The invention provides a foreign matter detection device and method, a wireless charging system and electronic equipment. The foreign matter detection device is applied to the wireless charging system, and specifically comprises a sweep frequency signal generator used for generating a sweep frequency signal; the detection module comprises a capacitor composed of an inductance coil and a metal frame, the metal frame is annularly arranged on the periphery of the inductance coil, and the inductance coil is connected with the frequency sweeping signal generator through a first switch; the conversion module is connected with the inductance coil through a second switch, is connected with the metal frame through a third switch and is used for converting the current generated by the detection module into detection voltage; and the controller is connected with the conversion module and is used for performing foreign matter detection on the transmitting coil module of the wireless charging system according to the detection voltage. According to the scheme of the invention, different types of foreign matters on the wireless charging system can be monitored in real time.
本公开提供了异物检测装置、方法、无线充电系统及电子设备。其中,异物检测装置,应用于无线充电系统,具体包括:扫频信号发生器,用于产生扫频信号;检测模块,包括由电感线圈和金属框组成的电容器,金属框环设于电感线圈的外围,电感线圈通过第一开关与扫频信号发生器连接;转换模块,通过第二开关与电感线圈连接,以及通过第三开关与金属框连接,用于将检测模块产生的电流转换为检测电压;控制器,与转换模块连接,用于根据检测电压对无线充电系统的发射线圈模块进行异物检测。根据本公开的方案,可以实现对无线充电系统上的不同类别的异物进行实时监测。
Foreign matter detection device and method, wireless charging system and electronic equipment
异物检测装置、方法、无线充电系统及电子设备
2024-09-03
Patent
Electronic Resource
Chinese
European Patent Office | 2024
|European Patent Office | 2020
|Foreign matter detection device and wireless charging transmitting terminal equipment
European Patent Office | 2020
|European Patent Office | 2021
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