VOLTAGE REGULATOR WITH ADAPTIVE HYSTERETIC CONTROL
    1.
    发明申请
    VOLTAGE REGULATOR WITH ADAPTIVE HYSTERETIC CONTROL 有权
    具有自适应滞后控制的电压调节器

    公开(公告)号:US20120001603A1

    公开(公告)日:2012-01-05

    申请号:US13175543

    申请日:2011-07-01

    IPC分类号: G05F1/10

    摘要: A voltage regulator with adaptive hysteretic control. The voltage regulator may include a top switch (e.g., MOSFET) configured to couple a power supply supplying an input voltage to a load. An adaptive hysteretic control circuit of the voltage regulator may turn on the top switch when the feedback voltage reaches the low threshold and turn off the top switch when the feedback voltage reaches the high threshold. The adaptive hysteretic control circuit may adjust the upper and lower threshold to make the voltage regulator working like a constant on time control circuit in steady state. When a step down transient happens, the top switch could be turned off when the output voltage reaches the upper threshold, and when a step up transient happens, the top switch could be turned on when the output voltage reaches the lower threshold, it makes the voltage regulator working like a hysteretic control circuit.

    摘要翻译: 具有自适应迟滞控制的电压调节器。 电压调节器可以包括被配置为将提供输入电压的电源耦合到负载的顶部开关(例如,MOSFET)。 当反馈电压达到低阈值时,电压调节器的自适应迟滞控制电路可以接通顶部开关,并且当反馈电压达到高阈值时关闭顶部开关。 自适应迟滞控制电路可以调节上限和下限阈值,使电压调节器工作在恒定的导通时间控制电路处于稳定状态。 当降压瞬变发生时,当输出电压达到上限阈值时,顶部开关可以关闭,当升压瞬变发生时,当输出电压达到下限阈值时,顶部开关可以导通, 电压调节器像滞后控制电路一样工作。

    Voltage regulator with adaptive hysteretic control
    2.
    发明授权
    Voltage regulator with adaptive hysteretic control 有权
    具有自适应迟滞控制的电压调节器

    公开(公告)号:US08773090B2

    公开(公告)日:2014-07-08

    申请号:US13175543

    申请日:2011-07-01

    IPC分类号: G05F1/618

    摘要: A voltage regulator with adaptive hysteretic control. The voltage regulator may include a top switch (e.g., MOSFET) configured to couple a power supply supplying an input voltage to a load. An adaptive hysteretic control circuit of the voltage regulator may turn on the top switch when the feedback voltage reaches the low threshold and turn off the top switch when the feedback voltage reaches the high threshold. The adaptive hysteretic control circuit may adjust the upper and lower threshold to make the voltage regulator working like a constant on time control circuit in steady state. When a step down transient happens, the top switch could be turned off when the output voltage reaches the upper threshold, and when a step up transient happens, the top switch could be turned on when the output voltage reaches the lower threshold, it makes the voltage regulator working like a hysteretic control circuit.

    摘要翻译: 具有自适应迟滞控制的电压调节器。 电压调节器可以包括被配置为将提供输入电压的电源耦合到负载的顶部开关(例如,MOSFET)。 当反馈电压达到低阈值时,电压调节器的自适应迟滞控制电路可以接通顶部开关,并且当反馈电压达到高阈值时关闭顶部开关。 自适应迟滞控制电路可以调节上限和下限阈值,使电压调节器工作在恒定的导通时间控制电路处于稳定状态。 当降压瞬变发生时,当输出电压达到上限阈值时,顶部开关可以关闭,当发生升压瞬变时,当输出电压达到下限阈值时,顶部开关可以导通, 电压调节器像滞后控制电路一样工作。

    Double-edge PWM controller and its control method thereof
    3.
    发明授权
    Double-edge PWM controller and its control method thereof 有权
    双边PWM控制器及其控制方法

    公开(公告)号:US07880522B2

    公开(公告)日:2011-02-01

    申请号:US12476526

    申请日:2009-06-02

    IPC分类号: H03K7/08

    CPC分类号: H02M3/156 H03K7/08

    摘要: The present invention discloses a double-edge pulse width modulation (PWM) controller based on the output current and output voltage which is modulated in real time by the output current and the output voltage. The controller uses an extra first adder to sum up the compensation signal and a triangular signal (or a saw-tooth signal); a second adder to sum up the output current signal to a bias value; a PWM comparator, with its non-inverting input receiving the output of said first adder, its inverting input receiving the output of said second adder and outputs the PWM signal.

