As people pursue the design of portable, thin, flat, and compact electronic devices, the number of interfaces on electronic devices is limited, resulting in the electronic device being unable to connect to multiple external electronic devices. Take Apple's latest MacBook as an example. The left side of the fuselage is the headphone jack and dual microphones, and the right side is the UBS Type-C interface. When using MacBook with other devices, you need to use a converter, and the connection is one-to-one. When the MacBook needs to connect multiple external devices, the number of interfaces obviously cannot meet the usage needs. Moreover, the MacBook cannot be charged when it is connected to an external device. To charge a MacBook, the connected external device must be unplugged, which brings great inconvenience to users.
Based on this, it is necessary to provide a charging hub that can improve the scalability and ease of use of the device.
A charging hub, including: a first USB C-type interface for electrical connection with a master device; a second USB C-type interface for electrical connection with a power adapter or a slave device; an output interface for electrical connection with a slave device The device is electrically connected; the hub control circuit is electrically connected to the first USB Type-C interface, the second USB Type-C interface and the output interface respectively, and is used to control the master device and the slave device. Data communication; a power management circuit, electrically connected to the first USB Type C interface, the second USB Type C interface and the output interface respectively, for controlling the power adapter to supply power to the master device and the slave device. charging the device, or controlling the master device to charge the slave device; and a master control circuit, electrically connected to the hub control circuit and the power management circuit respectively, for controlling the hub control circuit and The working state of the power management circuit controls the working mode of the charging hub.