公开(公告)号：US07358710B2

公开(公告)日：2008-04-15

申请号：US11406487

申请日：2006-04-18

申请人： Shiguo Luo ,  Zhihong Ye ,  Guangyong Zhu

发明人： Shiguo Luo ,  Zhihong Ye ,  Guangyong Zhu

IPC分类号： G05F1/40

CPC分类号： H02M3/1588 ,  H02M2001/0009 ,  Y02B70/1466

摘要： A resister network having a negative temperature coefficient (NTC) may be utilized to create a temperature compensated equivalent resistance “R” for a current sensing RC network used in measuring inductor current of a DC-to-DC converter or a general switching regulator that needs to use inductor current as a control signal. The NTC resistor of the RC network effectively compensates for the positive temperature coefficient of the switching regulator inductor's inherent DC resistance (DCR). Keeping the time constants of the RC network and the switching regulator inductor substantially matched improves operation of cycle by cycle based control modes such as peak current sensing by the switching regulator controller in performing peak current control for the DC-to-DC converter.

摘要翻译： 可以使用具有负温度系数（NTC）的电阻网络来为用于测量DC-DC转换器的电感电流或需要的一般开关调节器的电流感测RC网络产生温度补偿的等效电阻“R” 使用电感电流作为控制信号。 RC网络的NTC电阻有效地补偿了开关稳压器电感的固有直流电阻（DCR）的正温度系数。 保持RC网络和开关稳压器电感器的时间常数基本匹配，可以提高逐周期控制模式的运行，如开关稳压器控制器对DC-DC转换器进行峰值电流控制时的峰值电流检测。

公开(公告)号：US20070241727A1

公开(公告)日：2007-10-18

申请号：US11406487

申请日：2006-04-18

申请人： Shiguo Luo ,  Zhihong Ye ,  Guangyong Zhu

发明人： Shiguo Luo ,  Zhihong Ye ,  Guangyong Zhu

IPC分类号： G05F1/00

CPC分类号： H02M3/1588 ,  H02M2001/0009 ,  Y02B70/1466

摘要： A resister network having a negative temperature coefficient (NTC) may be utilized to create a temperature compensated equivalent resistance “R” for a current sensing RC network used in measuring inductor current of a DC-to-DC converter or a general switching regulator that needs to use inductor current as a control signal. The NTC resistor of the RC network effectively compensates for the positive temperature coefficient of the switching regulator inductor's inherent DC resistance (DCR). Keeping the time constants of the RC network and the switching regulator inductor substantially matched improves operation of cycle by cycle based control modes such as peak current sensing by the switching regulator controller in performing peak current control for the DC-to-DC converter.

摘要翻译： 可以使用具有负温度系数（NTC）的电阻网络来为用于测量DC-DC转换器的电感电流或需要的一般开关调节器的电流感测RC网络产生温度补偿的等效电阻“R” 使用电感电流作为控制信号。 RC网络的NTC电阻有效地补偿了开关稳压器电感的固有直流电阻（DCR）的正温度系数。 保持RC网络和开关稳压器电感器的时间常数基本匹配，可以提高逐周期控制模式的运行，如开关稳压器控制器对DC-DC转换器进行峰值电流控制时的峰值电流检测。

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：US07352159B2

公开(公告)日：2008-04-01

申请号：US11112250

申请日：2005-04-22

申请人： Shiguo Luo ,  Leszek Brukwicz ,  Merle Wood ,  Guangyong Zhu

发明人： Shiguo Luo ,  Leszek Brukwicz ,  Merle Wood ,  Guangyong Zhu

IPC分类号： G05F1/40

CPC分类号： H02M3/157 ,  H02M1/32

摘要： A synchronous Buck voltage regulator accepts an input voltage to provide a regulated output voltage to an information handling system processing component, such as a CPU. Input voltage is regulated by a control MOSFET, a synchronous MOSFET and a regulator controller that controls the output by controlling the control and synchronous MOSFETs. The synchronous MOSFET handles overvoltage events output from the control MOSFET by interfacing an inductor-capacitor tank circuit to reduce the overvoltage. A negative voltage protection MOSFET driver associated with the regulator controller monitors for negative voltage events that result from the interfacing of the inductor-capacitor tank circuit and selectively decouples the inductor-capacitor tank circuit if the negative voltage event is associated with a predetermined condition. The negative voltage protection MOSFET driver maintains the interface of the inductor-capacitor tank circuit if the overvoltage event is associated with a failed control MOSFET.

