公开(公告)号：US08456142B2

公开(公告)日：2013-06-04

申请号：US13281956

申请日：2011-10-26

申请人： Guangyong Zhu ,  Merle J. Wood ,  Joseph A. Clegg

发明人： Guangyong Zhu ,  Merle J. Wood ,  Joseph A. Clegg

IPC分类号： G05F1/00

CPC分类号： H02J7/32 ,  H02J9/061 ,  Y10T307/414

摘要： Power is supplied to an information handling system chipset with a single voltage regulator having dual phases. A first phase of the voltage regulator provides power to a low power state power rail in an independent mode to support a low power state, such as a suspend or hibernate state. A second phase of the voltage regulator provides power to a run power state power rail in combination with the first phase by activation of a switch, such as a MOSFET load switch, that connects the low power state power rail and the run power state power rail. Voltage sensed from both power rails is applied to control voltage output so that the run power state power rail is maintained within more precise constraints than the low power state power rail.

摘要翻译： 使用具有双相的单个电压调节器将功率提供给信息处理系统芯片组。 电压调节器的第一阶段以独立模式向低功率状态电源轨提供电力，以支持低功率状态，例如暂停或休眠状态。 电压调节器的第二阶段通过激活连接低功率状态电源轨和运行功率状态电力轨的开关（例如MOSFET负载开关），与运行功率状态电力轨相结合，为第一阶段提供电力 。 施加从两个电力轨道感测的电压来控制电压输出，使得运行功率状态电力轨道比低功率状态电力轨道保持在更精确的约束之内。

公开(公告)号：US20100096924A1

公开(公告)日：2010-04-22

申请号：US12254489

申请日：2008-10-20

申请人： Guangyong Zhu ,  Merle J. Wood ,  Joseph A. Clegg

发明人： Guangyong Zhu ,  Merle J. Wood ,  Joseph A. Clegg

IPC分类号： H02J1/00

CPC分类号： H02J7/32 ,  H02J9/061 ,  Y10T307/414

摘要： Power is supplied to an information handling system chipset with a single voltage regulator having dual phases. A first phase of the voltage regulator provides power to a low power state power rail in an independent mode to support a low power state, such as a suspend or hibernate state. A second phase of the voltage regulator provides power to a run power state power rail in combination with the first phase by activation of a switch, such as a MOSFET load switch, that connects the low power state power rail and the run power state power rail. Voltage sensed from both power rails is applied to control voltage output so that the run power state power rail is maintained within more precise constraints than the low power state power rail.

摘要翻译： 使用具有双相的单个电压调节器将功率提供给信息处理系统芯片组。 电压调节器的第一阶段以独立模式向低功率状态电源轨提供电力，以支持低功率状态，例如暂停或休眠状态。 电压调节器的第二阶段通过激活连接低功率状态电源轨和运行功率状态电力轨的开关（例如MOSFET负载开关），与运行功率状态电力轨相结合，为第一阶段提供电力 。 施加从两个电力轨道感测的电压来控制电压输出，使得运行功率状态电力轨道比低功率状态电力轨道保持在更精确的约束之内。

公开(公告)号：US20120038339A1

公开(公告)日：2012-02-16

申请号：US13281956

申请日：2011-10-26

申请人： Guangyong Zhu ,  Merle J. Wood ,  Joseph A. Clegg

发明人： Guangyong Zhu ,  Merle J. Wood ,  Joseph A. Clegg

IPC分类号： G05F1/00

CPC分类号： H02J7/32 ,  H02J9/061 ,  Y10T307/414

摘要： Power is supplied to an information handling system chipset with a single voltage regulator having dual phases. A first phase of the voltage regulator provides power to a low power state power rail in an independent mode to support a low power state, such as a suspend or hibernate state. A second phase of the voltage regulator provides power to a run power state power rail in combination with the first phase by activation of a switch, such as a MOSFET load switch, that connects the low power state power rail and the run power state power rail. Voltage sensed from both power rails is applied to control voltage output so that the run power state power rail is maintained within more precise constraints than the low power state power rail.

摘要翻译： 使用具有双相的单个电压调节器将功率提供给信息处理系统芯片组。 电压调节器的第一阶段以独立模式向低功率状态电源轨提供电力，以支持低功率状态，例如暂停或休眠状态。 电压调节器的第二阶段通过激活连接低功率状态电源轨和运行功率状态电力轨的开关（例如MOSFET负载开关），与运行功率状态电力轨相结合，为第一阶段提供电力 。 施加从两个电力轨道感测的电压来控制电压输出，使得运行功率状态电力轨道比低功率状态电力轨道保持在更精确的约束之内。

