公开(公告)号：US10795421B2

公开(公告)日：2020-10-06

申请号：US15669327

申请日：2017-08-04

Applicant: Dell Products L.P.

Inventor： Mohammed Hijazi ,  Merle J. Wood, III ,  Marcin Nowak

IPC: G06F1/26 ,  G06F13/42 ,  G06F1/3296 ,  G06F1/3287

Abstract: An external device and an information handling system may be attached through a single port connection to provide bi-directional transfer or data and power through the port connection. The port connector may allow the information handling system to function as both a power source and a power sink. This allows the information handling system to provide power to certain external devices from an internal battery to avoid data corruption when power to an external device is unexpectedly lost. When AC power is restored to the external device, the information handling system may be reconfigured to not transmit power to the external device and to receive power from the external device to operate the information handling system.

公开(公告)号：US20250028375A1

公开(公告)日：2025-01-23

申请号：US18354521

申请日：2023-07-18

Applicant: DELL PRODUCTS L.P.

Inventor： Merle J. Wood ,  Chin-Jui Liu ,  Ken Nicholas ,  Marcin Nowak

IPC: G06F1/26 ,  G06F13/42

Abstract: An information handling system includes a power supply configured to provide a main power bus and a secondary power bus and a USB-C port. The USB-C port includes a connector that provides an internal power bus, an input selector that couples the internal power bus to the main power bus, and a controller that enables/disables the coupling of the internal power bus to the main power bus by the input selector, and selectively couple the secondary power bus to the internal power bus. The controller further determines that an over-voltage condition is exhibited on the first internal power bus, and, in response to determining the over-voltage condition, disables the first input selector from coupling the first internal power bus to the main power bus and uncouples the secondary power bus from the first internal power bus.

公开(公告)号：US20190041935A1

公开(公告)日：2019-02-07

申请号：US15669327

申请日：2017-08-04

Applicant: Dell Products L.P.

Inventor： Mohammed Hijazi ,  Merle J. Wood, III ,  Marcin Nowak

IPC: G06F1/26 ,  G06F1/32

Abstract: An external device and an information handling system may be attached through a single port connection to provide bi-directional transfer or data and power through the port connection. The port connector may allow the information handling system to function as both a power source and a power sink. This allows the information handling system to provide power to certain external devices from an internal battery to avoid data corruption when power to an external device is unexpectedly lost. When AC power is restored to the external device, the information handling system may be reconfigured to not transmit power to the external device and to receive power from the external device to operate the information handling system.

公开(公告)号：US20190324510A1

公开(公告)日：2019-10-24

申请号：US15959028

申请日：2018-04-20

Applicant: Dell Products L.P.

Inventor： Mohammed Hijazi ,  Geroncio O. Tan ,  Merle J. Wood, III ,  Marcin Nowak

IPC: G06F1/26 ,  G06F1/16

Abstract: An information handling system with multiple power input ports, such as USB ports, capable of receiving power from external power supplies may control power received from the power supplies. A first controller may detect a first power supply coupled to a first power input port of the system and may allow power to flow from the external power supply to the system. Any additional power supplies detected by controllers may be blocked from providing power to the system while the first power supply is providing power.

公开(公告)号：US10802560B2

公开(公告)日：2020-10-13

申请号：US15959028

申请日：2018-04-20

Applicant: Dell Products L.P.

Inventor： Mohammed Hijazi ,  Geroncio O. Tan ,  Merle J. Wood, III ,  Marcin Nowak

IPC: G06F1/26 ,  G06F1/16 ,  H02J7/00

Abstract: An information handling system with multiple power input ports, such as USB ports, capable of receiving power from external power supplies may control power received from the power supplies. A first controller may detect a first power supply coupled to a first power input port of the system and may allow power to flow from the external power supply to the system. Any additional power supplies detected by controllers may be blocked from providing power to the system while the first power supply is providing power.

公开(公告)号：US20240427401A1

公开(公告)日：2024-12-26

申请号：US18337885

申请日：2023-06-20

Applicant: DELL PRODUCTS L.P.

Inventor： Daniel L. Hamlin ,  Frank Quintanilla, III ,  Marcin Nowak ,  Vivek Bhargava

IPC: G06F1/30

Abstract: An information handling system detects whether there is a power loss from an alternating current power source. In response to detecting the power loss from the alternating current power source, the system transmits a power loss signal to a display device that is coupled to the information handling system, and provides auxiliary power to the display device during the power loss.