摘要翻译： 同步降压稳压器接受输入电压以向诸如CPU的信息处理系统处理组件提供稳定的输出电压。 输入电压由控制MOSFET，同步MOSFET和调节器控制器进行调节，控制器通过控制和同步MOSFET来控制输出。 同步MOSFET通过连接电感器电容器电路来减少过电压来控制从控制MOSFET输出的过电压事件。 与调节器控制器相关联的负电压保护MOSFET驱动器监视由电感器 - 电容器箱电路的接口产生的负电压事件，并且如果负电压事件与预定条件相关联则选择性地分离电感器 - 电容器电路。 如果过电压事件与故障控制MOSFET相关联，负电压保护MOSFET驱动器保持电感 - 电容器电路的接口。

公开(公告)号：US20080265683A1

公开(公告)日：2008-10-30

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

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：US20060238181A1

公开(公告)日：2006-10-26

申请号：US11112250

申请日：2005-04-22

申请人： Shiguo Luo ,  Leszek Brukwicz ,  Merle Wood ,  Guangyong Zhu

发明人： Shiguo Luo ,  Leszek Brukwicz ,  Merle Wood ,  Guangyong Zhu

IPC分类号： G05F1/00

CPC分类号： H02M3/157 ,  H02M1/32

摘要： A synchronous Buck voltage regulator accepts an input voltage to provide a regulated output voltage to an information handling system processing component, such as a CPU. Input voltage is regulated by a control MOSFET, a synchronous MOSFET and a regulator controller that controls the output by controlling the control and synchronous MOSFETs. The synchronous MOSFET handles overvoltage events output from the control MOSFET by interfacing an inductor-capacitor tank circuit to reduce the overvoltage. A negative voltage protection MOSFET driver associated with the regulator controller monitors for negative voltage events that result from the interfacing of the inductor-capacitor tank circuit and selectively decouples the inductor-capacitor tank circuit if the negative voltage event is associated with a predetermined condition. The negative voltage protection MOSFET driver maintains the interface of the inductor-capacitor tank circuit if the overvoltage event is associated with a failed control MOSFET.

摘要翻译： 同步降压稳压器接受输入电压以向诸如CPU的信息处理系统处理组件提供稳定的输出电压。 输入电压由控制MOSFET，同步MOSFET和调节器控制器进行调节，控制器通过控制和同步MOSFET来控制输出。 同步MOSFET通过连接电感器电容器电路来减少过电压来控制从控制MOSFET输出的过电压事件。 与调节器控制器相关联的负电压保护MOSFET驱动器监视由电感器 - 电容器箱电路的接口产生的负电压事件，并且如果负电压事件与预定条件相关联，则选择性地去耦合电感器 - 电容器电路。 如果过电压事件与故障控制MOSFET相关联，负电压保护MOSFET驱动器保持电感 - 电容器电路的接口。

公开(公告)号：US09678555B2

公开(公告)日：2017-06-13

申请号：US14470217

申请日：2014-08-27

申请人： Shiguo Luo ,  Kejiu Zhang ,  Hang Li ,  John J. Breen

发明人： Shiguo Luo ,  Kejiu Zhang ,  Hang Li ,  John J. Breen

IPC分类号： G06F12/00 ,  G06F1/28 ,  G06F12/02

CPC分类号： G06F1/28 ,  G06F12/0238 ,  G06F12/0246 ,  Y02D10/13

摘要： Methods and systems are disclosed that may be employed to enable multi-phase voltage regulator (VR) system calibration during the development phase of a multi-phase VR system so as to meet defined accuracy targets and, in one example, to avoid the need for system level calibration in a production environment. The disclosed systems and methods may be further implemented to enable use of multiple sources for and types of integrated power stages (IPstages) in a common multi-phase VR system configuration while still achieving the required current sense accuracy, thus reducing or substantially eliminating continuity of supply (COS) concerns.

