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公开(公告)号：US09735690B2
公开(公告)日：2017-08-15
申请号：US14879146
申请日：2015-10-09
Applicant: Dell Products, L.P.
Inventor： Tsai-Fu Hung , Yu-Hung Lai , Shih-Chieh Wang , Feng-Yu Wu
CPC classification number: H02M3/33546 , H02M1/14 , H02M1/42 , H02M3/3376 , H02M2001/0058 , Y02B70/1433 , Y02B70/1491
Abstract: Systems and methods for reducing the line frequency ripple in a resonant converter are described. In some embodiments, a power supply includes a switching network; an LLC resonant tank coupled to the switching network; a rectifier coupled to the LLC resonant tank; and a control circuit coupled to the switching network and to the rectifier, where the control circuit is configured to modify an operating frequency of the switching network to reduce a line frequency ripple at an output of the rectifier.
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公开(公告)号：US20170033677A1
公开(公告)日：2017-02-02
申请号：US14810694
申请日：2015-07-28
Applicant: Dell Products L.P.
Inventor： Feng-Yu Wu , Tsai-Fu Hung
CPC classification number: H02M1/08 , H02M3/07 , H02M3/158 , H02M3/1588
Abstract: Systems and methods for operating a switching converter are disclosed. The switching converter includes a high-side transistor coupled between a voltage input and a switching node and a low-side transistor coupled between the switching node and ground. The switching converter also includes a high-side driver coupled to drive a gate of the high-side transistor, a charge pump coupled to the high-side driver, and a bootstrap circuit, which includes a pass transistor coupled between the charge pump and the switching node, and a pull-down transistor coupled between the charge pump and ground.
Abstract translation: 公开了用于操作开关转换器的系统和方法。 开关转换器包括耦合在电压输入和开关节点之间的高侧晶体管和耦合在开关节点和地之间的低侧晶体管。 开关转换器还包括耦合以驱动高侧晶体管的栅极的高侧驱动器，耦合到高侧驱动器的电荷泵和自举电路，其包括耦合在电荷泵和电荷泵之间的通过晶体管 开关节点和耦合在电荷泵和地之间的下拉晶体管。
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公开(公告)号：US20220308607A1
公开(公告)日：2022-09-29
申请号：US17211430
申请日：2021-03-24
Applicant: DELL PRODUCTS L.P.
Inventor： Merle Wood, III , Chin-Jui Liu , Shiguo Luo , Feng-Yu Wu
Abstract: Monolithic power stage (Pstage) packages and methods for using same are provided that may be implemented to provide lower thermal resistance/enhanced thermal performance, reduced noise, and/or smaller package footprint than conventional monolithic Pstage packages. The conductive pads of the disclosed Pstage packages may be provided with a larger surface area for contacting respective conductive layers of a mated PCB to provide a more effective and increased heat transfer away from a monolithic Pstage package. In one example, the increased heat transfer away from the monolithic Pstage package results in lower monolithic Pstage package operating temperature and increased power output. In another example, a monolithic Pstage package may be provided with an adaptive application-oriented interface and a multi-function pin that allows the same monolithic Pstage package to automatically detect and select between a relatively higher power information handling system application, and a relatively lower power information handling system VR application.
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公开(公告)号：US10824214B2
公开(公告)日：2020-11-03
申请号：US15911459
申请日：2018-03-05
Applicant: Dell Products L.P.
Inventor： Feng-Yu Wu , Shiguo Luo
Abstract: A method may include operating a power system coupled to at least one information handling resource, configured to provide electrical energy to the at least one information handling resource, and comprising a plurality of voltage regulator phases, in a plurality of operational modes, each mode defining a number of the plurality of voltage regulator phases operating in a fully-enabled mode and whether or not one of the plurality of voltage regulator phases operates in a light-load mode, selecting a selected operational mode from the plurality of operational modes based on a load requirement of the at least one information handling resource, and controlling the plurality of voltage regulator phases to deliver an aggregate current in accordance with the load requirement and the selected operational mode.
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公开(公告)号：US10338669B2
公开(公告)日：2019-07-02
申请号：US14924644
申请日：2015-10-27
Applicant: DELL PRODUCTS, L.P.
Inventor： Shiguo Luo , Kejiu Zhang , Feng-Yu Wu
IPC: G06F1/32 , G06F1/20 , G06F1/3296 , G06F1/3206
Abstract: An information handling system (IHS) includes temperature-compensated power control by a voltage regulation (VR) module to: (i) receive a monitored current (Imon) value from a current sensor integrated into the VR module; (ii) receive a temperature value from the temperature sensor also integrated into the VR module; (iii) determine a temperature-compensated Imon value based at least in part on the Imon value, the temperature value, and an empirically-derived temperature coefficient defined at the Imon value and the temperature value; and (iv) control the voltage-regulated power at least in part based on the temperature-compensated Imon value. The empirically-derived temperature coefficient adjusts for nonlinear portions of temperature coupling relationship between a portion of an integrated circuit (IC) die that can include the current sensor and the temperature sensor and a temperature experienced by by active portion of VR module.
