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公开(公告)号：US10013004B2
公开(公告)日：2018-07-03
申请号：US14523623
申请日：2014-10-24
Applicant: Dell Products L.P.
Inventor： Abey K. Mathew , Shiguo Luo
CPC classification number: G05F1/10 , G06F1/28 , G06F1/30 , H02M3/1584 , H02M2001/0009
Abstract: In accordance with embodiments of the present disclosure, an information handling system may include an information handling resource, a voltage regulator, a non-transitory computer-readable medium, and a controller. The voltage regulator may be coupled to the information handling resource and configured to deliver electrical energy to the information handling resource. The a non-transitory computer-readable medium may have stored thereon curve fit information, the curve fit information including coefficients of a polynomial for approximating a parameter indicative of the power efficiency of the voltage regulator as a function of a measured output current of the voltage regulator. The controller may be coupled to the voltage regulator and configured to receive information indicative of an output power of the voltage regulator and, based on the information indicative of an output power of the voltage regulator and the curve fit information, calculate an input current of the voltage regulator.
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公开(公告)号：US20170300398A1
公开(公告)日：2017-10-19
申请号：US15130643
申请日：2016-04-15
Applicant: Dell Products L.P.
Inventor： Shiguo Luo , Ralph Johnson
CPC classification number: G06F11/3065 , G05F5/00 , G06F1/26 , G06F1/28 , G06F1/305 , G06F11/3024
Abstract: A voltage regulator power reporting offset system includes a monitored power reporting subsystem that determines a monitored power level, offsets the monitored power level using voltage regulator operation offset information to provide a first offset monitored power level, and reports the first offset monitored power level to voltage regulator operation components. A processor power reporting component receives the report of the first offset monitored power level from the monitored power reporting subsystem. A processor power reporting offset subsystem receives the report of the first offset monitored power level from the processor power reporting component, offsets the first offset monitored power level using the processor operation offset information to provide a second offset monitored power level that is different than the first offset monitored power level, and reports the second offset monitored power level to a processing system.
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3.发明申请公开(公告)号：US20170060213A1
公开(公告)日：2017-03-02
申请号：US14841676
申请日：2015-08-31
Applicant: DELL PRODUCTS, L.P.
Inventor： Feng-Yu WU , Tsai-Fu Hung , Shin-Chen Wang , Shiguo Luo , Kejiu Zhang
Abstract: An information handling system (IHS) performs current calibration of a multi-phase VR using leakage current as a reference current. The IHS includes a multi-phase voltage regulator (VR) module coupled to an output port of a power supply unit (PSU). The VR module includes: a multi-phase VR having an integrated power stage that provides pulse width modulation (PWM) functionality for controlling operating phases of VR current in the multi-phase VR; and a digital controller coupled to the multi-phase VR. The controller: enables a known, high accuracy operating phase as loading calibrator for offset training; records a leakage current value as a reference current; enables a first unknown, low accuracy operating phase; determines, for the unknown operating phase, an offset value that provides a specified target current accuracy; updates an offset register for the unknown operating phase with the corresponding offset value; and disables the unknown operating phase.
Abstract translation: 信息处理系统（IHS）使用泄漏电流作为参考电流来执行多相VR的电流校准。 IHS包括耦合到电源单元（PSU）的输出端口的多相电压调节器（VR）模块。 VR模块包括：具有集成功率级的多相VR，其提供用于控制多相VR中的VR电流的工作相位的脉宽调制（PWM）功能; 以及耦合到多相VR的数字控制器。 控制器：使已知的高精度工作阶段成为校正校正器的偏移量; 记录泄漏电流值作为参考电流; 启用第一个未知，低精度的操作阶段; 为未知运行阶段确定提供指定目标电流精度的偏移值; 使用相应的偏移值更新未知运行阶段的偏移量寄存器; 并禁用未知的操作阶段。
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公开(公告)号：US09037884B2
公开(公告)日：2015-05-19
申请号：US14534395
申请日：2014-11-06
Applicant: Dell Products L.P.