公开(公告)号：US20150372597A1

公开(公告)日：2015-12-24

申请号：US14470344

申请日：2014-08-27

申请人： Shiguo Luo ,  Kejiu Zhang ,  Hang Li

发明人： Shiguo Luo ,  Kejiu Zhang ,  Hang Li

IPC分类号： H02M3/158

CPC分类号： H02M3/157 ,  G06F1/26 ,  G06F1/32 ,  G06F1/3206 ,  H02M1/36 ,  H02M3/1584 ,  H02M3/1588 ,  H02M2001/0006 ,  H02M2001/0032 ,  H02M2003/1586 ,  Y02B70/1466 ,  Y02B70/16

摘要： Methods and systems are disclosed that may be employed to improve efficiency of smart integrated power stages (IPstages) of multi-phase VR systems while operating under relatively light, ultra-light, or partial or reduced loads. The disclosed methods and systems may be implemented to improve VR system light load efficiency by providing and enabling reduced power IPstage operating modes in one or more smart IPstage/s of a VR system, and by enabling state transition between IPstage active and reduced power operating modes such as IPstage standby and IPstage hibernation modes.

摘要翻译： 公开了可用于提高多相VR系统的智能集成功率级（IP级）的效率的方法和系统，同时在相对较轻，超轻或部分或减少的负载下工作。 可以实现所公开的方法和系统，以通过在VR系统的一个或多个智能IP阶段中提供并实现降低功率的IPstage操作模式，并且通过使得能够在IPstage活动和降低功率操作模式之间进行状态转换来提高VR系统轻负载效率 如IPstage待机和IPstage休眠模式。

公开(公告)号：US07999520B2

公开(公告)日：2011-08-16

申请号：US12148830

申请日：2008-04-23

申请人： Shiguo Luo ,  John J. Breen ,  Hongtao Zhao

发明人： Shiguo Luo ,  John J. Breen ,  Hongtao Zhao

IPC分类号： G05F1/577

CPC分类号： H02J1/102

摘要： Systems and methods are disclosed that provide static phase shedding techniques to improve the efficiency of multi-phase voltage regulators within information handling systems by selecting the number of active phases for the multi-phase voltage regulators using circuit identifiers (IDs) for circuitry configured to be powered by the multi-phase voltage regulators, such as central processing units (CPUs). In one embodiment, processor identifier information related to installed CPUs is used to control the voltage regulator (VR) phase number to provide static phase shedding. This VR control can be implemented in a variety of ways, including the use of conventional analog multi-phase VR controllers and/or digital VR controllers. Dynamic phase shedding can also be used in conjunction with this static phase shedding to further reduce the number of active phases when a processor operates in a low power mode.

摘要翻译： 公开了提供静态相位脱落技术以提高信息处理系统内的多相电压调节器的效率的系统和方法，通过使用电路标识符（ID）来选择多相电压调节器的有源相位数，该电路标识符（ID）被配置为 由多相电压调节器（如中央处理单元（CPU））供电。 在一个实施例中，与安装的CPU相关的处理器标识符信息用于控制电压调节器（VR）相位数以提供静态相位脱落。 该VR控制可以以各种方式实现，包括使用传统的模拟多相VR控制器和/或数字VR控制器。 动态相位脱落还可以与该静态相位脱落结合使用，以在处理器以低功率模式操作时进一步减少有效相位的数量。

公开(公告)号：US20100250973A1

公开(公告)日：2010-09-30

申请号：US12416101

申请日：2009-03-31

申请人： John J. Breen, III ,  Scott Michael Ramsey ,  Timothy Thompson ,  Shiguo Luo

发明人： John J. Breen, III ,  Scott Michael Ramsey ,  Timothy Thompson ,  Shiguo Luo

IPC分类号： G06F1/26

CPC分类号： G06F1/30 ,  G06F1/28

摘要： An information handling system (IHS) is disclosed providing a power supply operable to provide an output current to the IHS during power initiation. The IHS may also include a first power component associated with a first power stage wherein the first power stage may have a first current threshold. Furthermore, the IHS may include a power control logic coupled to the power supply and the first power component. As such, the power control logic may be operable to communicate the first power stage to the power supply, and if the output current does not exceed the first current threshold during the first power stage, the power control logic may be operable to communicate a second power stage having a second current threshold to the power supply.

摘要翻译： 公开了一种信息处理系统（IHS），其提供可操作以在启动期间向IHS提供输出电流的电源。 IHS还可以包括与第一功率级相关联的第一功率分量，其中第一功率级可以具有第一电流阈值。 此外，IHS可以包括耦合到电源和第一功率部件的功率控制逻辑。 因此，功率控制逻辑可以可操作以将第一功率级传送到电源，并且如果在第一功率级期间输出电流不超过第一电流阈值，则功率控制逻辑可操作以通信第二功率级 功率级具有对电源的第二电流阈值。