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Patent Agency Ranking
公开(公告)号：US20170104417A1
公开(公告)日：2017-04-13
申请号：US14879146
申请日：2015-10-09
Applicant: DELL PRODUCTS, L.P.
Inventor： Tsai-Fu Hung , Yu-Hung Lai , Shih-Chieh Wang , Feng-Yu Wu
CPC classification number: H02M3/33546 , H02M1/14 , H02M1/42 , H02M3/3376 , H02M2001/0058 , Y02B70/1433 , Y02B70/1491
Abstract: Systems and methods for reducing the line frequency ripple in a resonant converter are described. In some embodiments, a power supply includes a switching network; an LLC resonant tank coupled to the switching network; a rectifier coupled to the LLC resonant tank; and a control circuit coupled to the switching network and to the rectifier, where the control circuit is configured to modify an operating frequency of the switching network to reduce a line frequency ripple at an output of the rectifier.
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公开(公告)号：US11023024B1
公开(公告)日：2021-06-01
申请号：US16781687
申请日：2020-02-04
Applicant: Dell Products L.P.
Inventor： Chih-Chung Chen , Feng-Yu Wu , Gin-Yen Yang
IPC: G06F1/26 , G06F9/4401 , G06F13/42 , G06F13/20
Abstract: A voltage regulator configuration system includes a voltage regulator module that is coupled to a processing system and that is configured to provide a voltage to the processing system. A Basic Input/Output System (BIOS) that is also coupled to the processing system and the BIOS identifies a processing system mode in which the processing system is operating and identifies a voltage regulator module configuration for the voltage regulator module based on the processing system mode. The BIOS transmits a voltage regulator module configuration command that includes the voltage regulator module configuration to a remote access controller. The remote access controller configures the voltage regulator module with the voltage regulator module configuration.
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公开(公告)号：US12273046B2
公开(公告)日：2025-04-08
申请号：US18076996
申请日：2022-12-07
Applicant: Dell Products L.P.
Inventor： Shiguo Luo , Guangyong Zhu , Lei Wang , Feng-Yu Wu
Abstract: A voltage regulator includes a first portion with a first converter phase and a second portion with second and third converter phases, and a compensation inductor. The first converter phase receives an input voltage and provides an output voltage through a first inductor. The second converter phase receives the input voltage and provides the output voltage through a first primary winding of a first coupled inductor. The first coupled inductor includes a first secondary winding magnetically coupled to the first primary winding. The third converter phase receives the input voltage and provides the output voltage through a second primary winding of a second coupled inductor. The second coupled inductor includes a second secondary winding magnetically coupled to the second primary winding. The compensation inductor, first secondary winding, and of the second secondary winding are coupled in series between a ground plane.
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公开(公告)号：US10020736B2
公开(公告)日：2018-07-10
申请号：US14841669
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
CPC classification number: H02M3/1584 , G06F1/26 , H02M2001/0009 , H02M2003/1586
Abstract: A method and an information handling system (IHS) perform current calibration of a multi-phase voltage regulator (VR) by using a calibrated operating phase to calibrate an unknown operating phase. A calibration controller, using a pulse width modulation (PWM) controller, enables a first unknown operating phase within a first converter sub-circuit in the multiphase VR. The calibration controller enables a calibrated circuit component electronically coupled to the first unknown operating phase. The calibration controller determines a target voltage for the first unknown operating phase based on sense component specifications. The calibration controller determines, for the first unknown operating phase, a sense voltage that identifies the first unknown operating phase as a first evaluated operating phase. The calibration controller performs calibration of operating phases of the multi-phase VR, including the first evaluated operating phase, based on a respective difference between a sense voltage and a corresponding target voltage for each operating phase.
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公开(公告)号：US20240195322A1
公开(公告)日：2024-06-13
申请号：US18076996
申请日：2022-12-07
Applicant: Dell Products L.P.
Inventor： Shiguo Luo , Guangyong Zhu , Lei Wang , Feng-Yu Wu
CPC classification number: H02M7/537 , G06F1/26 , H02M1/0043
Abstract: A voltage regulator includes a first portion with a first converter phase and a second portion with second and third converter phases, and a compensation inductor. The first converter phase receives an input voltage and provides an output voltage through a first inductor. The second converter phase receives the input voltage and provides the output voltage through a first primary winding of a first coupled inductor. The first coupled inductor includes a first secondary winding magnetically coupled to the first primary winding. The third converter phase receives the input voltage and provides the output voltage through a second primary winding of a second coupled inductor. The second coupled inductor includes a second secondary winding magnetically coupled to the second primary winding. The compensation inductor, first secondary winding, and of the second secondary winding are coupled in series between a ground plane.
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