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    LED control for reversable power cable
    3.
    发明授权
    LED control for reversable power cable 有权

    公开(公告)号：US11432384B2

    公开(公告)日：2022-08-30

    申请号：US17028324

    申请日：2020-09-22

    Applicant: Dell Products L.P.

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

    IPC: H05B45/32 ,  F21V23/00 ,  F21Y115/10

    Abstract: A disclosed method for LED control for a detachable reversable power cable includes detecting, at a power source, that a first connector at a first end of the power cable is connected to the power source, triggering, at the power source, a first pulse on a first wire of the power cable that turns off a first LED switch coupled to a first LED on the first connector, disabling the first LED, and triggering, at the power source, a second pulse on a second wire of the power cable that drives a second LED on a second connector at a second end of the power cable opposite the first end, the second LED being coupled to a second LED switch that is on. The method further includes, responsive to detecting that the second connector is connected to a power sink, modifying a driver path for the second LED.

    LED CONTROL FOR REVERSABLE POWER CABLE
    4.
    发明申请
    LED CONTROL FOR REVERSABLE POWER CABLE 有权

    公开(公告)号：US20220095429A1

    公开(公告)日：2022-03-24

    申请号：US17028324

    申请日：2020-09-22

    Applicant: Dell Products L.P.

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

    IPC: H05B45/32 ,  F21V23/00

    Abstract: A disclosed method for LED control for a detachable reversable power cable includes detecting, at a power source, that a first connector at a first end of the power cable is connected to the power source, triggering, at the power source, a first pulse on a first wire of the power cable that turns off a first LED switch coupled to a first LED on the first connector, disabling the first LED, and triggering, at the power source, a second pulse on a second wire of the power cable that drives a second LED on a second connector at a second end of the power cable opposite the first end, the second LED being coupled to a second LED switch that is on. The method further includes, responsive to detecting that the second connector is connected to a power sink, modifying a driver path for the second LED.

    Power adapter with switchable output voltage control
    6.
    发明授权
    Power adapter with switchable output voltage control 有权

    公开(公告)号：US10146724B2

    公开(公告)日：2018-12-04

    申请号：US14586555

    申请日：2014-12-30

    Applicant: Dell Products L.P.

    Inventor： Wei-Cheng Yu ,  Tsung-Cheng Liao

    IPC: G06F1/00 ,  G06F13/42 ,  G06F1/26

    Abstract: An example switchable power adapter may include power circuitry and an interface coupled to the power circuitry. An application-specific integrated circuit (ASIC) may be coupled to the power circuitry and the interface. The ASIC may be configured to receive a signal transmitted by an information handling system through the interface; determine whether a delay period within the signal satisfies a delay period condition; and cause the power circuitry to alter an output voltage level provided to the information handling system through the interface. The interface may comprise at least a Universal Serial Bus (USB) receptacle.

    High performance single barrel power connection
    8.
    发明授权
    High performance single barrel power connection 有权

    公开(公告)号：US11799252B2

    公开(公告)日：2023-10-24

    申请号：US17648729

    申请日：2022-01-24

    Applicant: Dell Products L.P.

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

    IPC: H01R24/38 ,  H01R43/20 ,  H01R13/03 ,  H01R103/00

    CPC classification number: H01R24/38 ,  H01R43/20 ,  H01R13/03 ,  H01R2103/00

    Abstract: A high-performance single barrel power connector for receiving electric power may be capable of receiving more than 330 W up to approximately 600 W of power. The V+ pin and V− pin may each be configured with a large plurality of contact points for connecting to a power plug. A connector body retaining the V+ pin and V− pin may configured with openings to expose more of the V+ pin and V− pin to air and allow the V+ pin and V− pin to extend out of the power connector for convective and conductive heat transfer. A shell having a high thermal conductivity may be connected to the V− pin and V− pin and further connected to a bracket for increased heat transfer away from the V+ and V− pins.

    SYSTEM AND METHOD FOR INCREASING POWER SUPPLY PEAK POWER CAPACITY
    9.
    发明申请
    SYSTEM AND METHOD FOR INCREASING POWER SUPPLY PEAK POWER CAPACITY 有权

    公开(公告)号：US20230134151A1

    公开(公告)日：2023-05-04

    申请号：US17513985

    申请日：2021-10-29

    Applicant: Dell Products L.P.

    Inventor： Wu Chi Che ,  Wei-Cheng Yu ,  Edward Douglas Knapton ,  Tsung-Cheng Liao ,  Yung-Chang Chang ,  Ya-Tang Hsieh

    IPC: G06F1/26 ,  G06F13/42 ,  H03K5/156

    Abstract: A method for increasing power supply voltage in an information handling system in a normal mode with a first peak voltage comprises, in response to receiving a request for a higher peak voltage, an embedded controller (EC) receiving information associated with the application including a request for power at a higher peak voltage, a housekeeping IC communicating a signal to a PWM IC to increase voltage supplied to the information handling system to the higher peak voltage, the PWM IC converting from the PSU to the higher peak voltage and starting a timer with a defined time period. If no additional requests for operating at the higher peak voltage are received before the time period expires, the PWM IC communicates a signal that power will stop being supplied at the higher peak voltage, and the information handling system returns to operating in the normal mode at the first peak voltage.

    Managing a light source of a power adapter of an information handling system
    10.
    发明授权
    Managing a light source of a power adapter of an information handling system 有权

    公开(公告)号：US11632845B1

    公开(公告)日：2023-04-18

    申请号：US17447987

    申请日：2021-09-17

    Applicant: Dell Products L.P.

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

    IPC: G06F1/28 ,  H05B47/17

    Abstract: In one embodiment, a method for managing a light source of a power adapter includes: determining that the power adapter is coupled to a power supply; causing the light source to be in a first illuminated state indicating that the power adapter is receiving the power from the power supply; determining that a first instance of a threshold period of inactivity has occurred; causing the light source to be in an unilluminated state; determining that the power adapter is communicably coupled to an information handling system; causing the light source to be in a second illuminated state indicating that the power adapter is providing the power to the information handling system; determining that a second instance of the threshold period of inactivity has occurred; and causing the light source to be in the unilluminated state.

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