公开(公告)号：US11099629B2

公开(公告)日：2021-08-24

申请号：US16596052

申请日：2019-10-08

Applicant: DELL PRODUCTS, LP

Inventor： Geroncio O. Tan ,  Merle J. Wood, III ,  Marcin M. Nowak ,  Wei-Cheng (Jason) Yu ,  Tsung-Cheng (Anson) Liao

IPC: G06F1/00 ,  G06F1/3296 ,  G01R19/14 ,  G06F1/26

Abstract: An information handling system (IHS) includes a source load switch connected to a power management circuit, and a port for connection of a device. The IHS detects attachment of the device to the port, and determines whether the device is a current sink. When the device is a current sink, the IHS sets the peak processor power level to a reduced level, determines detachment of the device, and in response to determining detachment of the device, restores a maximum peak processor power level. When the device is not a current sink, the HIS starts charging, sets a dynamic peak processor power level to an AC+DC setting, determines detachment of the device, and in response to determining detachment of the device, sets the peak processor power level to a DC-only setting.

公开(公告)号：US20170093165A1

公开(公告)日：2017-03-30

申请号：US14865964

申请日：2015-09-25

Applicant: Dell Products, LP

Inventor： Tsung-Cheng (Anson) Liao ,  Wei-Cheng (Jason) Yu ,  Yang Wang ,  Tso-Jen (Hunter) Peng

IPC: H02J5/00 ,  H02M3/04

CPC classification number: H02J5/00 ,  H02M7/48 ,  H02M2001/0032 ,  H02M2001/007 ,  H02M2007/4815 ,  Y02B70/1441 ,  Y02B70/16

Abstract: A power supply includes an LLC resonant power converter to provide a first reference signal having a first voltage. The power supply also includes a DC-DC power converter to provide a second reference signal having a second voltage. The DC-DC converter receives power from the first reference signal. The power supply further includes a switch circuit including a first input to receive the first reference signal, a second input to receive the second reference signal, an input to receive a switch control message, and an output coupled to a power rail. The switch circuit is configured to connect the first reference signal and the second reference signal to the power rail based on the switch control message.

公开(公告)号：US20210103330A1

公开(公告)日：2021-04-08

申请号：US16596052

申请日：2019-10-08

Applicant: DELL PRODUCTS, LP

Inventor： Geroncio O. Tan ,  Merle J. Wood, III ,  Marcin M. Nowak ,  Wei-Cheng (Jason) Yu ,  Tsung-Cheng (Anson) Liao

IPC: G06F1/3296 ,  G06F1/26 ,  G01R19/14

Abstract: An information handling system (IHS) includes a source load switch connected to a power management circuit, and a port for connection of a device. The IHS detects attachment of the device to the port, and determines whether the device is a current sink. When the device is a current sink, the IHS sets the peak processor power level to a reduced level, determines detachment of the device, and in response to determining detachment of the device, restores a maximum peak processor power level. When the device is not a current sink, the HIS starts charging, sets a dynamic peak processor power level to an AC+DC setting, determines detachment of the device, and in response to determining detachment of the device, sets the peak processor power level to a DC-only setting.