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公开(公告)号:US11979978B2
公开(公告)日:2024-05-07
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
IPC: H05K1/02
CPC classification number: H05K1/0209 , H05K1/0207 , H05K1/0215 , H05K2201/10166 , H05K2201/10212
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:US09971389B2
公开(公告)日:2018-05-15
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.
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公开(公告)号:US09577505B1
公开(公告)日:2017-02-21
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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