Hub device and power supply method thereof
A hub device and a power supply method thereof are provided. The hub device includes a power input port, first and second power output ports, a power management circuit and a controller. When first and second electronic devices are respectively connected to the first and second power output ports, the controller determines an input electric power from at least one default supply power of the power adapter based on first operating power information of the first electronic device and second operating power information of the second electronic device, so as to control the power adapter to provide the input electric power to the power input port. The power management circuit receives the input electric power to generate first and second operating power, so as to output the first operating power to the first power output port and output the second operating power to the second power output port.
1. A hub device, comprising:
a power input port, connected to a power adapter;
a first power output port and a second power output port;
a power management circuit, coupled to the power input port, the first power output port, and the second power output port; and
a controller, coupled to the power input port, the first power output port, the second power output port, and the power management circuit,
wherein when a first electronic device and a second electronic device are respectively connected to the first power output port and the second power output port, the controller determines an input electric power from at least one default supply power of the power adapter based on first operating power information of the first electronic device and second operating power information of the second electronic device, and the controller controls the power adapter to provide the input electric power to the power input port,
wherein the power management circuit receives the input electric power to generate a first operating power and a second operating power, and the power management circuit outputs the first operating power to the first power output port and outputs the second operating power to the second power output port,
wherein the power management circuit comprises:
a power converting circuit, coupled to the controller and the power input port, wherein the power converting circuit is configured to receive the input electric power and to generate at least one output electric power; and
a switch device, coupled to the controller, the power converting circuit, the first power output port, and the second power output port, wherein the switch device is configured to receive the at least one output electric power,
wherein the controller determines a voltage value of the at least one output electric power based on the first operating power information and the second operating power information to control the power converting circuit to generate the at least one output electric power, and
wherein the controller controls a switching state of the switch device based on the first operating power information and the second operating power information, such that the switch device outputs the first operating power to the first power output port and outputs the second operating power to the second power output port based on the at least one output electric power.
2. The hub device as claimed in claim 1 , wherein a voltage value of the first operating power is different from a voltage value of the second operating power.
3. The hub device as claimed in claim 1 , wherein the controller controls the power converting circuit to convert the input electric power and generate the at least one output electric power, wherein a voltage value of one of the at least one output electric power is different from a voltage value of the input electric power.
4. The hub device as claimed in claim 1 , further comprising a detecting circuit coupled between the switch device, and the first power output port and the second power output port, wherein the controller is configured to detect whether the first operating power and the second operating power output by the switch device are normal by the detecting circuit,
wherein when the first operating power or the second operating power output by the switch device is abnormal, the controller controls the switch device stop outputting the first operating power or the second operating power.
5. The hub device as claimed in claim 1 , wherein the controller obtains the at least one default supply power of the power adapter via the power input port.
6. A power supply method, suitable for a hub device comprising a power input port, a first power output port, and a second power output port, comprising:
obtaining at least one default supply power of a power adapter, wherein the power adapter is connected to the power input port;
determining an input electric power from the at least one default supply power of the power adapter based on first operating power information of a first electronic device and second operating power information of a second electronic device when the first electronic device and the second electronic device are respectively connected to the first power output port and the second power output port;
controlling the power adapter to provide the input electric power to the power input port; and
receiving the input electric power to generate a first operating power and a second operating power to output the first operating power to the first power output port and output the second operating power to the second power output port,
wherein the step of generating the first operating power and the second operating power based on the input electric power to output the first operating power to the first power output port and output the second operating power to the second power output port further comprises:
determining a voltage value of the at least one output electric power based on the first operating power information and the second operating power information to control a power converting circuit to generate the at least one output electric power; and
controlling a switching state of a switch device based on the first operating power information and the second operating power information, such that the switch device outputs the first operating power to the first power output port and outputs the second operating power to the second power output port based on the at least one output electric power.
7. The power supply method as claimed in claim 6 , further comprising:
obtaining the first operating power information of the first electronic device and the second operating power information of the second electronic device when the first electronic device and the second electronic device are respectively connected to the first power output port and the second power output port.
8. The power supply method as claimed in claim 6 , wherein a voltage value of the first operating power is different from a voltage value of the second operating power.
9. The power supply method as claimed in claim 6 , wherein the step of determining the voltage value of the at least one output electric power based on the first operating power information and the second operating power information to generate the at least one output electric power comprises:
controlling the power converting circuit to convert the input electric power and thereby generate the at least one output electric power, wherein a voltage value of one of the at least one output electric power is different from a voltage value of the input electric power.
10. The power supply method as claimed in claim 6 , wherein the step of outputting the first operating power and the second operating power based on the input electric power, the first operating power information, and the second operating power information further comprises:
determining whether the first operating power and the second operating power output by the switch device are normal by a detecting circuit; and
controlling the switch device to stop outputting the first operating power or the second operating power by a controller when the first operating power or the second operating power output by the switch device is abnormal.
11. The power supply method as claimed in claim 6 , wherein the step of determining the input electric power from the at least one default supply power of the power adapter based on the first operating power information and the second operating power information further comprises:
calculating a currently consumed power based on the first operating power information and the second operating power information, and determining the input electric power from the at least one default supply power based on the currently consumed power, wherein a power of the input electric power is higher than or equal to the currently consumed power.
12. The power supply method as claimed in claim 11 , further comprising:
disconnecting a connection between the second electronic device and the second power output port when the power of the at least one default supply power is all lower than the currently consumed power.
13. The hub device as claimed in claim 1 , wherein the controller obtains the first operating power information of the first electronic device and the second operating power information of the second electronic device via the first power output port and the second power output port.
14. The hub device as claimed in claim 1 , wherein the controller calculates a currently consumed power based on the first operating power information and the second operating power information, and determines the input electric power from the at least one default supply power based on the currently consumed power, wherein a power of the input electric power is higher than or equal to the currently consumed power.
15. The hub device as claimed in claim 14 , wherein when the power of the at least one default supply power is all lower than the currently consumed power, the controller disconnects a connection between the second electronic device and the second power output port.