公开(公告)号：US08063619B2

公开(公告)日：2011-11-22

申请号：US12254489

申请日：2008-10-20

申请人： Guangyong Zhu ,  Merle J. Wood ,  Joseph A. Clegg

发明人： Guangyong Zhu ,  Merle J. Wood ,  Joseph A. Clegg

IPC分类号： G05F1/00

CPC分类号： H02J7/32 ,  H02J9/061 ,  Y10T307/414

摘要： Power is supplied to an information handling system chipset with a single voltage regulator having dual phases. A first phase of the voltage regulator provides power to a low power state power rail in an independent mode to support a low power state, such as a suspend or hibernate state. A second phase of the voltage regulator provides power to a run power state power rail in combination with the first phase by activation of a switch, such as a MOSFET load switch, that connects the low power state power rail and the run power state power rail. Voltage sensed from both power rails is applied to control voltage output so that the run power state power rail is maintained within more precise constraints than the low power state power rail.

摘要翻译： 使用具有双相的单个电压调节器将功率提供给信息处理系统芯片组。 电压调节器的第一阶段以独立模式向低功率状态电源轨提供电力，以支持低功率状态，例如暂停或休眠状态。 电压调节器的第二阶段通过激活连接低功率状态电源轨和运行功率状态电力轨的开关（例如MOSFET负载开关），与运行功率状态电力轨相结合，为第一阶段提供电力 。 施加从两个电力轨道感测的电压来控制电压输出，使得运行功率状态电力轨道比低功率状态电力轨道保持在更精确的约束内。

公开(公告)号：US20090251837A1

公开(公告)日：2009-10-08

申请号：US12061830

申请日：2008-04-03

申请人： Greg R. Fiebrich ,  Erin L. Price ,  Guangyong Zhu

发明人： Greg R. Fiebrich ,  Erin L. Price ,  Guangyong Zhu

IPC分类号： H02H3/08 ,  H05B37/02

CPC分类号： H05B33/0887 ,  Y02B20/341

摘要： A current limiting MOSFET monitors power applied to a direct current boost regulator that powers an LED backlight to automatically shut off power to the boost regulator if the current exceeds a predetermined amount. An embedded controller interfaces with the current limiting MOSFET for normal control of operation of the boost regulator by turning the MOSFET on and off. An overcurrent alert is communicated from the MOSFET to the embedded controller if the current exceeds the predetermined amount so that the embedded controller shuts off power to the boost regulator and indicates the failure to an end user.

摘要翻译： 电流限制MOSFET监视施加到直流升压调节器的功率，该电流为LED背光供电，如果电流超过预定量，则自动切断升压稳压器的电源。 嵌入式控制器与限流MOSFET接口，用于通过开启和关闭MOSFET来正常控制升压稳压器的工作。 如果电流超过预定量，则过电流警报从MOSFET传送到嵌入式控制器，以便嵌入式控制器关闭升压稳压器的电源并向最终用户指示故障。

公开(公告)号：US07518341B2

公开(公告)日：2009-04-14

申请号：US11021377

申请日：2004-12-23

申请人： Ligong Wang ,  Guangyong Zhu

发明人： Ligong Wang ,  Guangyong Zhu

IPC分类号： H02J7/00 ,  H02H3/20 ,  H02H3/027 ,  H02H3/08 ,  H02H7/00

CPC分类号： H02J7/0047 ,  G01R31/3624 ,  H02J7/0031

摘要： A method and associated system are disclosed for verifying charging failures for smart batteries by measuring input charging voltage and associated systems. In one embodiment, a determination is made whether or not a charging current is indicative of a battery failure by utilizing an analog-to-digital (A/D) port to measure the input charging voltage. As long as the measured input charging voltage is below the cell pack voltage or some set voltage value, whichever is higher, the BMU considers a charging current detection to be a false failure indication. If the measured charging voltage is above the cell pack voltage and the set voltage value, the BMU considers the charging current detection to be a positive failure indication. The BMU can then disable the battery or implement other verification steps before disabling the battery, as desired.

摘要翻译： 公开了一种用于通过测量输入充电电压和相关系统来验证智能电池的充电故障的方法和相关系统。 在一个实施例中，通过利用模数（A / D）端口测量输入充电电压来确定充电电流是否表示电池故障。 只要测量的输入充电电压低于电池组电压或某个设定电压值（以较高者为准），则BMU认为充电电流检测为假故障指示。 如果测量的充电电压高于电池组电压和设定电压值，则BMU认为充电电流检测为正故障指示。 根据需要，BMU可以在禁用电池之前禁用电池或实施其他验证步骤。

公开(公告)号：US20060139010A1

公开(公告)日：2006-06-29

申请号：US11021377

申请日：2004-12-23

申请人： Ligong Wang ,  Guangyong Zhu

发明人： Ligong Wang ,  Guangyong Zhu

IPC分类号： H02J7/00

CPC分类号： H02J7/0047 ,  G01R31/3624 ,  H02J7/0031

摘要： A method and associated system are disclosed for verifying charging failures for smart batteries by measuring input charging voltage and associated systems. In one embodiment, a determination is made whether or not a charging current is indicative of a battery failure by utilizing an analog-to-digital (A/D) port to measure the input charging voltage. As long as the measured input charging voltage is below the cell pack voltage or some set voltage value, whichever is higher, the BMU considers a charging current detection to be a false failure indication. If the measured charging voltage is above the cell pack voltage or a set voltage value, whichever is lower, the BMU considers the charging current detection to be a positive failure indication. The BMU can then disable the battery or implement other verification steps before disabling the battery, as desired.

