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公开(公告)号：US20220231532A1
公开(公告)日：2022-07-21
申请号：US17154140
申请日：2021-01-21
申请人： Dell Products L.P.
摘要： A disclosed information handling system is coupled to a power adapter that is coupled to an AC line power source. The system includes an embedded controller storing instructions executable to determine that a trigger condition for limiting electrical power drawn by the system from the power adapter is met and, in response to the determination and in accordance with a low power operating mode, to limit electrical power drawn from the power adapter by the system to an amount less than or equal to the lesser of a power rating of the power adapter and a capacity of the AC line power source to supply electrical power. Limiting the electrical power drawn from the power adapter may include limiting the electrical power consumed by operation of the system or limiting a rate at which an internal battery of the system is charged by electrical power supplied by the power adapter.
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公开(公告)号：US11196279B2
公开(公告)日：2021-12-07
申请号：US16776832
申请日：2020-01-30
申请人： Dell Products L.P.
IPC分类号： H02J7/00
摘要： In one or more embodiments, one or more systems, methods, and/or processes may: charge a battery from a first end of discharge (EOD) voltage to a first voltage; discharge the battery to a second EOD voltage; in response to discharging the battery to the second EOD voltage, withhold power from one or more cells of the battery to at least one component of a system; charge, from the second EOD voltage to a second voltage, greater than the second voltage and less than the first voltage; discharge the battery to a third EOD voltage; in response to discharging the battery to the third EOD voltage, withhold power from the one or more cells to the at least one component; charge, from the third EOD voltage to a third voltage, greater than or equal to the second EOD voltage; and discharge the battery to the first EOD voltage.
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公开(公告)号：US10978896B2
公开(公告)日：2021-04-13
申请号：US15631684
申请日：2017-06-23
申请人： Dell Products L.P.
摘要： A power storage adapter for portable information handling systems may include a separate battery and intelligent power management functionality. The power storage adapter may be equipped with fewer voltage regulators and boosted charging for improved efficiency. The power storage adapter may output power to a variable power bus, such as USB Type-C.
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公开(公告)号：US20190087295A1
公开(公告)日：2019-03-21
申请号：US15707670
申请日：2017-09-18
申请人： Dell Products L.P.
摘要： A variable power bus cable, such as a USB Type-C cable, is validated for actual current capacity with respect to a specified power rating for the cable. The power cable validation is performed when the cable is connected to a power storage adapter and a portable information handling system.
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5.发明申请公开(公告)号：US20190074708A1
公开(公告)日：2019-03-07
申请号：US15694553
申请日：2017-09-01
申请人： Dell Products L.P.
摘要： A power adapter device may use a method for efficient charging of multiple portable information handling systems based on learned charging characteristics. In particular, when electrical power is delivered to at least one of the portable information handling systems, the power adapter device may prioritize electrical power delivery to another portable information handling system ahead of the portable information handling systems based on the learned charging characteristics such that charging is efficient.
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公开(公告)号：US20180375359A1
公开(公告)日：2018-12-27
申请号：US15631724
申请日：2017-06-23
申请人： Dell Products L.P.
IPC分类号： H02J7/00
CPC分类号： H02J7/0068 , H02J7/0054 , H02J7/0081 , H02J2007/0062 , H02J2007/0096 , H02J2007/0098
摘要： A power storage adapter may use a high efficiency charging method when supplying electrical power to a portable information handling system when the power storage adapter is not connected to AC line power. In particular, the power storage adapter may minimize or avoid supplying electrical power when an internal battery of the portable information handling system is in a constant voltage charging regime (or at a given state of charge), in which the electrical power decreases as the state of charge increases.
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公开(公告)号：US11916430B2
公开(公告)日：2024-02-27
申请号：US17154140
申请日：2021-01-21
申请人： Dell Products L.P.
摘要： A disclosed information handling system is coupled to a power adapter that is coupled to an AC line power source. The system includes an embedded controller storing instructions executable to determine that a trigger condition for limiting electrical power drawn by the system from the power adapter is met and, in response to the determination and in accordance with a low power operating mode, to limit electrical power drawn from the power adapter by the system to an amount less than or equal to the lesser of a power rating of the power adapter and a capacity of the AC line power source to supply electrical power. Limiting the electrical power drawn from the power adapter may include limiting the electrical power consumed by operation of the system or limiting a rate at which an internal battery of the system is charged by electrical power supplied by the power adapter.
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8.发明申请公开(公告)号：US20220093980A1
公开(公告)日：2022-03-24
申请号：US17026709
申请日：2020-09-21
申请人： Dell Products L.P.
摘要： In one or more embodiments, one or more systems, one or more methods, and/or one or more processes may determine first multiple impedance values of respective multiple resistors associated with a barrier of an enclosure of a cell of a rechargeable battery that includes multiple cells; determine second multiple impedance values of the respective multiple resistors; determine multiple impedance value changes of the respective multiple resistors based at least on the first multiple impedance values and the second multiple impedance values; determine that at least a portion of the multiple impedance value changes exceed a threshold impedance value change; determine that the cell is compromised based at least on determining that the at least the portion of the multiple impedance value changes exceed the threshold impedance value change; and in response to determining that the cell is compromised, remove the cell from a topology of the rechargeable battery.
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公开(公告)号：US20220091655A1
公开(公告)日：2022-03-24
申请号：US17028273
申请日：2020-09-22
申请人： Dell Products L.P.
发明人： Richard Christopher Thompson , Nikhil Manohar Vichare , Michael Raymond Nechay , Tyler Ryan Cox , Thanh Thien Tran
IPC分类号： G06F1/3212 , G06F1/28 , G01R31/367 , G01R31/371
摘要： In one or more embodiments, one or more systems, one or more methods, and/or one or more processes may determine a historical discharge rate (dh) from multiple discharge rates a battery of an information handling system (IHS) while the IHS operates on electrical power provided by the battery; receive a current discharge rate (dc) of the battery; determine a full charge capacity correction factor value (Cfcc) associated with the battery; determine a weighting factor (α); determine a difference between a full charge capacity value (FCC) and Cfcc; determine α·dh; determine (1−α)·dc; determine a sum of dh·α and dc·α; determine a quotient value of FCC−Cfcc and α·dh+(1−α)·dc; scale the quotient value based at least on a relative state of charge of the battery to determine an estimated time remaining for the IHS to operate on the electrical power provided by the battery; and display the estimated time remaining.
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公开(公告)号：US20220091650A1
公开(公告)日：2022-03-24
申请号：US17028453
申请日：2020-09-22
申请人： Dell Products L.P.
摘要： In one or more embodiments, one or more systems, one or more methods, and/or one or more processes may convert first analog signals to first digital values, in which the first analog signals are proportional to current of a battery of an information handling system (IHS); convert the second analog signals to second digital values, in which the second analog signals are proportional to current from a power supply; convert the third analog signals to third digital values, in which the third analog signals are proportional to power consumption of components of the IHS and the battery; and provide a first mean digital value determined from the first digital values, a second mean value determined from the second digital values, and a third mean digital value determined from the third digital values to at least one of IHS firmware, an application, and an operating system.
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