. 这两个标准都需要增加RF exposure evaluation。
IC 认证标准：