公开(公告)号：US08847874B2

公开(公告)日：2014-09-30

申请号：US11843730

申请日：2007-08-23

申请人： Erin L. Price ,  Guangyong Zhu ,  John Matthew Knadler, IV

发明人： Erin L. Price ,  Guangyong Zhu ,  John Matthew Knadler, IV

IPC分类号： G09G3/36 ,  G09G3/32 ,  H05B33/08

CPC分类号： H05B33/0851 ,  H05B33/0815 ,  H05B33/0818 ,  Y02B20/346

摘要： An information handling system display backlight illuminates an image with plural strings of LEDs driven by a backlight driver integrated circuit with pulse width modulation. A string detection module detects the number of active LED strings and divides the time period by number of active LED strings into an equal number of time delays or shifts so that the backlight driver sequentially turns on an LED string at a predetermined time period. The active number of LED strings is detected by reading a total number of LED strings from a management interface and subtracting from the total number any detected failed LED strings or any LED strings powered down to reduce power consumption.

摘要翻译： 信息处理系统显示器背光照明由具有脉冲宽度调制的背光驱动器集成电路驱动的多串LED的图像。 字符串检测模块检测有源LED串的数量，并将时间段数量与有效LED串的数量进行相等的时间延迟或移位，使得背光驱动器在预定时间段内顺序地接通LED串。 通过从管理接口读取总数量的LED串来检测LED串的有效数量，并且从总数中减去任何检测到的失败的LED串或任何掉电的LED串以降低功耗。

公开(公告)号：US07755215B2

公开(公告)日：2010-07-13

申请号：US11741202

申请日：2007-04-27

申请人： Guangyong Zhu ,  John J. Breen ,  Shiguo Luo

发明人： Guangyong Zhu ,  John J. Breen ,  Shiguo Luo

IPC分类号： H02J1/00 ,  H02J9/04

CPC分类号： H02J1/08 ,  H02J1/14 ,  H02J2001/008 ,  Y10T307/549 ,  Y10T307/587 ,  Y10T307/696 ,  Y10T307/707 ,  Y10T307/724 ,  Y10T307/729

摘要： A method and circuit to output adaptive drive voltages within information handling systems is disclosed. According to one aspect of the disclosure, a method of outputting power within an information handling system can include sensing a load current of a power output stage operable to employ more than one drive voltage level. The method can also include comparing the load current to a threshold current setting, and selecting a first output drive voltage from a plurality of input drive voltages in response to comparing the load current to the threshold current setting. The method can also include coupling the first output drive voltage to the power output stage.

摘要翻译： 公开了一种在信息处理系统内输出自适应驱动电压的方法和电路。 根据本公开的一个方面，在信息处理系统内输出功率的方法可以包括感测可操作以使用多于一个驱动电压电平的功率输出级的负载电流。 该方法还可以包括将负载电流与阈值电流设置进行比较，以及响应于将负载电流与阈值电流设置进行比较，从多个输入驱动电压中选择第一输出驱动电压。 该方法还可以包括将第一输出驱动电压耦合到功率输出级。

公开(公告)号：US07619392B2

公开(公告)日：2009-11-17

申请号：US12380613

申请日：2009-03-02

申请人： Ligong Wang ,  Guangyong Zhu

发明人： Ligong Wang ,  Guangyong Zhu

IPC分类号： H02J7/00

CPC分类号： H02J7/0047 ,  G01R31/3624 ,  H02J7/0031

摘要： A method and associated system are disclosed for verifying charging failures for smart batteries by measuring input charging voltage and associated systems. In one embodiment, a determination is made whether or not a charging current is indicative of a battery failure by utilizing an analog-to-digital (A/D) port to measure the input charging voltage. As long as the measured input charging voltage is below the cell pack voltage or some set voltage value, whichever is higher, the BMU considers a charging current detection to be a false failure indication. If the measured charging voltage is above the cell pack voltage or a set voltage value, whichever is lower, the BMU considers the charging current detection to be a positive failure indication. The BMU can then disable the battery or implement other verification steps before disabling the battery, as desired.