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51. 发明申请

US20090045785A1 SENSING A PHASE-PATH CURRENT IN A MULTIPHASE POWER SUPPLY SUCH AS A COUPLED-INDUCTOR POWER SUPPLY 有权
标题翻译：在多相电源中感测相路径电流作为耦合电源电源
公开(公告)号：US20090045785A1
公开(公告)日：2009-02-19
申请号：US12189112
申请日：2008-08-08
申请人： Shangyang Xiao , Weihong Qiu , Jun Liu
发明人： Shangyang Xiao , Weihong Qiu , Jun Liu
IPC分类号： G05F1/32
CPC分类号： H02M3/1584 , H02M2001/0009
摘要： An embodiment of a power supply includes a supply output node, phase paths, and sensor circuits. The supply output node is operable to carry a regulated output voltage, and each phase path has a respective phase-path non-output node, has a respective phase-path output node coupled to the supply output node, and is operable to carry a respective phase current. And each sensor circuit has a respective sensor node coupled to the phase-path non-output nodes and is operable to generate a respective sense signal that represents the phase current flowing through a respective one of the phase paths. For example, where the phase paths are magnetically coupled to one another, the sensor circuits take into account the portions of the phase currents induced by the magnetic couplings to generate sense signals that more accurately represent the phase currents as compared to conventional sensor circuits.
摘要翻译：电源的实施例包括电源输出节点，相位路径和传感器电路。电源输出节点可操作以承载稳定的输出电压，并且每个相位路径具有相应的相位路径非输出节点，具有耦合到电源输出节点的相应的相位路径输出节点，并且可操作以携带相应的相电流。并且每个传感器电路具有耦合到相位路径非输出节点的相应传感器节点，并且可操作以产生表示流过相应一个相位路径的相电流的相应感测信号。例如，当相位路径彼此磁耦合时，传感器电路考虑到由磁耦合引起的相电流的部分，以产生与常规传感器电路相比更精确地表示相电流的感测信号。

52. 发明授权

US07471133B1 Modulator circuit with linear and non-linear control 失效
标题翻译：具有线性和非线性控制的调制器电路
公开(公告)号：US07471133B1
公开(公告)日：2008-12-30
申请号：US11683215
申请日：2007-03-07
申请人： Zaki Moussaoui , Weihong Qiu
发明人： Zaki Moussaoui , Weihong Qiu
IPC分类号： H03K3/017
CPC分类号： H03K7/08
摘要： A modulator control circuit including a linear control circuit, a non-linear control circuit, and a combiner. The linear control circuit has an input receiving a compensation signal indicative of an output parameter and an output providing a first control signal. The non-linear control circuit has an input receiving the compensation signal and an output providing a second control signal. The non-linear control circuit senses transients of the compensation signal not otherwise detected by the linear control circuit and asserts the second control signal indicative thereof. The combiner combines the first and second control signals to provide a pulse width modulation signal for controlling the output parameter, such as output voltage or the like.
摘要翻译：一种包括线性控制电路，非线性控制电路和组合器的调制器控制电路。线性控制电路具有接收指示输出参数的补偿信号的输入端和提供第一控制信号的输出。非线性控制电路具有接收补偿信号的输入端和提供第二控制信号的输出。非线性控制电路感测线性控制电路未另外检测的补偿信号的瞬变，并且断言指示其的第二控制信号。组合器组合第一和第二控制信号以提供用于控制诸如输出电压等的输出参数的脉宽调制信号。

53. 发明申请

US20080238392A1 CONTROLLER AND DRIVER COMMUNICATION FOR SWITCHING REGULATORS 有权
标题翻译：用于切换调节器的控制器和驱动器通信
公开(公告)号：US20080238392A1
公开(公告)日：2008-10-02
申请号：US11935535
申请日：2007-11-06
申请人： Chun Cheung , Weihong Qiu , Robert Isham
发明人： Chun Cheung , Weihong Qiu , Robert Isham
IPC分类号： G05F1/10 , G05F1/00
CPC分类号： H02M3/1584 , H02M3/1588 , H02M2001/0032 , Y02B70/1466 , Y02B70/16
摘要： Pulse width modulation (PWM) controllers and output stage driver circuits and related methods of communicating switching regulator mode information. The controller includes circuitry that recognizes intervals when the load driven by the regulator is in a low power mode. Responsive to recognizing the low power mode, the controller generates a PWM mode signal having at least three (3) different levels including at least one intermediate level that is coupled to at least one driver. Based on the PWM mode signal, the regulator is switched into a power saving low power operational mode.
摘要翻译：脉冲宽度调制（PWM）控制器和输出级驱动电路以及相关的交流调节器模式信息的方法。控制器包括当由调节器驱动的负载处于低功率模式时识别间隔的电路。响应于识别低功率模式，控制器产生具有至少三（3）个不同电平的PWM模式信号，包括耦合到至少一个驱动器的至少一个中间电平。基于PWM模式信号，调节器切换到省电低功耗工作模式。

