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51. 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。

52. 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。

53. 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。

54. 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。

55. 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。

56. 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。

57. 发明申请

US20110109284A1 SYSTEM AND METHOD FOR EQUALIZING THE SMALL SIGNAL RESPONSE OF VARIABLE PHASE VOLTAGE REGULATORS 有权
标题翻译：用于均衡可变相电压调节器的小信号响应的系统和方法
公开(公告)号：US20110109284A1
公开(公告)日：2011-05-12
申请号：US12761914
申请日：2010-04-16
申请人： M. Jason Houston , Bogdan M. Duduman , Weihong Qiu
发明人： M. Jason Houston , Bogdan M. Duduman , Weihong Qiu
IPC分类号： G05F1/618
CPC分类号： H04L25/0272 , H02M3/1584 , H04L25/4902
摘要： A control circuit for a variable phase voltage regulator comprises an error amplifier to generate a difference signal based on a difference between a reference voltage and a signal representative of a voltage at an output node of the variable phase voltage regulator. The control circuit also comprises a variable phase compensator to amplify the difference signal to produce a modified difference signal to compensate for effects of varying the number of active phases in the variable phase voltage regulator, wherein the amplification is proportional to a ratio of total number of phases in the variable phase voltage regulator to number of active phases in the variable phase voltage regulator.
摘要翻译：用于可变相位调压器的控制电路包括误差放大器，用于基于参考电压和表示可变相位电压调节器的输出节点处的电压的信号之间的差产生差分信号。控制电路还包括可变相位补偿器，用于放大差分信号以产生修改的差分信号，以补偿在可变相电压调节器中改变有效相数量的影响，其中放大与总数可变相电压调节器中的相位可变相电压调节器中的有效相数。

58. 发明申请

US20110062926A1 SYSTEM AND METHOD FOR CONTROLLING A VOLTAGE SUPPLY 失效
标题翻译：用于控制电压供应的系统和方法
公开(公告)号：US20110062926A1
公开(公告)日：2011-03-17
申请号：US12876299
申请日：2010-09-07
申请人： Weihong Qiu , Jun Liu , Shangyang Xiao
发明人： Weihong Qiu , Jun Liu , Shangyang Xiao
IPC分类号： G05F1/10
CPC分类号： H02M3/1588 , H02M2001/0032 , Y02B70/1466 , Y02B70/16
摘要： A system, voltage supply circuit, control unit for a voltage supply circuit, and method of controlling a voltage supply circuit are disclosed. For example, a system is disclosed that comprises at least one electronic circuit and a voltage supply unit coupled to an input of the at least one electronic circuit. The voltage supply unit includes a power unit to supply a voltage to the at least one electronic circuit and a control unit to control an operating mode of the power unit, an output of the control unit coupled to an input of the power unit. The control unit includes a mode selector to select the operating mode of the power unit, coupled to at least a first output of the power unit, an amplifier coupled to the at least a first output of the power unit, a compensation circuit, and a first switching unit coupled to the mode selector and the compensation circuit, to couple the compensation circuit to the amplifier if a selected operating mode of the power unit is a first mode.
摘要翻译：公开了一种系统，电压供应电路，用于电压供应电路的控制单元和控制电压供应电路的方法。例如，公开了一种包括至少一个电子电路和耦合到至少一个电子电路的输入的电压供应单元的系统。电压提供单元包括向至少一个电子电路提供电压的电源单元和用于控制功率单元的操作模式的控制单元，耦合到功率单元的输入的控制单元的输出。控制单元包括模式选择器，用于选择耦合到功率单元的至少第一输出的功率单元的工作模式，耦合到功率单元的至少第一输出的放大器，补偿电路和耦合到模式选择器和补偿电路的第一开关单元，如果功率单元的所选择的操作模式是第一模式，则将补偿电路耦合到放大器。

59. 发明授权

US07847531B2 DC/DC converter with adaptive drive voltage supply 有权
标题翻译：具有自适应驱动电源的DC / DC转换器
公开(公告)号：US07847531B2
公开(公告)日：2010-12-07
申请号：US12563468
申请日：2009-09-21
申请人： Weihong Qiu , Ben Dowlat , Rami Abou-Hamze , Steven Laur
发明人： Weihong Qiu , Ben Dowlat , Rami Abou-Hamze , Steven Laur
IPC分类号： G05F1/56
CPC分类号： H03K17/6871 , H02M3/1588 , H03K17/0822 , Y02B70/1466
摘要： A circuit comprises a first input for receiving a supply voltage and a second input for receiving a sensed current signal from an output of a DC to DC converter. The circuit also includes an output voltage for providing an adjustable drive voltage to a drive circuit. The circuit additionally includes circuitry for adjusting the drive voltage responsive to supply voltage and the sensed current signal.
摘要翻译：电路包括用于接收电源电压的第一输入端和用于从DC至DC转换器的输出端接收感测的电流信号的第二输入端。电路还包括用于向驱动电路提供可调驱动电压的输出电压。电路还包括用于响应于电源电压和所感测的电流信号来调节驱动电压的电路。

60. 发明授权

US07782035B2 Controller and driver communication for switching regulators 有权
标题翻译：用于开关稳压器的控制器和驱动器通信
公开(公告)号：US07782035B2
公开(公告)日：2010-08-24
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： G05F1/40
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。

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