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US 12,699,149 B2Granted
Display panel cable fault detection
AssigneeDell Products L.P.
InventorsIsaac Q. Wang, James L. Petivan, III
Life of this patent
Estimating the term…
Abstract
An information handling system includes first and second printed circuit boards (PCBs) and a cable coupled at a first end to the first PCB and at a second end to the second PCB. The cable includes a power conductor, a ground conductor, and a signal ground conductor. The second PCB includes a power rail coupled to the power conductor, a system ground coupled to the ground conductor, and a short circuit detector coupled between the signal ground conductor and the system ground.
Claims18
An information handling system, comprising:
- a first printed circuit board (PCB);
- a cable coupled at a first end to the first PCB, the cable including a power conductor, a ground conductor, and a signal ground conductor;
- a second PCB coupled to a second end of the cable, the second PCB including a power rail coupled to the power conductor, a system ground coupled to the ground conductor, and a short circuit detector coupled between the signal ground conductor and the system ground;
- and
- a baseboard management controller configured to receive an indication from the short circuit detector when the short circuit detector detects a direct current on the signal ground conductor.
2 more elements
A method, comprising:
- providing, in an information handling system, a first printed circuit board (PCB);
- providing a cable coupled at a first end to the first PCB, the cable including a power conductor, a ground conductor, and a signal ground conductor;
- and
- providing a second PCB coupled to a second end of the cable, the second PCB including a power rail coupled to the power conductor, a system ground coupled to the ground conductor, and a short circuit detector coupled between the signal ground conductor and the system ground;
- providing, in the information handling system, a baseboard management controller;
- and
- receiving, by the baseboard management controller, an indication from the short circuit detector when the short circuit detector detects a direct current on the signal ground conductor.
4 more elements
An information handling system, comprising:
- a first printed circuit board (PCB);
- a cable coupled at a first end to the first PCB, the cable including a power conductor, a ground conductor, and a signal ground conductor;
- and
- a second PCB coupled to a second end of the cable, the second PCB including a power rail coupled to the power conductor, a system ground coupled to the ground conductor, and a short circuit detector coupled between the signal ground conductor and the system ground, wherein the short circuit detector is configured to detect a short circuit between the power conductor and the signal ground conductor;
- a baseboard management controller configured to receive an indication from the short circuit detector when the short circuit detector detects the short circuit;
- wherein the cable includes a coaxial cable having a signal conductor and a shield conductor, and the shield conductor includes the signal ground conductor.
3 more elements
Dependencies are inferred from the claim text.