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    CIRCUIT TO IMPROVE LOAD TRANSIENT BEHAVIOR OF VOLTAGE REGULATORS AND LOAD SWITCHES
    1.
    发明申请
    CIRCUIT TO IMPROVE LOAD TRANSIENT BEHAVIOR OF VOLTAGE REGULATORS AND LOAD SWITCHES 有权
    电路改进负载电压稳压器和负载开关的瞬态特性

    公开(公告)号：US20160161961A1

    公开(公告)日：2016-06-09

    申请号：US14959993

    申请日：2015-12-04

    申请人： Vidatronic, Inc.

    发明人： Mohamed Ahmed Mohamed El-Nozahi ,  Faisal Abdellatif Elseddeek Ali Hussien ,  Mohamed Mostafa Saber Aboudina ,  Sameh Ahmed Assem Mostafa Ibrahim ,  Moises Emanuel Robinson

    IPC分类号： G05F1/56

    CPC分类号： G05F1/56

    摘要： A method to adjust the load transient regulation of a low drop-out (LDO)/load switch linear voltage regulator (LVR) with an n-type pass element having an open loop transfer function, including determining during a load transient event if the gate of the pass—element goes lower than a scaled value of the output voltage or a constant voltage level, generating a control signal that controls a current sink block if the gate voltage of the pass element is lower than the output voltage, and enabling a current sink block that is controlled by the control signal and connecting the output of the current sink block to the output of the LVR.

    摘要翻译： 一种利用具有开环传递函数的n型通过元件来调整低压降（LDO）/负载开关线性稳压器（LVR）的负载瞬态调节的方法，包括在负载瞬变事件期间确定是否门 的通过元件的输出电压低于输出电压的定标值或恒定电压电平，如果通过元件的栅极电压低于输出电压，则产生控制电流吸收块的控制信号，并使能电流 接收器块由控制信号控制，并将当前接收器块的输出连接到LVR的输出。

    LDO AND LOAD SWITCH SUPPORTING A WIDE RANGE OF LOAD CAPACITANCE
    2.
    发明申请
    LDO AND LOAD SWITCH SUPPORTING A WIDE RANGE OF LOAD CAPACITANCE 有权
    LDO和负载开关支持宽范围的负载电容

    公开(公告)号：US20160026199A1

    公开(公告)日：2016-01-28

    申请号：US14776349

    申请日：2014-03-14

    申请人： Vidatronic, Inc.

    发明人： Mohamed Ahmed Mohamed El-Nozahi ,  Mohamed Mostafa Saber Aboudina ,  Sameh Assem Ibrahim ,  Faisal Abdellatif Elseddeek Ali Hussien ,  Moises Emanuel Robinson

    IPC分类号： G05F1/575

    CPC分类号： G05F1/575 ,  G05F1/565 ,  G05F1/573

    摘要： An architecture and method to maintain stability of a low drop-out (LDO)/load switch linear voltage regulator (LVR). The architecture method support optionally determining during a power-up phase and by using a load detection circuit, the estimated load parameters that represents at least one selected from a group consisting of: the load time constant and the load resistor at an output node of the LDO/load switch LVR, and adjusting, based on the estimated output load parameters, an adaptive RC network in the LDO/load switch LVR, wherein the adaptive RC network produces an adaptive zero in a feedback network transfer function of the LDO/load switch LVR, wherein the adaptive zero reduces an effect of a non-dominant pole in the open loop transfer function of the LDO/load switch LVR, and wherein a frequency of the adaptive zero is adjusted based on the estimated load parameters.

    摘要翻译： 保持低压降（LDO）/负载开关线性稳压器（LVR）稳定性的架构和方法。 架构方法支持可选地在上电阶段期间确定并且通过使用负载检测电路，所估计的负载参数表示从以下组中选择的至少一个：加载时间常数和负载电阻在输出节点 LDO /负载开关LVR，并且基于估计的输出负载参数来调整LDO /负载开关LVR中的自适应RC网络，其中自适应RC网络在LDO /负载开关的反馈网络传递函数中产生自适应零点 LVR，其中自适应零减少LDO /负载开关LVR的开环传递函数中的非主导极的影响，并且其中基于所估计的负载参数来调整自适应零点的频率。

    LDO and load switch supporting a wide range of load capacitance
    3.
    发明授权
    LDO and load switch supporting a wide range of load capacitance 有权
    LDO和负载开关支持宽范围的负载电容

    公开(公告)号：US08917070B2

    公开(公告)日：2014-12-23

    申请号：US13830478

    申请日：2013-03-14

    申请人： Vidatronic, Inc.