54. 发明申请

US20080180077A1 Power-supply control 有权
标题翻译：电源控制
公开(公告)号：US20080180077A1
公开(公告)日：2008-07-31
申请号：US12006726
申请日：2008-01-04
申请人： Weihong Qiu , Shangyang Xiao , Jun Liu
发明人： Weihong Qiu , Shangyang Xiao , Jun Liu
IPC分类号： G05F1/10 , H01F17/04
CPC分类号： G06F1/26 , H01F3/14 , H01F17/04 , H02M3/1584
摘要： An embodiment of a power-supply controller is operable to couple a first node of a first inductor to first and second reference nodes, the first inductor composing a first phase of a power supply and having a second node coupled to an output node of the power supply. The controller is also operable to couple a first node of a second inductor to third and fourth reference nodes, the second inductor composing a second phase of the power supply and having a second node. Furthermore, the controller is operable to uncouple the second node of the second inductor from the output node of the power supply. For example, where the first and second inductors are magnetically coupled, such a controller allows the power supply to operate as an uncoupled-inductor (UI) power supply in one mode, and as a coupled-inductor (CI) power supply in another mode.
摘要翻译：电源控制器的实施例可操作以将第一电感器的第一节点耦合到第一和第二参考节点，第一电感器组成电源的第一相位并且具有耦合到电力的输出节点的第二节点供应。控制器还可操作以将第二电感器的第一节点耦合到第三和第四参考节点，第二电感器组成电源的第二相并具有第二节点。此外，控制器可操作地将第二电感器的第二节点与电源的输出节点断开。例如，在第一和第二电感器被磁耦合的情况下，这种控制器允许电源在一种模式中作为非耦合电感器（UI）电源运行，并且作为另一模式中的耦合电感器（CI）电源。

55. 发明授权

US09564772B2 Charging system with adaptive power management 有权
标题翻译：具有自适应电源管理的充电系统
公开(公告)号：US09564772B2
公开(公告)日：2017-02-07
申请号：US13456187
申请日：2012-04-25
申请人： Weihong Qiu , Xiaozhou Zhou , Jun Liu , Bertram J. Rodgers, III
发明人： Weihong Qiu , Xiaozhou Zhou , Jun Liu , Bertram J. Rodgers, III
IPC分类号： H02J7/00 , H02J7/02 , H02J7/04
CPC分类号： H02J7/022 , H02J7/045
摘要： An embodiment of a charger may include an input, at least one switch having a first node coupled to a reference voltage, a current sensor coupled between the input and a second node of the at least one switch, an output coupled to a third node of the at least one switch, and a charge controller coupled to the input to determine an input voltage, to the current sensor to determine an input current and to control inputs of the at least one switch. The at least one switch may be responsive to control signals supplied by the charge controller to the control inputs thereof to control voltage and current at the output of the charger. The charge controller may be responsive to the input voltage and the input current to produce the control signals in a manner that maximizes electrical power drawn at the input.
摘要翻译：充电器的实施例可以包括输入，具有耦合到参考电压的第一节点的至少一个开关，耦合到所述至少一个开关的输入端和第二节点之间的电流传感器，耦合到所述至少一个开关的第三节点的输出所述至少一个开关以及与所述输入端耦合以确定输入电压的充电控制器，所述电流传感器确定输入电流并控制所述至少一个开关的输入。至少一个开关可以响应于由充电控制器提供给其控制输入的控制信号，以控制充电器输出端的电压和电流。充电控制器可以响应输入电压和输入电流以产生控制信号，使得最大化在输入端的电功率。

