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1. 发明公开

US20240356091A1 BATTERY SYSTEMS UTILIZING ASYMMETRIC CONFIGURATIONS OF MULTIPLE CELL BLOCKS AND METHODS RELATED TO SAME 审中-公开
公开(公告)号：US20240356091A1
公开(公告)日：2024-10-24
申请号：US18136877
申请日：2023-04-20
申请人： DELL PRODUCTS L.P.
发明人： Rick C. Thompson , Jui Chin Fang , Wen-Yung Chang
IPC分类号： H01M10/42 , H01M50/509
CPC分类号： H01M10/4257 , H01M50/509 , H01M2010/4271
摘要： Battery systems and related methods are provided in which a single battery system may be implemented to have an asymmetric configuration of multiple battery cell blocks that each have the same block charge capacity, and in which all of the battery cell blocks of the single battery system taken together form the asymmetric configuration of multiple battery cell blocks. Each of the multiple battery cell blocks of a single battery system (e.g., battery pack) may be configured with one or more battery cells, the multiple battery cell blocks may be electrically coupled together in series, and at least a first one of the multiple battery cell blocks may have a first internal battery cell configuration that is different from a second internal battery cell configuration of at least a second one of the other multiple battery cell blocks of the same battery system.

2. 发明公开

US20240353494A1 INTELLIGENT RISK PREVENTION MODE FOR ABNORMAL BATTERY TEMPERATURE PREDICTION 审中-公开
公开(公告)号：US20240353494A1
公开(公告)日：2024-10-24
申请号：US18304678
申请日：2023-04-21
申请人： DELL PRODUCTS L.P.
发明人： Shuo-Jung Chou , Tsz Leung , Chia-Fa Chang , Chien-Hao Chiu , Wen-Yung Chang , Yu-Chi Chin
IPC分类号： G01R31/36 , G01R31/367 , G01R31/374 , H02J7/00
CPC分类号： G01R31/3648 , G01R31/367 , G01R31/374 , H02J7/0048 , H02J7/007194
摘要： An information handling system determines that a relative state of charge (RSOC) on the battery is above a threshold RSOC. When the RSOC is above the RSOC threshold, the system determines that an initial temperature of the battery is within a first range, determines that a time rate of temperature increase on the battery is greater than a first slope, the first slope being determined based upon the first range, and discharges the battery to below the threshold RSOC in response to the determining that the time rate of temperature increase is greater than the first slope.

3. 发明公开

US20240235396A9 SMART COMPENSATION FOR BUCK CONVERTERS IN DISCONTINUOUS CONDUCTION MODE 审中-公开
公开(公告)号：US20240235396A9
公开(公告)日：2024-07-11
申请号：US17972811
申请日：2022-10-25
申请人： Dell Products L.P.
发明人： Chia-Kun Wu , Shao-Suz Ho , Wen-Yung Chang
IPC分类号： H02M3/158
CPC分类号： H02M3/1582 , H02M3/1588
摘要： A buck converter includes a high-side N-FET, a low-side N-FET, a P-FET, a between a gate terminal and a source terminal of the P-FET, aa capacitor, and a FET driver. The FET driver operates in a selectable one of a continuous current mode and a discontinuous current mode. In a first phase of the discontinuous current mode, a gate voltage on the gate terminal the N-FET equalizes to a source voltage on the source terminal of the N-FET to turn on the first N-FET. A high output voltage on a high-side output of the FET driver is high enough to overcome a threshold voltage of a body diode of the first P-FET to provide the high output voltage minus a threshold voltage to the gate terminal of the high-side P-FET to turn on the high-side P-FET.

4. 发明授权

US09753094B2 Battery performance under high temperature exposure 有权
公开(公告)号：US09753094B2
公开(公告)日：2017-09-05
申请号：US14504683
申请日：2014-10-02
申请人： Dell Products L.P.
发明人： Richard C. Thompson , Wen-Yung Chang
IPC分类号： H02J7/00 , H02J7/14 , G01R31/36 , H02J7/04
CPC分类号： G01R31/3675 , H02J7/0008 , H02J7/007 , H02J7/0091 , H02J7/047
摘要： A battery system for a portable information handling system may modify charging parameters based on temperature exposure of a battery. When the battery is charged and exposed to a high temperature, the battery may be discharged to a lower voltage. After a cumulative period of exposure to a high temperature, a top-of-charge (TOC) voltage may be permanently reduced for the battery. Prior to charging at a high temperature, the TOC voltage may be reduced for a next charge cycle. Reducing the TOC voltage may minimize adverse effects for battery performance.

