Connector for electronic devices and power supply control method applied to the connector

Abstract

Embodiments of the present disclosure provide a connector. The connector includes first to third interfaces, a switch circuit, a power supply device control circuit, and an interface control circuit. The first to third interfaces are configured to connect a host device, an upstream facing port (UFP) device and a power supply device, respectively. The switch circuit is connected to the first interface, the second interface, the third interface, and the interface control circuit. The power supply device control circuit is connected to the third interface and the interface control circuit. In response to detecting that a power supply device is plugged into the third interface, the power supply device control circuit detects a supply output power of the power supply device and determines a power supply control command based on the supply output power, a required charging power for the host device, and an operating power of the slave device. The interface control circuit performs on-off control on the switch circuit according to the power supply control command, to control power supply from the power supply device to the host device and the slave device. Using the connector, efficient power supply from the external power supply device to the host device and the slave device can be implemented.