HUB DEVICE FOR UNIVERSAL SERIAL BUS AND POWER MANAGEMENT METHOD THEREOF

摘要

A hub apparatus for USB and a power management method thereof are provided. The hub apparatus includes at least one USB-PD port, at least one USB port and a control unit. The control unit detects whether the USB-PD port is connected to a first external device and whether the USB port is contacted to a second external device respectively. When the at least one first external device complies with a USB-PD interface and a connecting situation of the at least one first external device and the at least one second external device are changed, the control unit determines a required power supply determination value according to the connecting situation of the at least one first external device and the at least one second external device, and accordingly, the control unit communicates with the first external device to set a power transmission profile of the at least one USB-PD port.

主权项

1. A hub device for universal serial bus (USB), comprising:
at least one USB-power delivery (PD) port; at least one USB port; and a control unit, coupled to the at least one USB-PD port and the at least one USB port, wherein the control unit detects whether the at least one USB-PD port is connected to a first external device and whether the at least one USB port is connected to a second external device, when the first external device is complied with a USB-PD interface and a connecting situation of the first external device and the second external device is changed, the control unit determines a required power supply determination value according to the connecting situation of the first external device and the second external device, and communicates with the first external device to set a power transmission profile of the at least one USB-PD port according to the power supply determination value.