56. 发明授权

US08400134B2 Apparatus and methodology for maximum power point tracking for a solar panel 有权
标题翻译：用于太阳能电池板的最大功率点跟踪的装置和方法
公开(公告)号：US08400134B2
公开(公告)日：2013-03-19
申请号：US12716654
申请日：2010-03-03
申请人： Zaki Moussaoui , Weihong Qiu , Jun Liu
发明人： Zaki Moussaoui , Weihong Qiu , Jun Liu
IPC分类号： G05F1/67 , G05F5/00
CPC分类号： H01L31/02021 , G05F1/67 , H02J3/385 , Y02E10/58
摘要： Circuitry and methodology for tracking the maximum power point (MPP) of a solar panel is disclosed. The voltage and current generated by the solar panel are monitored and used to generate a pulse signal for charging a capacitor. The changes in the voltage and current generated by the solar panel are also monitored, and that information is used to generate a pulse signal for discharging the capacitor. The charging and the discharging pulse signals are used to charge and discharge the capacitor. A reference signal indicative of the charge level of the capacitor is generated. As the current and voltage generated by the solar panel approach the maximum power point (MPP), the frequency of the discharging pulse signal becomes progressively higher, so that the capacitor charging occurs in progressively smaller increments. When the MPP is reached, the reference signal level becomes steady because the charge level of the capacitor becomes steady.
摘要翻译：公开了用于跟踪太阳能电池板的最大功率点（MPP）的电路和方法。由太阳能电池板产生的电压和电流被监测并用于产生用于对电容器充电的脉冲信号。还监视太阳能电池板产生的电压和电流的变化，并且该信息用于产生用于放电电容器的脉冲信号。充电和放电脉冲信号用于对电容器进行充电和放电。产生表示电容器的充电电平的参考信号。当太阳能电池板产生的电流和电压接近最大功率点（MPP）时，放电脉冲信号的频率逐渐变高，电容器充电逐渐增加。当达到MPP时，由于电容器的充电电平变得稳定，参考信号电平变得稳定。

57. 发明授权

US08330435B2 Hysteretic controlled buck-boost converter 有权
标题翻译：滞后控制降压 - 升压转换器
公开(公告)号：US08330435B2
公开(公告)日：2012-12-11
申请号：US12903683
申请日：2010-10-13
申请人： Weihong Qiu , Zaki Moussaoui , Jun Liu
发明人： Weihong Qiu , Zaki Moussaoui , Jun Liu
IPC分类号： G05F1/613
CPC分类号： G05F1/613 , H02M3/156 , H02M3/1582
摘要： An apparatus includes a buck boost converter for generating a regulated output voltage responsive to an input voltage. The buck boost converter includes an inductor, a first pair of switching transistors responsive to a first PWM signal and a second pair of switching transistors responsive to a second PWM signal. An error amplifier generates an error voltage responsive to the regulated output voltage and a reference voltage. A control circuit generates the first PWM signal and the second PWM signal responsive to the error voltage and a sensed current voltage responsive to a sensed current through the inductor. The control circuit controls switching of the first pair of switching transistors and the second pair of switching transistors using the first PWM signal and the second PWM signal responsive to the sensed current through the inductor and a plurality of offset error voltages based on the error voltage.
摘要翻译：一种装置包括用于响应于输入电压产生稳定的输出电压的降压升压转换器。降压升压转换器包括电感器，响应于第一PWM信号的第一对开关晶体管和响应于第二PWM信号的第二对开关晶体管。误差放大器响应于调节的输出电压和参考电压产生误差电压。控制电路响应于误差电压产生第一PWM信号和第二PWM信号，响应于通过电感器的感测电流产生感测的电流电压。控制电路响应于通过电感器的感测电流和基于误差电压的多个偏移误差电压来控制第一对开关晶体管和第二对开关晶体管的开关，使用第一PWM信号和第二PWM信号。

58. 发明授权

US08299770B2 Threshold voltage monitoring and control in synchronous power converters 有权
标题翻译：同步电源转换器的阈值电压监控与控制
公开(公告)号：US08299770B2
公开(公告)日：2012-10-30
申请号：US13047065
申请日：2011-03-14
申请人： Weihong Qiu , Noel B. Dequina
发明人： Weihong Qiu , Noel B. Dequina
IPC分类号： G05F1/613 , G05F1/656
CPC分类号： H02M3/1588 , Y02B70/1466
摘要： A method of providing threshold voltage monitoring and control in synchronous power converters is provided. The method includes establishing a threshold voltage level for at least one of a gate drive voltage for an upper and a lower power switch in a synchronous power converter, each threshold voltage level controlling a switching delay time for one of the upper and lower power switches. The method further includes detecting body diode conduction levels for at least one of the upper and lower power switches and adjusting the threshold voltage level for at least one of the upper and lower power switches, based on the detected body diode conduction levels, to fine-tune a body diode conduction time around an equilibrium for the at least one of the upper and lower power switches.
摘要翻译：提供了一种在同步电源转换器中提供阈值电压监测和控制的方法。该方法包括为同步功率转换器中的上电源开关和下电源开关的栅极驱动电压中的至少一个建立阈值电压电平，每个阈值电压电平控制上电源开关和下电源开关之一的开关延迟时间。该方法还包括检测上部和下部功率开关中的至少一个的体二极管导通电平，并且基于检测到的体二极管导通电平调整上和下功率开关中的至少一个的阈值电压电平，调谐体二极管导通时间，围绕上下电源开关中的至少一个的平衡。

