SYSTEMS AND METHODS FOR MANAGING USB POWER DELIVERY

摘要

Embodiments of the present disclosure provide systems and/or methods for managing power distribution over a USB topology. In some embodiments, a host device is coupled to an upstream facing port device (UFP device) via a USB compliant connection, and a USB device is coupled to a downstream facing port device (DFP device) via a USB compliant connection. The UFP device and DFP device are connected via a non-USB compliant extension medium. In various embodiments, the UFP device and DFP device may be individually powered by different types of sources (such as external power sources, power distributed over the extension medium, batteries, USB bus power, and/or the like). The UFP device and DFP device cooperate to provide USB power distribution functionality throughout the USB topology despite the presence of the non-USB compliant extension medium.

主权项

1. A system for providing Universal Serial Bus (USB) power delivery across a non-USB extension medium, the system comprising:
an upstream facing port device (UFP device), including:
at least one USB upstream facing port configured to be communicatively coupled to a USB host device; andan extension medium interface configured to be coupled to the non-USB extension medium; a downstream facing port device (DFP device), including:
at least one USB downstream facing port configured to be communicatively coupled to a USB device; andan extension medium interface configured to be coupled to the non-USB extension medium; and a power delivery extension system topology manager (PDESTM) communicatively coupled to the UFP device and the DFP device and configured to manage power delivery policies implemented by the UFP device and the DFP device.