# US 12,761,711 B2 · Universal serial bus type C cable performance > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,761,711 B2 - Document ID: US12761711B2 - Status: Granted - Kind: B2 - Application number: 18/790,610 - Filed: 2024-07-31 - Published: 2026-02-05 - Granted: 2026-10-13 - Earliest claimed: 2024-07-31 - Assignees: Dell Products L.P. - Applicants: Dell Products L.P. - Inventors: Andrew T. Sultenfuss; Chi Che Wu; Wei-Cheng Yu - Web page: https://patentgrep.com/patent/US12761711B2 ## CPC - G06F 1/266: {Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips} - G06F 1/3206: Monitoring of events, devices or parameters that trigger a change in power modality - G06F 13/385: {for adaptation of a particular data processing system to different peripheral devices} - G06F 2213/0042: Universal serial bus [USB] - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract A power adapter device including a power supply and a power delivery integrated circuit (PD IC). The power supply provides a current to an output terminal of the power adapter device. The PD IC initiates a first voltage across a first resistor of a first information handling system. The PD IC monitors a second voltage at a voltage pin of a power cable. The power cable is connected between the power adapter device and the first information handling system. The PD IC compares the second voltage at the voltage pin to a threshold voltage level. In response to the second voltage being greater than the threshold voltage level, the PD IC performs a power adapter fault operation. ## Claims ### Claim 1 A power adapter device comprising: a power supply to provide a current to an output terminal of the power adapter device; and a power delivery integrated circuit (PD IC) coupled to the power supply, the PD IC to: initiate a first voltage across a first resistor within a first information handling system; monitor a second voltage at a voltage pin of a power cable, wherein the power cable is connected between the power adapter device and the first information handling system, wherein the voltage pin is connected to a first terminal of the first resistor through a Vcc line of the power cable; compare the second voltage at the voltage pin to a threshold voltage level; and in response to the second voltage being greater than the threshold voltage level, perform a power adapter device fault operation. ### Claim 2 (depends on 1) The power adapter device of claim 1, wherein the power adapter device fault operation includes the PD IC to perform a shutdown of the power adapter device. ### Claim 3 (depends on 1) The power adapter device of claim 1, wherein the power adapter device fault operation includes the PD IC to turn on a light emitting diode of the power adapter device. ### Claim 4 (depends on 1) The power adapter device of claim 1, wherein the second voltage increases based on an increase in a resistance along a path of the power cable and the first information handling system. ### Claim 5 (depends on 4) The power adapter device of claim 4, wherein the increase in the resistance is caused by a small break in the power cable. ### Claim 6 (depends on 1) The power adapter device of claim 1, wherein in response to the second voltage being greater than the threshold voltage level, the PD IC further to: save a power adapter fault condition associated with the first information handling system. ### Claim 7 (depends on 1) The power adapter device of claim 1, wherein the PD IC further to: detect that the power cable is plugged into first and second interfaces of the power adapter device; in response to the power cable being plugged into the first and second interfaces, initiate a third voltage across a second resistor of a second PD IC; monitor a fourth voltage at the voltage pin of the power cable; compare the third voltage at the voltage pin to the threshold voltage level; in response to the third voltage not being greater than the threshold voltage level, determine that the power cable is in a good condition; and store the good condition of the power cable. ### Claim 8 (depends on 7) The power adapter device of claim 7, wherein the PD IC further to turn on a light emitting diode of the power adapter device a particular color to indicate that the power cable is in the good condition. ### Claim 9 A method comprising: initiating a voltage across a resistor within an information handling system; monitoring, by a power delivery integrated circuit (PD IC) of a power adapter device, a first voltage at a voltage pin of a power cable, wherein the power cable is connected between the power adapter device and the information handling system, wherein the voltage pin is connected to a first terminal of the first resistor through a Vcc line of the power cable; comparing, by the PD IC, the first voltage at the voltage pin to a threshold voltage level; and in response to the first voltage being greater than the threshold voltage level, performing a power adapter device fault operation. ### Claim 10 (depends on 9) The method of claim 9, wherein the power adapter device fault operation includes performing a shutdown of the power adapter device. ### Claim 11 (depends on 9) The method of claim 9, wherein the power adapter device fault operation includes turning on a light emitting diode of the power adapter device. ### Claim 12 (depends on 9) The method of claim 9, wherein the first voltage increases based on an increase in a resistance along a path of the power cable and the information handling system. ### Claim 13 (depends on 12) The method of claim 12, wherein the increase in the resistance is caused by a small break in the power cable. ### Claim 14 (depends on 9) The method of claim 9, wherein in response to the first voltage being greater than the threshold voltage level, the method further comprises: saving a power adapter fault condition associated with the information handling system. ### Claim 15 (depends on 9) The method of claim 9, further comprising: detecting that the power cable is plugged into first and second interfaces of the power adapter device; initiating a third voltage across a second resistor of a second PD IC; monitoring a fourth voltage at the voltage pin of the power cable, wherein the power cable is connected between the power adapter device and the second information handling system; comparing the third voltage at the voltage pin to the threshold voltage level; in response to the third voltage not being greater than the threshold voltage level, determining that the power cable is in a good condition; and storing the good condition of the power cable. ### Claim 16 (depends on 15) The method of claim 15, wherein the method further comprises: turning on a light emitting diode of the power adapter device a particular color to indicate that the power cable is in the good condition. ### Claim 17 A power adapter device comprising: a power supply to provide a current to an output terminal within the power adapter device; and a power delivery integrated circuit (PD IC) coupled to the power supply, the PD IC to: initiate a first voltage across a first resistor of a first information handling system; monitor a second voltage at a voltage pin of a power cable, wherein the power cable is connected between the power adapter device and the first information handling system, wherein the voltage pin is connected to a first terminal of the first resistor through a Vcc line of the power cable; compare the second voltage at the voltage pin to a threshold voltage level; if the second voltage is greater than the threshold voltage level, then perform a power adapter device fault operation, wherein the power adapter device fault operation includes the PD IC to turn on a light emitting diode of the power adapter device; and if the second voltage is greater than the threshold voltage level, then save a power adapter fault condition associated with the first information handling system. ### Claim 18 (depends on 17) The power adapter device of claim 17, wherein the second voltage increases based on an increase in a resistance along a path of the power cable and the first information handling system. ### Claim 19 (depends on 17) The power adapter device of claim 17, wherein the PD IC further to: detect that the power cable is plugged into first and second interfaces of the power adapter device; in response to the power cable being plugged into the first and second interfaces, initiate a third voltage across a second resistor of a second PD IC; monitor a fourth voltage at the voltage pin of the power cable; compare the third voltage at the voltage pin to the threshold voltage level; in response to the third voltage not being greater than the threshold voltage level, determine that the power cable is in a good condition; and store the good condition of the power cable. ### Claim 20 (depends on 19) The power adapter device of claim 19, wherein the PD IC further to turn on the light emitting diode of the power adapter device a particular color to indicate that the power cable is in the good condition.