Dynamic voltage converter topology switching circuit, system, and method for improving light load efficiency
    51.
    发明申请
    Dynamic voltage converter topology switching circuit, system, and method for improving light load efficiency 审中-公开
    动态电压转换器拓扑切换电路,系统及改善轻载效率的方法

    公开(公告)号:US20080294916A1

    公开(公告)日:2008-11-27

    申请号:US12148787

    申请日:2008-04-21

    申请人: Zaki Moussaoui

    发明人: Zaki Moussaoui

    IPC分类号: G06F1/26 H02M3/157

    摘要: A voltage converter includes a plurality of voltage converter circuits, each voltage converter circuit having a topology, and a control circuit coupled to the voltage converter circuits. The control circuit is operable to select one of the voltage converter circuits to provide an output power on an output node. The control circuit selects one of the voltage converter circuits in response to a parameter associated with the operation of the voltage converter, such as a parameter associated with the output power on the output node.

    摘要翻译: 电压转换器包括多个电压转换器电路,每个电压转换器电路具有拓扑,以及耦合到电压转换器电路的控制电路。 控制电路可操作以选择电压转换器电路中的一个以在输出节点上提供输出功率。 控制电路响应于与电压转换器的操作相关联的参数,例如与输出节点上的输出功率相关联的参数,选择电压转换器电路中的一个。

    Hysteretic power-supply controller with adjustable switching frequency, and related power supply, system, and method
    52.
    发明申请
    Hysteretic power-supply controller with adjustable switching frequency, and related power supply, system, and method 有权
    具有可调开关频率的迟滞电源控制器及相关电源,系统和方法

    公开(公告)号:US20080129264A1

    公开(公告)日:2008-06-05

    申请号:US11897681

    申请日:2007-08-31

    IPC分类号: G05F1/613

    CPC分类号: H02M3/156

    摘要: An embodiment of a hysteretic power-supply controller includes a signal generator, frequency adjuster, and signal combiner. The signal generator is operable to generate a switching signal having a first level in response to a control signal being greater than a first reference value and having a second level in response to the control signal being less than a second reference value, the switching signal having an actual frequency and being operable to drive a switching stage that generates a regulated output signal. The frequency adjuster is operable to generate a frequency-adjust signal that is related to a difference between the actual frequency and a desired frequency. And the signal combiner is operable to generate the control signal from the frequency-adjust signal and the regulated output signal. Such a hysteretic power-supply controller may allow one to set the switching frequency to a desired value independently of the parameters of the power supply.

    摘要翻译: 滞后电源控制器的实施例包括信号发生器,频率调节器和信号组合器。 所述信号发生器可操作以响应于大于第一参考值的控制信号产生具有第一电平的开关信号,并响应于所述控制信号小于第二参考值而具有第二电平,所述开关信号具有 实际频率并且可操作以驱动产生调节输出信号的开关级。 频率调节器可操作以产生与实际频率和期望频率之间的差异相关的频率调整信号。 并且信号组合器可操作以从频率调节信号和调节输出信号产生控制信号。 这种滞后电源控制器可以允许将开关频率设置为独立于电源的参数的期望值。

    Apparatus and method for transient control in a multiphase switching power supply
    53.
    发明授权
    Apparatus and method for transient control in a multiphase switching power supply 失效
    多相开关电源瞬态控制装置及方法

    公开(公告)号:US07282897B2

    公开(公告)日:2007-10-16

    申请号:US10962088

    申请日:2004-10-07

    IPC分类号: G05F1/40

    CPC分类号: H02M3/1584

    摘要: A multiphase sliding-mode switching power supply (24) and a method of operating the power supply (24) are provided. A switch (30) for each phase (28) is coupled to a bipolar power source (22), with each switch (30) effecting one phase (28). An inductance (32) is coupled to each switch (30), and a capacitance (36) is coupled to the inductances (32). A load (26) is coupled across the capacitance (36). A sliding-surface generator (78) is coupled to the monitor circuit (38) and generates a single sliding surface (σ) for all phases (28). A translation circuit (102) is coupled to the sliding-surface generator (78) and configured to translate the sliding surface (σ) into a stream of switching pulses (86). A transient control (52) is coupled to the translation circuit (102) and configured to adjust said stream of switching pulses upon detection of an out-of-range transient. A switching circuit (138) is coupled to the switches (30) and the transient control (52), and switches the switches (30) in response to the stream of switching pulses (86).