Inventor： Johan Rahardjo , John Breen , Shiguo Luo
CPC classification number: G05F1/66 , G05B15/02 , G06F1/3203 , G06F1/3209 , G06F1/3287 , H02M3/1584 , H02M2001/008 , H02M2001/009 , H02M2003/1586
Abstract: In accordance with one embodiment of the present disclosure, a multi-phase voltage regulator may comprise a plurality of phases, each phase configured to supply electrical current to one or more information handling resources electrically coupled to the voltage regulator. A controller may be electrically coupled to the plurality of phases. The controller may designate at least one of the plurality of phases as a first state phase, and designate each of the plurality of phases not designated as a first state phase as a second state phase. The controller may alternate the designation of at least two of the plurality of phases between a first state phase and a second state phase. Each first state phase may be configured to supply a first electrical current regardless of electrical current demand. Each second state phase may be configured to supply a second electrical current based on the current demand.
Abstract translation: 根据本公开的一个实施例，多相电压调节器可以包括多个相位，每个相位被配置为向电压调节器电耦合的一个或多个信息处理资源提供电流。 控制器可以电耦合到多个相。 控制器可以将多个相中的至少一个指定为第一状态相位，并且将未被指定为第一状态相位的多个相位中的每一个指定为第二状态相位。 控制器可以在第一状态相位和第二状态相位之间交替指定多个相位中的至少两个相位。 每个第一状态阶段可以被配置为提供第一电流，而不管电流需求如何。 每个第二状态阶段可以被配置为基于当前需求来提供第二电流。
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公开(公告)号：US20150113294A1
公开(公告)日：2015-04-23
申请号：US14059650
申请日：2013-10-22
Applicant: Dell Products L.P.
Inventor： Kejiu Zhang , Shiguo Luo , Hang Li
CPC classification number: H02J1/00 , G06F1/28 , H02M1/38 , H02M3/158 , H02M3/1584
Abstract: A voltage regulator may comprise a high-side switch and a low-side switch for delivering electrical current to the at least one information handling resource, a high-side driver configured to drive a high-side driving voltage for regulating a first electrical current of the high-side switch, a low-side driver configured to drive a low-side driving voltage for regulating a second electrical current of the low-side switch, and a control circuit configured to operate the at least one voltage regulator in both of a fixed dead time mode and an adaptive dead time mode.
Abstract translation: 电压调节器可以包括用于将电流传送到至少一个信息处理资源的高侧开关和低侧开关，配置成驱动用于调节第一电流的高侧驱动电压的高侧驱动器 高侧开关，低侧驱动器，被配置为驱动用于调节低侧开关的第二电流的低侧驱动电压;以及控制电路，被配置为在所述低侧开关中操作所述至少一个电压调节器， 固定死区模式和自适应死区模式。
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Patent Agency Ranking
公开(公告)号：US20150066234A1
公开(公告)日：2015-03-05
申请号：US14534395
申请日：2014-11-06
Applicant: Dell Products L.P.
Inventor： Johan Rahardjo , John Breen , Shiguo Luo
CPC classification number: G05F1/66 , G05B15/02 , G06F1/3203 , G06F1/3209 , G06F1/3287 , H02M3/1584 , H02M2001/008 , H02M2001/009 , H02M2003/1586
Abstract: In accordance with one embodiment of the present disclosure, a multi-phase voltage regulator may comprise a plurality of phases, each phase configured to supply electrical current to one or more information handling resources electrically coupled to the voltage regulator. A controller may be electrically coupled to the plurality of phases. The controller may designate at least one of the plurality of phases as a first state phase, and designate each of the plurality of phases not designated as a first state phase as a second state phase. The controller may alternate the designation of at least two of the plurality of phases between a first state phase and a second state phase. Each first state phase may be configured to supply a first electrical current regardless of electrical current demand. Each second state phase may be configured to supply a second electrical current based on the current demand.
