The utility model relates to a power supply circuit (10), a power supply device and a control method. The power supply circuit (10) includes a primary rectifier unit (11), a modulation unit (12), a transformer (13), a secondary rectifier filter unit (14), a current feedback unit (15) and a current acquisition control unit (16). The power supply circuit (10) removes the liquid electrolytic capacitance of the primary side, and the current value of the output current of the power supply circuit (10) changes periodically. The power supply circuit (10) can determine when the output current is at its peak value according to the feedback voltage output by the current feedback unit (15), so that the power supply circuit (10) can manage and control the peak value of the output current.
【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】PCT国内申请,...
【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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