    摘要翻译: 提供多相滑模开关电源(24)和操作电源(24)的方法。 每个相(28)的开关(30)耦合到双极电源(22),每个开关(30)实现一相(28)。 电感(32)耦合到每个开关(30),并且电容(36)耦合到电感(32)。 负载(26)跨过电容(36)耦合。 滑动表面发生器(78)耦合到监视器电路(38)并为所有相(28)产生单个滑动表面(sigma)。 平移电路(102)耦合到滑动表面发生器(78)并被配置为将滑动表面(sigma)转换成开关脉冲流(86)。 瞬态控制(52)耦合到平移电路(102)并被配置为在检测到超出范围的瞬变时调节所述开关脉冲流。 开关电路(138)耦合到开关(30)和瞬态控制(52),并且响应于开关脉冲流(86)而切换开关(30)。

    Apparatus and method for fixed-frequency control in a switching power supply
    54.
    发明授权
    Apparatus and method for fixed-frequency control in a switching power supply 失效
    开关电源中固定频率控制的装置和方法

    公开(公告)号:US07230407B2

    公开(公告)日:2007-06-12

    申请号:US11491022

    申请日:2006-07-20

    申请人: Zaki Moussaoui

    发明人: Zaki Moussaoui

    IPC分类号: G05F1/40

    CPC分类号: H02M3/1584

    摘要: A sliding-mode switching power supply (24) having N phases (28) and a method of operating the power supply (24) are provided. N switches (30) are coupled to a bipolar power source (22), with each switch (30) effecting one phase (28). An inductance (32) is coupled to each switch (30), and a capacitance (36) is coupled to the inductances (32). A load (26) is coupled across the capacitance (36). A monitor circuit (38) is coupled to the inductances (32) and the capacitance (36) and configured to monitor currents (IL) through the inductances (32) and/or a voltage (VC) across the capacitance (36). A sliding-surface generator (78) is coupled to the monitor circuit (38) and generates a single sliding surface (σ) for all phases (28). A constant-frequency control (104) forms a variable window (Δσ) for the sliding surface (σ). A switching circuit (138) switches the switches (30) at a switching frequency (fS) determined by the variable window (Δσ). The constant-frequency control (104) adjusts the variable window (Δσ) to maintain the switching frequency (fS) substantially constant.

    摘要翻译: 提供具有N相(28)的滑动模式开关电源(24)和操作电源(24)的方法。 N个开关(30)耦合到双极电源(22),每个开关(30)实现一个相位(28)。 电感(32)耦合到每个开关(30),并且电容(36)耦合到电感(32)。 负载(26)跨过电容(36)耦合。 监视器电路(38)耦合到电感(32)和电容(36),并被配置为通过电感(32)和/或电压(V')来监测电流(I SUB) 跨过电容(36)。 滑动表面发生器(78)耦合到监视器电路(38)并为所有相(28)产生单个滑动表面(sigma)。 恒定频率控制(104)形成用于滑动表面(sigma)的可变窗口(Deltasigma)。 开关电路(138)以由可变窗口(Deltasigma)确定的开关频率(f S S S S S)切换开关(30)。 恒定频率控制(104)调节可变窗口(Deltasigma)以维持开关频率(f SUB S S S)基本上恒定。

    Apparatus and method for fixed-frequency control in a switching power supply
    55.
    发明申请
    Apparatus and method for fixed-frequency control in a switching power supply 失效
    开关电源中固定频率控制的装置和方法

    公开(公告)号:US20060255778A1

    公开(公告)日:2006-11-16

    申请号:US11491022

    申请日:2006-07-20

    申请人: Zaki Moussaoui

    发明人: Zaki Moussaoui

    IPC分类号: G05F1/00

    CPC分类号: H02M3/1584

    摘要: A sliding-mode switching power supply (24) having N phases (28) and a method of operating the power supply (24) are provided. N switches (30) are coupled to a bipolar power source (22), with each switch (30) effecting one phase (28). An inductance (32) is coupled to each switch (30), and a capacitance (36) is coupled to the inductances (32). A load (26) is coupled across the capacitance (36). A monitor circuit (38) is coupled to the inductances (32) and the capacitance (36) and configured to monitor currents (IL) through the inductances (32) and/or a voltage (VC) across the capacitance (36). A sliding-surface generator (78) is coupled to the monitor circuit (38) and generates a single sliding surface (σ) for all phases (28). A constant-frequency control (104) forms a variable window (Δσ) for the sliding surface (σ). A switching circuit (138) switches the switches (30) at a switching frequency (fS) determined by the variable window (Δσ). The constant-frequency control (104) adjusts the variable window (Δσ) to maintain the switching frequency (fS) substantially constant.

