公开(公告)号：US12107423B2

公开(公告)日：2024-10-01

申请号：US17661113

申请日：2022-04-28

Applicant: Dell Products L.P.

Inventor： Wei-Cheng Yu ,  Merle Jackson Wood ,  Tsung-Cheng Liao ,  Chin-Jui Liu ,  Andrew Thomas Sultenfuss ,  Chi Che Wu

IPC: G06F1/18 ,  G06F1/26 ,  H02J3/18

CPC classification number: H02J3/18 ,  G06F1/188 ,  G06F1/26

Abstract: A method and system for supplying power at a voltage selected from a plurality of voltages. Power is initially received at a first voltage. Embodiments communicate with an AC adapter to get device identification and see if the AC adapter supports other voltages. If so, embodiments communicate with the AC adapter to get more information about the adapter and identify what voltages the adapter is capable of providing. If one of the voltages would allow an information handling system to operate more efficiently, embodiments negotiate a power supply contract to operate at a second voltage. When the information handling system powers down, the system resets to operation at the initial voltage.

公开(公告)号：US11789511B2

公开(公告)日：2023-10-17

申请号：US17451968

申请日：2021-10-22

Applicant: Dell Products L.P.

Inventor： Yong-Teng Lin ,  Jui-Chin Fang ,  Chi Che Wu ,  Wei Cheng Yu ,  Geroncio Tan

IPC: G06F1/28 ,  H02J7/00 ,  G01R19/165 ,  G01R19/10

CPC classification number: G06F1/28 ,  G01R19/10 ,  G01R19/1659 ,  H02J7/00032 ,  H02J7/0047 ,  H02J7/00712

Abstract: In one or more embodiments, one or more systems, one or more methods, and/or one or more processes may: send, by a battery management unit (BMU) of a battery of an information handling system (IHS), a request for a first amount of current to an embedded controller (EC) of the IHS; provide, by the EC, the request for the first amount of current to a charger of the IHS; receive, by the charger, the request; provide, by the charger, a second amount of current based at least on the request and based at least on a voltage measurement across a resistor of the charger; determine, by the BMU, a measurement of the second amount of current; provide, by the BMU, the measurement to the EC; determine, by the EC, that the measurement does not match the first amount of current; and provide, by the EC, an alert.

公开(公告)号：US20230268699A1

公开(公告)日：2023-08-24

申请号：US18123189

申请日：2023-03-17

Applicant: DELL PRODUCTS L.P.

Inventor： Wei Cheng Yu ,  Andrew Sultenfuss ,  Chi Che Wu ,  Tsung-Cheng Liao

IPC: H01R24/38 ,  G06F1/26 ,  H01R13/428 ,  H01R31/06 ,  H01R43/20

CPC classification number: H01R24/38 ,  G06F1/26 ,  H01R13/428 ,  H01R31/065 ,  H01R43/20 ,  H01R2103/00

Abstract: The present disclosure provides embodiments of direct current (DC) power connectors and methods to manufacture the same. More specifically, the present disclosure provides a connector plug with improved power capacity and structural rigidity. The connector plug includes an inner body and an outer body coupled to transmit power through the DC power connector, wherein the inner body is concentrically arranged within the outer body, and an insulating barrel that is coupled between the inner body and the outer body to electrically isolate the inner body from the outer body. The inner body and outer body comprise a base metal or metal alloy having an electrical conductivity ranging between 30% International Annealed Copper Standard (IACS) and greater than or equal to 99% IACS. In addition, the inner body, outer body and insulating barrel comprise an interlocking feature, which increases the structural rigidity of the connector plug and prevents disassembly when the inner body, outer body and insulated barrel are assembled together.

公开(公告)号：US20230131113A1

公开(公告)日：2023-04-27

申请号：US17451968

申请日：2021-10-22

Applicant: Dell Products L.P.

Inventor： Yong-Teng Lin ,  Jui-Chin Fang ,  Chi Che Wu ,  Wei Cheng Yu ,  Geroncio Tan

IPC: G06F1/28 ,  H02J7/00 ,  G01R19/10 ,  G01R19/165

Abstract: In one or more embodiments, one or more systems, one or more methods, and/or one or more processes may: send, by a battery management unit (BMU) of a battery of an information handling system (IHS), a request for a first amount of current to an embedded controller (EC) of the IHS; provide, by the EC, the request for the first amount of current to a charger of the IHS; receive, by the charger, the request; provide, by the charger, a second amount of current based at least on the request and based at least on a voltage measurement across a resistor of the charger; determine, by the BMU, a measurement of the second amount of current; provide, by the BMU, the measurement to the EC; determine, by the EC, that the measurement does not match the first amount of current; and provide, by the EC, an alert.

公开(公告)号：US20230128943A1

公开(公告)日：2023-04-27

申请号：US17510445

申请日：2021-10-26

Applicant: Dell Products L.P.

Inventor： Wei Cheng Yu ,  Merle Jackson Wood, III ,  Geroncio Ong Tan ,  Chi Che Wu

IPC: H02H3/20 ,  H02H1/00 ,  G01R31/40

Abstract: Described are computer implemented methods, a system and a power supply amplifier (PSA) that supports compliance testing of the PSA. The power supplies power to a powered device/information handling system. A voltage of synchronous rectifier (SR) gate is measured and compared to a calculated sense voltage at a sense resistor of the PSA. If the sense voltage is zero, received current of the PSA bypasses a first blocking MOSFET and a second blocking MOSFET for over voltage protection. If the sense voltage is not zero, the received current passes through the first blocking MOSFET.

公开(公告)号：US11442519B1

公开(公告)日：2022-09-13

申请号：US17182779

申请日：2021-02-23

Applicant: DELL PRODUCTS L.P.

Inventor： Wei Cheng Yu ,  Geroncio O. Tan ,  Merle Wood, III ,  Chi Che Wu ,  Tsung-Cheng Liao ,  Wen-Yung Chang

IPC: G06F1/26 ,  H02M3/335 ,  H02M1/32 ,  G05B19/042 ,  G06F13/42 ,  G06F1/28

Abstract: The present disclosure provides various embodiments of an external power supply and methods to enhance the output power delivered by an external power supply to a power consuming load. As described in more detail below, the embodiments disclosed herein enable an external power supply to deliver a higher than maximum output power for short periods of time when ambient temperatures within the external power supply are low. As the ambient temperature increases, the embodiments disclosed herein throttle (or incrementally reduce) the output power delivered by the external power supply until the maximum output power specified for the power supply is reached. Although not strictly limited to such, the external power supply may be a Universal Serial Bus (USB)-enabled AC/DC adapter, and more specifically, a USB Power Deliver (USB-PD) AC/DC adapter, in some embodiments.