    摘要翻译: 本发明公开了一种基于由输出电流和输出电压实时调制的输出电流和输出电压的双边缘脉宽调制(PWM)控制器。 控制器使用额外的第一加法器来对补偿信号和三角形信号(或锯齿信号)求和; 第二加法器,将输出电流信号与偏置值相加; PWM比较器,其非反相输入接收所述第一加法器的输出,其反相输入接收所述第二加法器的输出并输出PWM信号。

    Multiphase converter with controllable phase shift
    4.
    发明授权
    Multiphase converter with controllable phase shift 有权
    具有可控相移的多相转换器

    公开(公告)号:US08922177B2

    公开(公告)日:2014-12-30

    申请号:US13457831

    申请日:2012-04-27

    IPC分类号: G05F1/00 H02M3/158

    CPC分类号: H02M3/1584 H02M2003/1586

    摘要: A multiphase converter has a plurality of phase circuits and a plurality of phase control circuits. Each phase circuit has a switch having a control terminal, and the control terminal of the switch may be configured to receive a drive signal. Each phase control circuit may be corresponding to one of the phase circuits, and each phase control circuit may be configured to provide a phase control signal to adjust an ON-time period or a reference signal for the corresponding phase circuit. The phase control signal may be responsive to the drive signal of the corresponding phase circuit.

    摘要翻译: 多相转换器具有多个相电路和多个相位控制电路。 每相电路具有具有控制端子的开关,并且开关的控制端可以被配置为接收驱动信号。 每个相位控制电路可以对应于一个相位电路,并且每个相位控制电路可以被配置为提供相位控制信号以调整相应相位电路的接通时间周期或参考信号。 相位控制信号可以响应相应的相位电路的驱动信号。

    MULTIPHASE CONVERTER WITH CONTROLLABLE PHASE SHIFT
    5.
    发明申请
    MULTIPHASE CONVERTER WITH CONTROLLABLE PHASE SHIFT 有权
    具有可控相移的多相转换器

    公开(公告)号:US20120274293A1

    公开(公告)日:2012-11-01

    申请号:US13457831

    申请日:2012-04-27

    IPC分类号: G05F1/00

    CPC分类号: H02M3/1584 H02M2003/1586

    摘要: In one embodiment, a multiphase converter is disclosed. The multiphase converter may comprise a plurality of phase circuits and a plurality of phase control circuits. Each phase circuit may comprise a switch having a control terminal, and the control terminal of the switch may be configured to receive a drive signal. Each phase control circuit may be corresponding to one of the phase circuits, and each phase control circuit may be configured to provide a phase control signal to adjust an ON-time period or a reference signal for the corresponding phase circuit. The phase control signal may be responsive to the drive signal of the corresponding phase circuit.

    摘要翻译: 在一个实施例中,公开了一种多相转换器。 多相转换器可以包括多个相电路和多个相位控制电路。 每相电路可以包括具有控制端的开关,并且开关的控制端可被配置为接收驱动信号。 每个相位控制电路可以对应于一个相位电路,并且每个相位控制电路可以被配置为提供相位控制信号以调整相应相位电路的接通时间周期或参考信号。 相位控制信号可以响应相应的相位电路的驱动信号。

    DOUBLE-EDGE PWM CONTROLLER AND ITS CONTROL METHOD THEREOF
    6.
    发明申请
    DOUBLE-EDGE PWM CONTROLLER AND ITS CONTROL METHOD THEREOF 有权
    双边PWM控制器及其控制方法

    公开(公告)号:US20090295445A1

    公开(公告)日:2009-12-03

    申请号:US12476526

    申请日:2009-06-02

    IPC分类号: H03K7/08

    CPC分类号: H02M3/156 H03K7/08

    摘要: The present invention discloses a double-edge pulse width modulation (PWM) controller based on the output current and output voltage which is modulated in real time by the output current and the output voltage. The controller uses an extra first adder to sum up the compensation signal and a triangular signal (or a saw-tooth signal); a second adder to sum up the output current signal to a bias value; a PWM comparator, with its non-inverting input receiving the output of said first adder, its inverting input receiving the output of said second adder and outputs the PWM signal.

    摘要翻译: 本发明公开了一种基于由输出电流和输出电压实时调制的输出电流和输出电压的双边缘脉宽调制(PWM)控制器。 控制器使用额外的第一加法器来对补偿信号和三角形信号(或锯齿信号)求和; 第二加法器,将输出电流信号与偏置值相加; PWM比较器,其非反相输入接收所述第一加法器的输出,其反相输入接收所述第二加法器的输出并输出PWM信号。

    Converter circuit and associated method
    7.
    发明授权
    Converter circuit and associated method 有权
    转换电路及相关方法

    公开(公告)号:US09425688B2

    公开(公告)日:2016-08-23

    申请号:US13572558

    申请日:2012-08-10

    申请人: Qian Ouyang Wei Yuan

    发明人: Qian Ouyang Wei Yuan

    IPC分类号: H02M3/156 H02M1/00

    摘要: A converter control circuit for converting an input voltage to an output voltage comprises: an error amplifier, coupled to an output voltage or a feedback output signal from the output voltage, and a reference signal, operable to generate an error signal accordingly; a ramp signal generator, generating a first ramp signal and a second ramp signal; a first comparator, coupled to the error signal and the first ramp signal, operable to generate a first comparing signal accordingly; a second comparator, coupled to the error signal and the second ramp signal, operable to generate a second comparing signal accordingly; and a control signal generator, coupled to the first comparing signal and the second comparing signal, operable to generate a control signal to turn switches in the converter circuit ON and OFF accordingly.

