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    EXTENDING HOLD-UP TIME OF A POWER SUPPLY UNIT
    2.
    发明公开
    EXTENDING HOLD-UP TIME OF A POWER SUPPLY UNIT 审中-公开

    公开(公告)号：US20240201761A1

    公开(公告)日：2024-06-20

    申请号：US18066559

    申请日：2022-12-15

    申请人： Dell Products L.P.

    发明人： Po-Yun Shih ,  Shih-Chieh Wang ,  Chung-Fu Lai

    IPC分类号： G06F1/26 ,  H02M3/335

    CPC分类号： G06F1/26 ,  H02M3/335

    摘要： A PSU including a primary side, including: a buck capacitor; and a PFC in electrical communication with the buck capacitor; a secondary side, including: a super capacitor; and a converter in electrical communication with an output of the primary side and in electrical communication with the super capacitor, wherein in a first state, the PFC receives energy from a source of energy, and in response: provides the energy to i) charge the buck capacitor based on a SOC of the buck capacitor, ii) charge the super capacitor based on a second SOC of the super capacitor; and iii) an IHS coupled to the PSU, wherein in a second state, the PFC ceases to receive energy from the source of energy and in response: the buck capacitor discharges to provide energy to the IHS; after the buck capacitor is completely discharged, the super capacitor discharges to provide energy to the IHS.

    ACTIVE DROOP CURRENT SHARING AMONG POWER SUPPLY UNITS
    3.
    发明申请
    ACTIVE DROOP CURRENT SHARING AMONG POWER SUPPLY UNITS 有权
    电源单元的主动DROOP电流共享

    公开(公告)号：US20160134108A1

    公开(公告)日：2016-05-12

    申请号：US14534317

    申请日：2014-11-06

    申请人： Dell Products L.P.

    发明人： Tsai-Fu Hung ,  Shih-Chieh Wang ,  Yi-Chiao Hsu ,  Chung-Fu Lai

    IPC分类号： H02J1/04 ,  H02J1/10

    CPC分类号： H02J1/04 ,  G06F1/26 ,  G06F1/28 ,  H02J1/102 ,  Y02P80/11

    摘要： Active droop current sharing among power supply units may regulate output currents of power supply units supplying shared current to a common load. The regulation may employ a combination of droop control and active current control. The shared current may be regulated such that each power supply unit provides a substantially equal share of the total current supplied. A current difference between two power supplies may be regulated to be within a desired maximum threshold for current difference.

    摘要翻译： 电源单元之间的主动下降电流共享可以调节向公共负载提供共享电流的电源单元的输出电流。 该调节可以采用下垂控制和有功电流控制的组合。 可以调节共享电流，使得每个电源单元提供所提供的总电流的基本相等的份额。 可以将两个电源之间的电流差调节到用于电流差的期望的最大阈值内。

    Power supply unit having an extended hold-up time
    4.
    发明授权
    Power supply unit having an extended hold-up time 有权

    公开(公告)号：US10338658B2

    公开(公告)日：2019-07-02

    申请号：US15154450

    申请日：2016-05-13

    申请人： DELL PRODUCTS, L.P.

    发明人： Tsai-Fu Hung ,  Shih-Chieh Wang ,  Kuang-Hao Chou ,  Dennis A. Martin

    IPC分类号： G06F1/30 ,  H02M1/08 ,  H02M1/42 ,  H02M1/44 ,  H02M3/04 ,  H02M1/00 ,  H02M7/06 ,  H02M1/36 ,  H02M3/158

    摘要： A power supply for an information handling system includes a rectifier circuit that is coupled to a power factor correction circuit. The power factor correction circuit includes a bulk capacitor. An extended hold-up capacitor is coupled in parallel to the bulk capacitor, via an electronic switch. The electronic switch has a first terminal coupled to the bulk capacitor and a second terminal coupled to the extended hold-up capacitor. A control circuit is coupled to a third terminal of the electronic switch and controls the operation of the electronic switch. An extended hold-up circuit is coupled to the extended hold-up capacitor and an output terminal of the power factor correction circuit. A digital signal controller is coupled to the extended hold-up circuit. The digital signal controller controls the operation of the extended hold-up circuit, and a DC to DC converter is coupled to the extended hold-up circuit.

    Method and system for power supply unit current sharing
    5.
    发明授权
    Method and system for power supply unit current sharing 有权

    公开(公告)号：US09760139B2

    公开(公告)日：2017-09-12

    申请号：US14677882

    申请日：2015-04-02

    申请人： Dell Products, L.P.