59. 发明申请

US20120049826A1 SYSTEM AND METHOD OF ADAPTIVE SLOPE COMPENSATION FOR VOLTAGE REGULATOR WITH CONSTANT ON-TIME CONTROL 审中-公开
标题翻译：具有恒定接通时间控制的电压调节器的自适应斜率补偿系统和方法
公开(公告)号：US20120049826A1
公开(公告)日：2012-03-01
申请号：US13004636
申请日：2011-01-11
申请人： Calvin H. Hsu , Weihong Qiu , Ruchi J. Parikh , Jun Liu
发明人： Calvin H. Hsu , Weihong Qiu , Ruchi J. Parikh , Jun Liu
IPC分类号： G05F1/575
CPC分类号： H02M3/1588 , H02M2001/0022 , Y02B70/1466
摘要： A system and method including providing an error voltage indicative of output voltage error, generating an off ramp voltage while a pulse control signal is turned off and otherwise resetting the off ramp voltage, developing the off ramp voltage to have a slope which is inversely proportional to an off time of the pulse control signal, comparing the off ramp voltage with the error voltage and turning on the pulse control signal when the off ramp voltage compares favorably with the error voltage, generating an on ramp voltage while a pulse control signal is turned on and otherwise resetting the on ramp voltage, developing the on ramp voltage with a slope that is proportional to the input voltage, and comparing the on ramp voltage with the reference voltage and turning off the pulse control signal when the on ramp voltage compares favorably with the reference voltage.
摘要翻译：一种系统和方法，包括提供指示输出电压误差的误差电压，当脉冲控制信号被关断并且否则重置关断斜坡电压时产生截止斜坡电压，使偏移斜坡电压变为具有与脉冲控制信号的关闭时间，将截止斜坡电压与误差电压进行比较，并且当截止斜坡电压与误差电压相比较好时接通脉冲控制信号，同时在脉冲控制信号接通时产生导通斜坡电压否则重置斜坡电压，以与输入电压成比例的斜率开始斜坡电压，并将导通斜坡电压与参考电压进行比较，并在导通斜坡电压与参考电压。

60. 发明申请

US20110163731A1 THRESHOLD VOLTAGE MONITORING AND CONTROL IN SYNCHRONOUS POWER CONVERTERS 有权
标题翻译：同步电源转换器的阈值电压监控与控制
公开(公告)号：US20110163731A1
公开(公告)日：2011-07-07
申请号：US13047065
申请日：2011-03-14
申请人： Weihong Qiu , Noel B. Dequina
发明人： Weihong Qiu , Noel B. Dequina
IPC分类号： G05F1/40
CPC分类号： H02M3/1588 , Y02B70/1466
摘要： A method of providing threshold voltage monitoring and control in synchronous power converters is provided. The method includes establishing a threshold voltage level for at least one of a gate drive voltage for an upper and a lower power switch in a synchronous power converter, each threshold voltage level controlling a switching delay time for one of the upper and lower power switches. The method further includes detecting body diode conduction levels for at least one of the upper and lower power switches and adjusting the threshold voltage level for at least one of the upper and lower power switches, based on the detected body diode conduction levels, to fine-tune a body diode conduction time around an equilibrium for the at least one of the upper and lower power switches.
摘要翻译：提供了一种在同步电源转换器中提供阈值电压监测和控制的方法。该方法包括为同步功率转换器中的上电源开关和下电源开关的栅极驱动电压中的至少一个建立阈值电压电平，每个阈值电压电平控制上电源开关和下电源开关之一的开关延迟时间。该方法还包括检测上部和下部功率开关中的至少一个的体二极管导通电平，并且基于检测到的体二极管导通电平调整上和下功率开关中的至少一个的阈值电压电平，调谐体二极管导通时间，围绕上下电源开关中的至少一个的平衡。

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