5. 发明申请

US20160056600A1 Information Handling System Multi-Axis Power Adapter 有权
标题翻译：信息处理系统多轴电源适配器
公开(公告)号：US20160056600A1
公开(公告)日：2016-02-25
申请号：US14467596
申请日：2014-08-25
申请人： Dell Products L.P.
发明人： Tsung-Cheng Liao , Wen-Yung Chang , Justin C. Lyles , James Yao
IPC分类号： H01R35/04 , H01R43/26 , H01R13/66
CPC分类号： H01R35/04 , H01R13/44 , H01R13/6675 , H01R31/06 , H01R43/26 , H01R2103/00 , H02J7/00 , H02J7/0042
摘要： An information handling system power adapter removably couples with a multi-axis plug that rotates between storage, wall socket and power strip positions. The storage position rotates prongs that insert into a power socket so the prongs are retracted into the power adapter, rotates prongs to plug into a wall socket so that the power adapter aligns parallel to the wall having the wall socket, and rotates the prongs to plug into a power strip socket so that the power adapter aligns perpendicular to the power strip having the socket. The multi-axis plug inserts into a power cable receptacle of the power adapter so that an end user may selectively remove the multi-axis plug and insert a power cable that terminates at a plug to connect the power adapter with a power socket through the power cable.
摘要翻译：信息处理系统电源适配器可拆卸地与存储，墙上插座和电源板位置之间旋转的多轴插头耦合。存储位置旋转插入电源插座的插脚，使插脚缩回到电源适配器中，旋转插头插入墙壁插座，使电源适配器平行于具有墙壁插座的墙壁对齐，并将插头旋转到插头进入电源插座，使得电源适配器垂直于具有插座的电源板对准。多轴插头插入电源适配器的电源线插座，以便终端用户可以选择性地移除多轴插头并插入端接在插头上的电源线，以通过电源将电源适配器与电源插座连接电缆。

6. 发明申请

US20130254564A1 BATTERY LIFE EXTENDING POWER SUPPLY SYSTEM 有权
标题翻译：电池寿命延长电源系统
公开(公告)号：US20130254564A1
公开(公告)日：2013-09-26
申请号：US13892927
申请日：2013-05-13
申请人： Dell Products L.P.
发明人： Yung Fa Chueh , Chia-Fa Chang , Wen-Yung Chang
IPC分类号： H02J7/00 , H02J5/00 , G06F1/26
CPC分类号： G06F1/263 , H02J7/0031 , H02J7/0068 , H02J7/02 , Y10T307/696
摘要： A power supply system includes a battery and a power management system. The power management system is coupled to the battery and to an external power source that is operable to charge the battery using a first charge level. The power management system is operable to determine that a battery power level of the battery is greater than a first predetermined level that depends on a battery storage option and, in response, disable power from being supplied from the external power source such that power is supplied from the battery until the battery power level is below the first predetermined level. The power management system is also operable to determine that the battery power level of the battery is less than the first predetermined level and, in response, charge the battery with a second charge level that is less than the first charge level until the battery power level is above a second predetermined level that depends on the battery storage option.
摘要翻译：电源系统包括电池和电源管理系统。电源管理系统耦合到电池和外部电源，外部电源可操作以使用第一电荷电平对电池充电。电源管理系统可操作以确定电池的电池电量级别大于取决于电池存储选项的第一预定电平，并且作为响应，禁止从外部电源供应电力，从而提供电力从电池到电池功率水平低于第一预定水平。电源管理系统还可操作以确定电池的电池电量级别小于第一预定电平，并且作为响应，以小于第一充电电平的第二充电电平对电池充电直到电池功率电平高于取决于电池存储选项的第二预定水平。

