公开(公告)号：US20110109346A1

公开(公告)日：2011-05-12

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： G01R19/00

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。

公开(公告)号：US07560872B2

公开(公告)日：2009-07-14

申请号：US11175486

申请日：2005-07-06

申请人： Robert L. Lyle, Jr. ,  Steven P. Laur ,  Zaki Moussaoui

发明人： Robert L. Lyle, Jr. ,  Steven P. Laur ,  Zaki Moussaoui

IPC分类号： H05B37/02 ,  H05B37/00 ,  H05B41/16

CPC分类号： H05B41/3927 ,  H05B41/2828

摘要： A phase-modulated, double-ended, half-bridge topology-based DC-AC converter supplies AC power to a load, such as a cold cathode fluorescent lamp used to back-light a liquid crystal display. First and second converter stages generate respective first and second sinusoidal voltages having the same frequency and amplitude, but having a controlled phase difference therebetween. By employing a voltage controlled delay circuit to control the phase difference between the first and second sinusoidal voltages, the converter is able to vary the amplitude of the composite voltage differential produced across the opposite ends of the load.

摘要翻译： 一个基于相位调制，双端，半桥拓扑的DC-AC转换器为负载供电，如用于背光液晶显示器的冷阴极荧光灯。 第一和第二转换器级产生具有相同频率和幅度的相应的第一和第二正弦电压，但是它们之间具有受控的相位差。 通过采用电压控制延迟电路来控制第一和第二正弦电压之间的相位差，转换器能够改变在负载的相对端产生的复合电压差的振幅。

公开(公告)号：US07368880B2

公开(公告)日：2008-05-06

申请号：US11046976

申请日：2005-01-31

申请人： Robert L. Lyle, Jr. ,  Steven P. Laur ,  Zaki Moussaoui

发明人： Robert L. Lyle, Jr. ,  Steven P. Laur ,  Zaki Moussaoui

IPC分类号： H05B41/16

CPC分类号： H05B41/2824 ,  H05B41/3927

摘要： A double-ended, DC-AC converter supplies AC power to a load, such as a cold cathode fluorescent lamp used to back-light a liquid crystal display. First and second converter stages generate respective first and second sinusoidal voltages having the same frequency and amplitude, but having a controlled phase difference therebetween. By employing a voltage controlled delay circuit to control the phase difference between the first and second sinusoidal voltages, the converter is able to vary the amplitude of the composite voltage differential produced across the opposite ends of the load. The converter may be either voltage fed or current fed.

摘要翻译： 双端DC-AC转换器为负载提供交流电源，例如用于背光液晶显示器的冷阴极荧光灯。 第一和第二转换器级产生具有相同频率和幅度的相应的第一和第二正弦电压，但是它们之间具有受控的相位差。 通过采用电压控制延迟电路来控制第一和第二正弦电压之间的相位差，转换器能够改变在负载的相对端产生的复合电压差的振幅。 转换器可以是电压馈送或电流馈送。

公开(公告)号：US07054176B2

公开(公告)日：2006-05-30

申请号：US11047154

申请日：2005-01-31

申请人： Zaki Moussaoui ,  Thomas Victorin

发明人： Zaki Moussaoui ,  Thomas Victorin

IPC分类号： H02M7/48

CPC分类号： H02M7/538 ,  H02M7/4826 ,  H02M2007/4815 ,  Y02B70/1441

摘要： A multi-stage, push-pull driven, resonant DC-AC converter ties the center-taps of primary windings of respective push-pull stages together, and drives each center-tap with a current source. Tying the center-taps of the primary windings of the respective DC-AC converters' transformers together forces the voltages at these locations to be the same, so as to achieve mutual resonant synchronization between the two stages. Connecting the center-taps to a current source provides the necessary power for each stage and allows for a variation in current between stages, as the center-tap voltages track one another. The tied-together center-tap voltage is monitored to obtain the zero voltage switching required for efficient operation of switching devices of each DC-AC converter stage.

摘要翻译： 多级推挽驱动谐振DC-AC转换器将各推挽级的初级绕组的中心抽头连接在一起，并用电流源驱动每个中心抽头。 将各个DC-AC转换器的变压器的初级绕组的中心抽头捆绑在一起迫使这些位置处的电压相同，以便实现两个级之间的相互谐振同步。 将中心抽头连接到电流源为每个级提供必要的功率，并允许级间之间的电流变化，因为中心抽头电压彼此跟踪。 监控并联的中心抽头电压，以获得每个DC-AC转换器级的开关器件有效运行所需的零电压开关。

