Systems and methods for port management
Systems and methods for port management are disclosed. In one aspect, the system may consolidate port management functions as well as power conversion, protection features, and signal conditioning circuitry into a single integrated circuit (IC) for a device without a battery. Further exemplary aspects allow for arbitration between ports to handle power supply versus power sink functions. Still further exemplary aspects provide an indication when a weak power source is coupled to the computing device to alert a user that the weak power source may not provide sufficient power for full operation. Such consolidated functionality allows a single form factor to be used for all ports whether the ports are used as a power port or an output port. Further, such consolidated functionality helps mitigate possible damage caused by improper activity.
1. A method of controlling power for a device, comprising:
detecting insertion of a connector into a first Universal Serial Bus (USB) Type-C receptacle;
detecting insertion of a second connector into a second USB Type-C receptacle;
determining if power is available through the first USB Type-C receptacle or if power is being drawn through the first USB Type-C receptacle;
determining if power is available through the second USB Type-C receptacle;
negotiating power levels if power is available;
when power is available through the first USB Type-C receptacle and power is available through the second USB Type-C receptacle, combining power from both of the USB Type-C receptacles;
when power is available from the second USB Type-C receptacle and power is being drawn through the first USB Type-C receptacle, routing at least some power between the USB Type-C receptacles;
determining if other modes are supported through the USB Type-C receptacles wherein any such other mode is selected from the group consisting of: video, audio, and data; and
controlling such other modes if available.
2. The method of claim 1 , further comprising illuminating a light emitting diode (LED) on insertion detection.
3. The method of claim 1 , further comprising illuminating a light emitting diode (LED) when there is a fault.
4. The method of claim 1 , further comprising illuminating a light emitting diode (LED) when there is insufficient power.
5. A device comprising:
a first Universal Serial Bus (USB) Type-C receptacle;
a second USB Type-C receptacle; and
a USB port control integrated circuit (IC), comprising circuitry configured to:
detect insertion of a connector into the first USB Type-C receptacle;
detect insertion of a second connector into the second USB Type-C receptacle;
determine if power is available through the first USB Type-C receptacle or if power is being drawn through the first USB Type-C receptacle;
determine if power is available through the second USB Type-C receptacle;
negotiate power levels if power is available;
when power is available through the first USB Type-C receptacle and power is available through the second USB Type-C receptacle, combine power from both of the USB Type-C receptacles;
when power is available from the second USB Type-C receptacle and power is being drawn through the first USB Type-C receptacle, route at least some power between the USB Type-C receptacles;
determine if other modes are supported through the USB Type-C receptacles wherein any such other mode is selected from the group consisting of:
video, audio, and data; and
control such other modes if available.
6. The device of claim 5 , further comprising a light emitting diode (LED) configured to illuminate on insertion detection.
7. The device of claim 5 , further comprising a light emitting diode (LED) configured to illuminate on detection of a fault.
8. The device of claim 5 , further comprising a light emitting diode (LED) configured to illuminate on detection of insufficient power supply.
9. The device of claim 5 selected from the group consisting of: a set top box; an entertainment unit; a navigation device; a communications device; a fixed location data unit; a mobile location data unit; a global positioning system (GPS) device; a mobile phone; a cellular phone; a smart phone; a session initiation protocol (SIP) phone; a tablet; a phablet; a server; a computer; a portable computer; a mobile computing device; a wearable computing device; a desktop computer; a personal digital assistant (PDA); a monitor; a computer monitor; a television; a tuner; a radio; a satellite radio; a music player; a digital music player; a portable music player; a digital video player; a video player; a digital video disc (DVD) player; a portable digital video player; an automobile; a vehicle component; avionics systems; a drone; and a multicopter.