    摘要翻译: 用于将输入电压转换为输出电压的转换器控制电路包括:耦合到输出电压的误差放大器或来自输出电压的反馈输出信号,以及参考信号,用于相应地产生误差信号; 斜坡信号发生器,产生第一斜坡信号和第二斜坡信号; 耦合到所述误差信号和所述第一斜坡信号的第一比较器,用于相应地产生第一比较信号; 耦合到所述误差信号和所述第二斜坡信号的第二比较器,用于相应地产生第二比较信号; 以及耦合到所述第一比较信号和所述第二比较信号的控制信号发生器,其可操作以产生控制信号,从而相应地将所述转换器电路中的开关转为ON和OFF。

    Multi-phase SMPS with load transient control and associated control method
    8.
    发明授权
    Multi-phase SMPS with load transient control and associated control method 有权
    具有负载瞬变控制和相关控制方法的多相SMPS

    公开(公告)号:US09071142B2

    公开(公告)日:2015-06-30

    申请号:US13530290

    申请日:2012-06-22

    IPC分类号: G05F1/563 H02M3/158 H02M3/156

    CPC分类号: H02M3/1584 H02M2003/1566

    摘要: The present invention discloses a multi-phase switch-mode power supply (SMPS). The multi-phase SMPS may comprise a plurality of comparing circuits and a controller. Wherein each comparing circuit comprises a first input coupled to a threshold voltage, a second input coupled to a feedback signal of the output voltage, and an output configured to provide a load indication signal. The controller may have a plurality of inputs coupled to the outputs of the comparing circuit, and a plurality of outputs configured to provide control signals for driving a plurality of switches of the multi-phase SMPS. And the controller is configured to selectively turn on a plurality of the switches according to the load indication signals.

    摘要翻译: 本发明公开了一种多相开关电源(SMPS)。 多相SMPS可以包括多个比较电路和控制器。 其中每个比较电路包括耦合到阈值电压的第一输入,耦合到输出电压的反馈信号的第二输入和被配置为提供负载指示信号的输出。 控制器可以具有耦合到比较电路的输出的多个输入,以及被配置为提供用于驱动多相SMPS的多个开关的控制信号的多个输出。 并且控制器被配置为根据负载指示信号选择性地接通多个开关。

    POWER CONVERTERS AND ASSOCIATED METHODS OF OPERATION
    9.
    发明申请
    POWER CONVERTERS AND ASSOCIATED METHODS OF OPERATION 有权
    电源转换器及相关操作方法

    公开(公告)号:US20100026271A1

    公开(公告)日:2010-02-04

    申请号:US12510073

    申请日:2009-07-27

    申请人: Qian Ouyang

    发明人: Qian Ouyang

    IPC分类号: G05F3/16

    CPC分类号: H02M3/158

    摘要: Power converters and associated methods of operation are disclosed herein. In one embodiment, a power converter includes a first switch and a second switch electrically coupled to the first switch in series. The first switch is electrically coupled to a first node and to a second node via the second switch. The power converter further includes a capacitor and a third switch electrically coupled to the first node and to the second node via the capacitor and the second switch. The third switch has a linear-active region of operation.

    摘要翻译: 功率转换器和相关操作方法在此公开。 在一个实施例中,功率转换器包括电耦合到第一开关串联的第一开关和第二开关。 第一开关经由第二开关电耦合到第一节点和第二节点。 功率转换器还包括电容器和电耦合到第一节点并经由电容器和第二开关电耦合到第二节点的第三开关。 第三开关具有线性有源的操作区域。

    METHODS AND APPARATUS TO PROVIDE DYNAMIC MESSAGING SERVICES
    10.
    发明申请
    METHODS AND APPARATUS TO PROVIDE DYNAMIC MESSAGING SERVICES 有权
    提供动态消息传递服务的方法和设备

    公开(公告)号:US20140325512A1

    公开(公告)日:2014-10-30

    申请号:US14330848

    申请日:2014-07-14

    IPC分类号: G06F9/455

    CPC分类号: G06F9/45533 G06F9/451

    摘要: Methods and apparatus to provide dynamic messaging services are disclosed. An example method of displaying information on a display screen includes determining, using a virtual machine manager, supported dimensions for display of information on the display screen; generating, using the virtual machine manager, restricted dimensions that are less than the supported dimensions; providing the restricted dimensions to an operating system of a virtual machine supported by the virtual machine manager, wherein the restricted dimensions define a boundary between a first screen portion and a second screen portion; and using the virtual machine manager to display first information in the first screen portion, the virtual machine manager enforcing the presence of the first screen portion on the display screen.

    摘要翻译: 公开了提供动态消息接发服务的方法和装置。 在显示屏幕上显示信息的示例性方法包括:使用虚拟机管理器确定支持的尺寸以在显示屏幕上显示信息; 使用虚拟机管理器生成小于所支持尺寸的限制尺寸; 向所述虚拟机管理器支持的虚拟机的操作系统提供所述限制的维度,其中所述受限维度定义了第一屏幕部分和第二屏幕部分之间的边界; 并且使用虚拟机管理器在第一屏幕部分中显示第一信息,虚拟机管理器在显示屏幕上强制存在第一屏幕部分。