公开(公告)号：US07038432B2

公开(公告)日：2006-05-02

申请号：US10827200

申请日：2004-04-19

申请人： Zaki Moussaoui

发明人： Zaki Moussaoui

IPC分类号： G05F1/56 ,  G05F1/44 ,  G05F1/40 ,  G05F1/618

CPC分类号： G05B13/048 ,  H02M3/156

摘要： A linear predictive system for a DC—DC converter including a linear predictive controller, first and second adders and a multiplier. The DC—DC converter generates an output signal and includes a digital compensation block that converts a feedback error signal into a main duty cycle signal. The linear predictive controller predicts linear changes of the main duty cycle signal in response to changes of the output signal and provides a predictive duty cycle signal. The first adder subtracts the predictive duty cycle signal from the main duty cycle signal to provide a duty cycle delta. The multiplier multiplies the duty cycle delta by a gain factor to provide a duty cycle delta sample. The second adder adds the duty cycle delta sample to the first duty cycle signal to generate an adjusted duty cycle signal. The linear predictive controller performs an inverse function of DC—DC conversion approximated to the first order

摘要翻译： 一种用于包括线性预测控制器，第一和第二加法器和乘法器的DC-DC转换器的线性预测系统。 DC-DC转换器产生输出信号并且包括将反馈误差信号转换成主占空比信号的数字补偿块。 线性预测控制器响应于输出信号的变化预测主占空比信号的线性变化，并提供预测占空比信号。 第一加法器从主占空比信号中减去预测占空比信号以提供占空比增量。 乘法器将占空比增量乘以增益因子以提供占空比增量采样。 第二加法器将占空比增量采样与第一占空比信号相加，以产生经调整的占空比信号。 线性预测控制器执行近似于一阶的DC-DC转换的逆函数

公开(公告)号：US20130141070A1

公开(公告)日：2013-06-06

申请号：US13427224

申请日：2012-03-22

申请人： Andrew D. Goessling ,  Weihong Qiu ,  Zaki Moussaoui

发明人： Andrew D. Goessling ,  Weihong Qiu ,  Zaki Moussaoui

IPC分类号： G05F1/10

CPC分类号： H02M3/156 ,  H02J7/0072 ,  H02J7/022 ,  H02M1/10 ,  H02M3/1582

摘要： A control system and method for a shared inductor regulator. The regulator includes an inductor and multiple switches to selectively couple the inductor to output, reference and charge nodes. The charge node may be coupled to a battery. An input switch may be included to selectively couple the inductor to a source node. A controller controls the switches to regulate output voltage, charge current, and a source voltage when provided. The inductor current is sensed and used to regulate the output voltage, and to regulate either the charge current or the input voltage. When an external source provides sufficient power, the charging current is regulated. When the source reaches a maximum power set point, the input voltage is maintained at a minimum level. When the source provides insufficient power, the battery is used to add power or to provide sole power.

摘要翻译： 一种用于共享电感调节器的控制系统和方法。 调节器包括电感器和多个开关，用于选择性地将电感器耦合到输出，参考和充电节点。 充电节点可以耦合到电池。 可以包括输入开关以选择性地将电感器耦合到源节点。 控制器控制开关调节输出电压，充电电流和源极电压。 电感电流被感测并用于调节输出电压，并调节充电电流或输入电压。 当外部源提供足够的功率时，充电电流被调节。 当源达到最大功率设定点时，输入电压保持在最小电平。 当电源供电不足时，电池用于增加电力或提供唯一的电力。

公开(公告)号：US08378649B2

公开(公告)日：2013-02-19

申请号：US12558035

申请日：2009-09-11

申请人： Zaki Moussaoui

发明人： Zaki Moussaoui

IPC分类号： G05F1/40

CPC分类号： H02M3/1588 ,  H02M1/36 ,  Y02B70/1466

摘要： A voltage regulator includes an upper switching transistor connected between an input voltage node and a phase node. A lower switching transistor is connected between the phase node and ground. An output filter is connected between the phase node and an output voltage node. A PWM control circuit generates an PWM control signal responsive to a feedback voltage. An upper gate control circuit controls operation of the upper switching transistor responsive to the PWM control signal. A lower gate control circuit controls operation of the lower switching transistor responsive to the PWM control signal and a ramp voltage signal. The lower gate control circuit linearly increases a lower gate control signal from 0 to (1-D), where D=the duty cycle, to transition the voltage regulator for diode emulation mode of operation to synchronous mode of operation responsive to a first pulse in the PWM control signal.

