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1. 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.

2. 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。

3. 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。

4. 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.

5. 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.

6. 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.

7. 发明授权

US08726052B2 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：US08726052B2
公开(公告)日：2014-05-13
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： G06F1/00 , G06F1/26 , H02J7/00 , G05F5/00 , B23K11/24 , H02M7/34 , H04M1/00
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。

8. 发明申请

US20220269327A1 EXTERNAL POWER SUPPLY AND METHOD TO ENHANCE THE OUTPUT POWER DELIVERED BY AN EXTERNAL POWER SUPPLY 有权
公开(公告)号：US20220269327A1
公开(公告)日：2022-08-25
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 , G06F1/28 , G06F13/42
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. 发明授权

US10531530B2 Controlling a power adaptor light-emitting diode (LED) indicator 有权
公开(公告)号：US10531530B2
公开(公告)日：2020-01-07
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： H02J7/02 , 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

US20160097820A1 Battery Performance Under high Temperature Exposure 有权
标题翻译：高温曝光时的电池性能
公开(公告)号：US20160097820A1
公开(公告)日：2016-04-07
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： G01R31/36
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.
摘要翻译：用于便携式信息处理系统的电池系统可以基于电池的温度暴露来修改充电参数。当电池充电并暴露于高温时，电池可能会被放电到较低的电压。在暴露于高温的累积周期之后，电池的最高电荷（TOC）电压可能会永久性降低。在高温充电之前，可能会在下一个充电周期内降低TOC电压。降低TOC电压可以减少电池性能的不利影响。

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