公开(公告)号：US20160126721A1

公开(公告)日：2016-05-05

申请号：US14856572

申请日：2015-09-17

Applicant: ASUSTeK COMPUTER INC.

Inventor： Xiao-Feng ZHOU ,  Wei HAN ,  Ching-Ji LIANG

IPC: H02H3/20

CPC classification number: H02H9/001 ,  H02H3/207

Abstract: An electronic device and a power protection method are provided. The electronic device includes a transfer port, a switch, a first detecting unit and a second detecting unit. The transfer port provides a driving voltage to an external device. The switch is coupled between the transfer port and a supply power source, and the switch is selectively turned off according to at least one of a first control signal and a second control signal. The first detecting unit generates the first control signal when a voltage drop of the driving voltage exceeds a threshold voltage. The second detecting unit generates a sampling voltage by detecting the driving voltage and generates the second control signal when the sampling voltage is lower than a first reference voltage. The electronic device can provide a power protection when an external device is plugged in/out the transfer port.

Abstract translation: 提供电子设备和电源保护方法。 电子设备包括传送端口，开关，第一检测单元和第二检测单元。 传输端口向外部设备提供驱动电压。 开关耦合在传送端口和电源之间，并且根据第一控制信号和第二控制信号中的至少一个有选择地关闭开关。 当驱动电压的电压降超过阈值电压时，第一检测单元产生第一控制信号。 第二检测单元通过检测驱动电压产生采样电压，并且当采样电压低于第一参考电压时产生第二控制信号。 当外部设备插入/拔出传输端口时，电子设备可以提供电源保护。