Abstract translation: 根据本公开的一个实施例，多相电压调节器可以包括多个相位，每个相位被配置为向电压调节器电耦合的一个或多个信息处理资源提供电流。 控制器可以电耦合到多个相。 控制器可以将多个相中的至少一个指定为第一状态相位，并且将未被指定为第一状态相位的多个相位中的每一个指定为第二状态相位。 控制器可以在第一状态相位和第二状态相位之间交替指定多个相位中的至少两个相位。 每个第一状态阶段可以被配置为提供第一电流，而不管电流需求如何。 每个第二状态阶段可以被配置为基于当前需求来提供第二电流。
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公开(公告)号：US10802518B1
公开(公告)日：2020-10-13
申请号：US16512719
申请日：2019-07-16
Applicant: Dell Products, L.P.
Inventor： Shiguo Luo , Wu Feng-Yu
Abstract: Embodiments of a power stage with vertical integration for high-density, low-noise voltage regulators are described. In some embodiments, an Information Handling System (IHS) may include: a processor; and a multi-phase voltage regulator (VR) coupled to the processor, where the multi-phase VR comprises at least one power stage, and where the at least one power stage includes: a High-Side Field-Effect Transistor (HSFET) die mounted on a leadframe; a Low-Side FET (LSFET) die mounted on the leadframe; at least one decoupling capacitor mounted on the leadframe; and a driver circuit mounted on a clip, where the clip overlays at least a portion of the HSFET die and the LSFET die.
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公开(公告)号：US10528109B2
公开(公告)日：2020-01-07
申请号：US14299204
申请日：2014-06-09
Applicant: DELL PRODUCTS, L.P.
Inventor： Shiguo Luo , John Erven Jenne , Ralph H. Johnson, III
IPC: G06F1/28
Abstract: A computer-implemented method enables determining an input power load for a multi voltage rail subsystem in an electronic device such as an information handing system. The method comprises determining a first output power value from a first voltage regulator and a second output power value from a second voltage regulator. A first input power value to the first voltage regulator is determined based at least partially on the first output power value and a second input power value to the second voltage regulator is determined based at least partially on the second output power value. An offset power value is calculated based on the first input power value and the second input power value. A total input power value is calculated based on the offset power value and a third input power value. The total input power value is transmitted to a processor.
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公开(公告)号：US10317966B2
公开(公告)日：2019-06-11
申请号：US15228986
申请日：2016-08-04
Applicant: DELL PRODUCTS, L.P.
Inventor： Ralph H. Johnson , Shiguo Luo
Abstract: A voltage regulation (VR) module of an Information Handling System (IHS) operates a switching direct current to direct current (DC-DC) voltage regulation (VR) power circuit in a constant current mode at a constant current level. The VR module approximates the capacitance value of the output capacitive load at the output terminal of the switching DC-DC VR power circuit based upon a time interval for output voltage to reach a threshold. The VR module then operates the switching DC-DC power circuit in constant output voltage mode using one group of VR operating settings to optimize performance for the capacitance value of the output capacitive load.
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公开(公告)号：US10056754B2
公开(公告)日：2018-08-21
申请号：US15054814
申请日：2016-02-26
Applicant: Dell Products L.P.
Inventor： Kejiu Zhang , Shiguo Luo , Hang Li
CPC classification number: H02J1/00 , G06F1/28 , H02M1/38 , H02M3/158 , H02M3/1584
Abstract: A voltage regulator may comprise a high-side switch and a low-side switch for delivering electrical current to the at least one information handling resource, a high-side driver configured to drive a high-side driving voltage for regulating a first electrical current of the high-side switch, a low-side driver configured to drive a low-side driving voltage for regulating a second electrical current of the low-side switch, and a control circuit configured to operate the at least one voltage regulator in both of a fixed dead time mode and an adaptive dead time mode.
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