    发明人： Yung Fa Chueh ,  Tsai-Fu Hung ,  Chung-Fu Lai ,  Shih-Chieh Wang

    IPC分类号： G06F1/26 ,  H02M1/00 ,  G06F11/30

    CPC分类号： G06F1/263 ,  G06F1/26 ,  G06F11/3058 ,  H02M2001/0032 ,  H02M2001/0045

    摘要： Methods and systems for power supply unit (PSU) current sharing may include an In-System Power Monitoring and Management (IPMM) module monitoring an output value of a first power supply unit in a multi-power supply system. In an embodiment, the IPMM module may monitor an output value of a second power supply unit in the multi-power supply system. Additionally, the IPMM module may monitor an output performance parameter for the multi-power supply system. Furthermore, the IPMM module may adjust a setting of at least one of the first power supply unit and the second power supply unit for optimization of a current sharing performance parameter of the multi-power supply system. In various embodiments, the setting may include a droop voltage value, a distribution impedance value, or a set voltage increment value of at least one of the first power supply unit and the second power supply unit.

    METHOD AND SYSTEM FOR POWER SUPPLY UNIT CURRENT SHARING
    6.
    发明申请
    METHOD AND SYSTEM FOR POWER SUPPLY UNIT CURRENT SHARING 有权
    电源单元电流共享方法与系统

    公开(公告)号：US20160291660A1

    公开(公告)日：2016-10-06

    申请号：US14677882

    申请日：2015-04-02

    申请人： Dell Products, L.P.

    发明人： Yung Fa Chueh ,  Tsai-Fu Hung ,  Chung-Fu Lai ,  Shih-Chieh Wang

    IPC分类号： G06F1/26

    CPC分类号： G06F1/263 ,  G06F1/26 ,  G06F11/3058 ,  H02M2001/0032 ,  H02M2001/0045

    摘要： Methods and systems for power supply unit (PSU) current sharing may include an In-System Power Monitoring and Management (IPMM) module monitoring an output value of a first power supply unit in a multi-power supply system. In an embodiment, the IPMM module may monitor an output value of a second power supply unit in the multi-power supply system. Additionally, the IPMM module may monitor an output performance parameter for the multi-power supply system. Furthermore, the IPMM module may adjust a setting of at least one of the first power supply unit and the second power supply unit for optimization of a current sharing performance parameter of the multi-power supply system. In various embodiments, the setting may include a droop voltage value, a distribution impedance value, or a set voltage increment value of at least one of the first power supply unit and the second power supply unit.

    摘要翻译： 供电单元（PSU）电流共享的方法和系统可以包括在多电源系统中监视第一电源单元的输出值的在系统电力监控和管理（IPMM）模块。 在一个实施例中，IPMM模块可以监视多电源系统中的第二电源单元的输出值。 此外，IPMM模块可以监视多电源系统的输出性能参数。 此外，IPMM模块可以调整第一电源单元和第二电源单元中的至少一个的设置，以优化多电源系统的电流共享性能参数。 在各种实施例中，该设置可以包括第一电源单元和第二电源单元中的至少一个的下垂电压值，分布阻抗值或设定电压增量值。

    Extending hold-up time of a power supply unit
    8.
    发明授权
    Extending hold-up time of a power supply unit 有权

    公开(公告)号：US12026027B1

    公开(公告)日：2024-07-02

    申请号：US18066559

    申请日：2022-12-15

    申请人： Dell Products L.P.

    发明人： Po-Yun Shih ,  Shih-Chieh Wang ,  Chung-Fu Lai

    IPC分类号： G06F1/26

    CPC分类号： G06F1/26

    摘要： A PSU including a primary side, including: a buck capacitor; and a PFC in electrical communication with the buck capacitor; a secondary side, including: a super capacitor; and a converter in electrical communication with an output of the primary side and in electrical communication with the super capacitor, wherein in a first state, the PFC receives energy from a source of energy, and in response: provides the energy to i) charge the buck capacitor based on a SOC of the buck capacitor, ii) charge the super capacitor based on a second SOC of the super capacitor; and iii) an IHS coupled to the PSU, wherein in a second state, the PFC ceases to receive energy from the source of energy and in response: the buck capacitor discharges to provide energy to the IHS; after the buck capacitor is completely discharged, the super capacitor discharges to provide energy to the IHS.