7. 发明公开

US20240322586A1 SYSTEMS AND METHODS FOR INTELLIGENT REACTIVATION OF BATTERY CELLS OF BATTERY SYSTEMS 审中-公开
公开(公告)号：US20240322586A1
公开(公告)日：2024-09-26
申请号：US18189161
申请日：2023-03-23
申请人： DELL PRODUCTS L.P.
发明人： Yan Ning , Jui Chin Fang , Wen-Yung Chang
IPC分类号： H02J7/00 , H01M10/44
CPC分类号： H02J7/007182 , H01M10/441 , H02J7/00032 , H02J7/0013 , H02J7/0049
摘要： Systems and methods are provided that may be implemented to automatically and intelligently re-activate battery cell/s of a battery system after the battery system has been subjected to relatively long term storage with the battery system inactive and unpowered by external power. The disclosed systems and methods may be so automatically implemented once external power is provided to the battery system and the battery system becomes active again. In one example, the disclosed systems and methods may be implemented on a battery-powered information handling system using logic executing on a programmable integrated circuit of a battery system (e.g., battery management unit “BMU”) of the information handling system and/or at the system level (e.g., such as embedded controller “EC”) of the information handling system.

8. 发明授权

US11442519B1 External power supply and method to enhance the output power delivered by an external power supply 有权
公开(公告)号：US11442519B1
公开(公告)日：2022-09-13
申请号：US17182779
申请日：2021-02-23
申请人： DELL PRODUCTS L.P.
发明人： Wei Cheng Yu , Geroncio O. Tan , Merle Wood, III , Chi Che Wu , Tsung-Cheng Liao , Wen-Yung Chang
IPC分类号： G06F1/26 , H02M3/335 , H02M1/32 , G05B19/042 , G06F13/42 , G06F1/28
摘要： The present disclosure provides various embodiments of an external power supply and methods to enhance the output power delivered by an external power supply to a power consuming load. As described in more detail below, the embodiments disclosed herein enable an external power supply to deliver a higher than maximum output power for short periods of time when ambient temperatures within the external power supply are low. As the ambient temperature increases, the embodiments disclosed herein throttle (or incrementally reduce) the output power delivered by the external power supply until the maximum output power specified for the power supply is reached. Although not strictly limited to such, the external power supply may be a Universal Serial Bus (USB)-enabled AC/DC adapter, and more specifically, a USB Power Deliver (USB-PD) AC/DC adapter, in some embodiments.

9. 发明申请

US20190104586A1 CONTROLLING A POWER ADAPTOR LIGHT-EMITTING DIODE (LED) INDICATOR 审中-公开
公开(公告)号：US20190104586A1
公开(公告)日：2019-04-04
申请号：US15723987
申请日：2017-10-03
申请人： Dell Products, L.P.
发明人： Wei-Cheng Yu , Tsung-Cheng Liao , Merle Jackson Wood, III , Wen-Yung Chang
IPC分类号： H05B33/08 , H02J7/00
摘要： Systems and methods for controlling a power adaptor Light-Emitting Diode (LED) indicator are described. In some embodiments, a method may include: detecting a coupling of a power adaptor to a voltage source; setting a plurality of transistors in a first configuration, where the first configuration provides power an LED coupled to the power adaptor via a cable; detecting a de-coupling of the power adaptor from the voltage source; and setting the plurality of transistors in a second configuration, where the second configuration ceases to provide power to the LED.

10. 发明申请

US20170179831A1 ZERO VOLTAGE SWITCHING FLYBACK CONVERTER 有权
公开(公告)号：US20170179831A1
公开(公告)日：2017-06-22
申请号：US14973456
申请日：2015-12-17
申请人： Dell Products L.P.
发明人： Wei Cheng Yu , Tsung-Cheng Liao , Wen-Yung Chang , Merle Jackson Wood, III , Tun-Chieh Liang
IPC分类号： H02M3/335
CPC分类号： H02M3/33569 , H02M2001/0022
摘要： A zero voltage switching method for a flyback converter featuring a transformer with first and second primary windings and corresponding turns ratios, N1 and N2, includes rectifying and filtering an AC signal to produce a primary DC voltage. A voltage level signal indicating whether the primary DC voltage falls within a particular voltage range is generated. The voltage level signal is used to select a particular primary winding from either the first primary winding or the second primary winding. A PWM controller corresponding to the particular primary winding is activated and an output of the particular PWM controller performs zero voltage switching of a gate terminal of the applicable main switching transistor. A duty cycle of the main switching transistor is maintained within a range of approximately 50% to approximately 60% in accordance with the turns ratio and the primary DC voltage to achieve a desired output voltage.

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