    摘要翻译: 提供具有N相(28)的滑动模式开关电源(24)和操作电源(24)的方法。 N个开关(30)耦合到双极电源(22),每个开关(30)实现一个相位(28)。 电感(32)耦合到每个开关(30),并且电容(36)耦合到电感(32)。 负载(26)跨过电容(36)耦合。 监视器电路(38)耦合到电感(32)和电容(36),并被配置为通过电感(32)和/或电压(V')来监测电流(I SUB) 跨过电容(36)。 滑动表面发生器(78)耦合到监视器电路(38)并为所有相(28)产生单个滑动表面(sigma)。 恒定频率控制(104)形成用于滑动表面(sigma)的可变窗口(Deltasigma)。 开关电路(138)以由可变窗口(Deltasigma)确定的开关频率(f S S S S S)切换开关(30)。 恒定频率控制(104)调节可变窗口(Deltasigma)以维持开关频率(f SUB S S S)基本上恒定。

    Multiphase converter with zero voltage switching
    56.
    发明申请
    Multiphase converter with zero voltage switching 有权
    具有零电压开关的多相转换器

    公开(公告)号:US20050156579A1

    公开(公告)日:2005-07-21

    申请号:US10852603

    申请日:2004-05-24

    IPC分类号: H02M3/158 H02M1/12

    摘要: A multiphase DC-to-DC converter includes at least two phase circuits each having upper and lower power switches and a front-end inductor that is operative for forming a resonant tank circuit with the phase circuits to ensure zero voltage switching and minimizing power losses.

    摘要翻译: 多相DC-DC转换器包括至少两个相位电路,每个相电路具有上和下功率开关,前端电感器用于与相电路形成谐振回路以确保零电压切换并最小化功率损耗。

    Linear predictive controller
    57.
    发明申请
    Linear predictive controller 有权
    线性预测控制器

    公开(公告)号:US20050131557A1

    公开(公告)日:2005-06-16

    申请号:US10827200

    申请日:2004-04-19

    申请人: Zaki Moussaoui

    发明人: Zaki Moussaoui

    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

    DC-DC converter having active transient response compensation circuit employing flyback inductor
    58.
    发明授权
    DC-DC converter having active transient response compensation circuit employing flyback inductor 失效
    DC-DC转换器具有采用反激电感的有源瞬变响应补偿电路

    公开(公告)号:US06903914B1

    公开(公告)日:2005-06-07

    申请号:US10725752

    申请日:2003-12-02

    申请人: Zaki Moussaoui

    发明人: Zaki Moussaoui

    IPC分类号: H02M1/34 H02M3/337 H02H7/122

    摘要: A DC-DC converter has an output bus coupled to power a load. A voltage transient compensation circuit has a first switch between a voltage input bus and the output bus, and a second switch between the output bus and a flyback transformer coupled to a reference voltage terminal. When the voltage on the output bus drops below a first threshold, the first switch couples and thereby transfers energy from the voltage input bus to the voltage output bus and the load. When the voltage on the output bus exceeds a second threshold, the second switch is closed, transferring energy from the output bus to an input winding of the flyback transformer. When the voltage on the output bus drops back in a range between the two thresholds, the second switch is opened, and the flyback transformer transfers stored energy back to the voltage input bus.

    摘要翻译: DC-DC转换器具有耦合以为负载供电的输出总线。 电压瞬变补偿电路在电压输入总线和输出总线之间具有第一开关,以及在输出总线和耦合到参考电压端子的反激变压器之间的第二开关。 当输出总线上的电压下降到低于第一阈值时,第一开关耦合,从而将能量从电压输入总线传输到电压输出总线和负载。 当输出总线上的电压超过第二个阈值时,第二个开关闭合,将能量从输出总线传输到回扫变压器的输入绕组。 当输出总线上的电压下降到两个阈值之间的范围时,第二个开关打开,回扫变压器将存储的能量传送回电压输入总线。