A charging system, an anti-surge voltage impulse protection method for terminal charging and a power adapter are provided. The charging system includes a power adapter (1) and a terminal (2). The power adapter (1) includes a first rectifying unit (101), a switching unit (102), a transformer (103), a second rectifying unit (104), a first charging interface (105), a second voltage sampling circuit (114), and a control unit (107). A comparator unit (115) and a control unit (107) adjust the duty cycle of the control signal so that the voltage of the third pulsating waveform output by the second rectifier unit (104) meets the charging requirement, and the control switch unit (102) is forced to open when surge voltage impulse occurs according to the comparator unit (115). The terminal (2) includes a second charging interface (201) and a battery (202), and the third pulsating waveform output by the comparator unit (115). When the second charging interface (201) is connected to the first charging interface (105), the second charging interface (201) loads the voltage of the third pulse wave to the battery (202), so that the voltage of the pulse wave output by the power adapter (1) is directly loaded to the battery (202), and the lightning protection can be realized.
【技术实现步骤摘要】
【国外来华专利技术】PCT国内申请,说明书已公开。
【技术保护点】
PCT国内申请,权利要求书已公开。
【技术特征摘要】
【国外来华专利技术】2016.02....
【专利技术属性】
技术研发人员:田晨,张加亮,
申请(专利权)人:OPPO广东移动通信有限公司,
类型:发明
国别省市:广东,44
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