Power supply connection device

Abstract

The invention discloses a power supply connection device which is used for realizing that power supply equipment can supply power to first equipment and second equipment at the same time without influencing data communication between the first equipment and the second equipment. The power supply connection device provided by the embodiment of the invention comprises a first interface, a second interface, a third interface and a control module, wherein the first interface is connected with first equipment, the second interface is connected with second equipment, and the third interface is connected with the power supply equipment; when the power supply equipment is connected to the third interface; the control module is used for controlling the establishment of a first power supply path from the third interface to the first interface and a second power supply path from the third interface to the second interface; therefore, the power supply device supplies power to the first equipment through the first power supply path when the first equipment is connected to the first interface, and supplies power to the second equipment through the second power supply path when the second equipment is connected to the second interface.

Description

[0001] This application claims the priority of the Chinese patent application filed with the Chinese Patent Office on November 1, 2018, the application number is 201811294881.7, and the invention title is "a VR display method", the entire content of which is incorporated into this application by reference. Technical field [0002] This application relates to the field of circuits, and in particular to a power supply connection device. Background technique [0003] The master device is usually used as a dual role port (DRP) device, which means that it can be used as a source (downstream facing port: DFP), a slave (upstream facing port: UFP), or in a DFP Dynamically switch between UFP and UFP. Typical DRP devices are smart terminals, computers, mobile phones, etc. They can be used as devices to be charged and read data, or as devices to provide power to other devices; slave devices are usually slave UFPs Devices, typical slave devices are VR glasses, etc. They need to get power from...

AI Technical Summary

Problems solved by technology

[0005] However, to add a dedicated charging interface to charge the slave device, it is necessary to add a special charging cable and a charger that adapts to this charging cable, resulting in redundant devices that lead to poor user experience; although the master device does not need to charge the slave device For power supply, but the master device usually only has one external interface, and there is no additional interface for charging after connecting the slave device, resulting in the power consumption of the master device itself, especially in heavy-duty applications, the battery life is significantly reduced

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