A power supply circuit (10), a power supply device and a control method are provided. 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), an isolation unit (17) and a control unit (16). The power supply circuit (10) removes the liquid electrolytic capacitance of the primary side. It makes the power supply circuit smaller and safer to use. In addition, the control unit (16) can determine the voltage type of the input AC, and set the current limiting value in the current feedback unit (15) according to the voltage type of the AC, which makes the use of the power supply circuit more flexible.
【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
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。