摘要翻译： 电压调节器包括连接在输入电压节点和相位节点之间的上部开关晶体管。 下开关晶体管连接在相位节点和地之间。 输出滤波器连接在相位节点和输出电压节点之间。 PWM控制电路根据反馈电压产生PWM控制信号。 上门控制电路响应PWM控制信号控制上开关晶体管的工作。 下门控制电路根据PWM控制信号和斜坡电压信号控制下开关晶体管的工作。 下栅极控制电路将栅极控制信号从0线性地增加到（1-D），其中D =占空比，将二极管仿真模式的电压调节器转换为响应于第一脉冲的同步工作模式 PWM控制信号。

公开(公告)号：US20100085027A1

公开(公告)日：2010-04-08

申请号：US12429241

申请日：2009-04-24

申请人： Zaki Moussaoui

发明人： Zaki Moussaoui

IPC分类号： G05F1/10

CPC分类号： H02M3/1582

摘要： A voltage regulator, comprising first circuitry for generating an output voltage responsive to an input voltage and a plurality of switching control signal. Switching control circuitry generates the switching control signals responsive to the output voltage and at least one of a buck ramp signal and a boost ramp signal. Voltage ramp generation circuitry generates each of the buck ramp signal and the boost ramp signal. The boost ramp signal comprises the buck ramp signal offset by the peak value of the buck ramp signal.

摘要翻译： 一种电压调节器，包括用于响应于输入电压产生输出电压的第一电路和多个开关控制信号。 开关控制电路响应于输出电压和降压斜坡信号和升压斜坡信号中的至少一个产生开关控制信号。 电压斜坡发生电路产生每个降压斜坡信号和升压斜坡信号。 升压斜坡信号包括由降压斜坡信号的峰值偏移的降压斜坡信号。

公开(公告)号：US07564193B2

公开(公告)日：2009-07-21

申请号：US11175488

申请日：2005-07-06

申请人： Robert L. Lyle, Jr. ,  Steven P. Laur ,  Zaki Moussaoui

发明人： Robert L. Lyle, Jr. ,  Steven P. Laur ,  Zaki Moussaoui

IPC分类号： H05B41/24

CPC分类号： H05B41/2828 ,  H05B41/3927

摘要： A phase-modulated, double-ended, full-bridge topology-based DC-AC converter supplies AC power to a load, such as a cold cathode fluorescent lamp used to back-light a liquid crystal display. First and second converter stages generate respective first and second sinusoidal voltages having the same frequency and amplitude, but having a controlled phase difference therebetween. By employing a voltage controlled delay circuit to control the phase difference between the first and second sinusoidal voltages, the converter is able to vary the amplitude of the composite voltage differential produced across the opposite ends of the load.

摘要翻译： 一个基于相位调制，双端，全桥拓扑的DC-AC转换器为负载供电，如用于背光液晶显示器的冷阴极荧光灯。 第一和第二转换器级产生具有相同频率和幅度的相应的第一和第二正弦电压，但是它们之间具有受控的相位差。 通过采用电压控制延迟电路来控制第一和第二正弦电压之间的相位差，转换器能够改变在负载的相对端产生的复合电压差的振幅。

公开(公告)号：US07282896B2

公开(公告)日：2007-10-16

申请号：US10961950

申请日：2004-10-07

申请人： Zaki Moussaoui ,  Brian L. Allen ,  Larry G. Pearce

发明人： Zaki Moussaoui ,  Brian L. Allen ,  Larry G. Pearce

IPC分类号： G05F1/40

CPC分类号： H02M3/1584

摘要： A current-sharing multiphase sliding-mode switching power supply (24) and method of operation are presented. A bipolar power source (22) is coupled to a switch (30) for each phase (28), each switch (30) is in turn coupled to an inductance (32), and a capacitance (36) is coupled to the inductances (32) and across a load (26). A sliding-surface generator (78) generates a sliding surface (σ). A current-balance control (80) computes a reference current as a summary statistic (IX) of inductive currents (IL) through the inductances (32), calculates an error current (IE) for each phase (28) as a difference between the summary statistic (IX) and the inductive current (IL), and adjusts the sliding surface (σ) for each phase (28) so that all inductive currents (IL) are substantially equal to the summary statistic (IX). A switching circuit (138) switches the switches (30) in response to the sliding surface (σ).

摘要翻译： 提出了一种分流多相滑模开关电源（24）及其运行方法。 双极电源（22）耦合到用于每相（28）的开关（30），每个开关（30）又耦合到电感（32），并且电容（36）耦合到电感（ 32）和穿过负载（26）。 滑动表面发生器（78）产生滑动表面（sigma）。 电流平衡控制（80）通过电感（32）计算参考电流作为电感电流（I SUB）的概要统计量（I SUB>），计算出 作为概要统计量（I SUB）与感应电流（I SUB）之间的差异的每相（28）的误差电流（I SUB） >），并且调整每个相位（28）的滑动面（sigma），使得所有感应电流（I L L L）基本上等于总结统计量（I < ）。 开关电路（138）响应于滑动表面（sigma）而切换开关（30）。