    发明人： Mohamed Ahmed Mohamed El-Nozahi ,  Mohamed Mostafa Saber Aboudina ,  Sameh Assem Ibrahim ,  Faisal Abdellatif Elseddeek Ali Hussien ,  Moises Emanuel Robinson

    IPC分类号： G05F1/565 ,  G05F1/575

    CPC分类号： G05F1/575 ,  G05F1/565

    摘要： A method to maintain stability of a low drop-out (LDO)/load switch linear voltage regulator (LVR). The method includes determining, during a power-up phase and by a capacitance sensing circuit, an estimated output capacitance value at an output node of the LDO/load switch LVR, and adjusting, based on the estimated output capacitance value, an adaptive RC network in the LDO/load switch LVR, wherein the adaptive RC network produces an adaptive zero in a feedback network transfer function of the LDO/load switch LVR, wherein the adaptive zero reduces an effect of a non-dominant pole in the open loop transfer function of the LDO/load switch LVR, and wherein a frequency of the adaptive zero is inversely proportional to the estimated output capacitance value.

    摘要翻译： 一种保持低压降（LDO）/负载开关线性稳压器（LVR）稳定性的方法。 该方法包括在上电阶段和电容检测电路期间确定LDO /负载开关LVR的输出节点处的估计输出电容值，并且基于所估计的输出电容值来调整自适应RC网络 在LDO /负载开关LVR中，其中自适应RC网络在LDO /负载开关LVR的反馈网络传递函数中产生自适应零，其中自适应零减少开环传递函数中的非主导极的影响 的LDO /负载开关LVR，并且其中自适应零的频率与估计的输出电容值成反比。

    AN LDO AND LOAD SWITCH SUPPORTING A WIDE RANGE OF LOAD CAPACITANCE
    5.
    发明申请
    AN LDO AND LOAD SWITCH SUPPORTING A WIDE RANGE OF LOAD CAPACITANCE 有权
    一个LDO和负载开关支持宽范围的负载电容

    公开(公告)号：US20140266104A1

    公开(公告)日：2014-09-18

    申请号：US13830478

    申请日：2013-03-14

    申请人： VIDATRONIC, INC.

    发明人： Mohamed Ahmed Mohamed El-Nozahi ,  Mohamed Mostafa Saber Aboudina ,  Sameh Assem Ibrahim ,  Faisal Abdellatif Elseddeek Ali Hussien ,  Moises Emanuel Robinson

    IPC分类号： G05F1/575 ,  G05F1/565

    CPC分类号： G05F1/575 ,  G05F1/565

    摘要： A method to maintain stability of a low drop-out (LDO)/load switch linear voltage regulator (LVR). The method includes determining, during a power-up phase and by a capacitance sensing circuit, an estimated output capacitance value at an output node of the LDO/load switch LVR, and adjusting, based on the estimated output capacitance value, an adaptive RC network in the LDO/load switch LVR, wherein the adaptive RC network produces an adaptive zero in a feedback network transfer function of the LDO/load switch LVR, wherein the adaptive zero reduces an effect of a non-dominant pole in the open loop transfer function of the LDO/load switch LVR, and wherein a frequency of the adaptive zero is inversely proportional to the estimated output capacitance value.

    摘要翻译： 一种保持低压降（LDO）/负载开关线性稳压器（LVR）稳定性的方法。 该方法包括在上电阶段和电容检测电路期间确定LDO /负载开关LVR的输出节点处的估计输出电容值，并且基于所估计的输出电容值来调整自适应RC网络 在LDO /负载开关LVR中，其中自适应RC网络在LDO /负载开关LVR的反馈网络传递函数中产生自适应零，其中自适应零减少开环传递函数中的非主导极的影响 的LDO /负载开关LVR，并且其中自适应零的频率与估计的输出电容值成反比。

    INRUSH CURRENT CONTROLLER FOR VOLTAGE REGULATORS
    9.
    发明申请
    INRUSH CURRENT CONTROLLER FOR VOLTAGE REGULATORS 审中-公开
    用于电压调节器的INRUSH电流控制器

    公开(公告)号：US20160218613A1

    公开(公告)日：2016-07-28

    申请号：US15006671

    申请日：2016-01-26

    申请人： Vidatronic, Inc.

    发明人： Faisal Hussien ,  Sameh Ahmed Assem Mostafa Ibrahim ,  Mohamed Mostafa Saber Aboudina ,  Mohamed Ahmed Mohamed El-Nozahi ,  Moises Emanuel Robinson

    IPC分类号： H02M1/088 ,  H02M1/32 ,  H02M1/36

    CPC分类号： H02M1/36 ,  H02M2001/0045

    摘要： Inrush current is a critical, undesirable behavior that results from the uncontrolled start-up or shut-down of voltage regulators. Large inrush currents lead to voltage overshoot at the output node of voltage regulators and this can damage the regulator load, in addition to peak current that can damage the packaging or the regulator itself. Embodiments of the invention introduce methods of inrush current reduction based on voltage reference generation. For example, one method is based on multiple filtered steps of the voltage reference for the voltage regulator. For example, another method is based on creating a voltage reference signal that has a continuous slope starting from zero and ending at zero. Embodiments of the invention reduce or limit the inrush current for sensitive applications.

    摘要翻译： 浪涌电流是电压调节器的不受控制的启动或停机引起的关键的，不良的行为。 大的浪涌电流导致电压调节器的输出节点处的电压过冲，这可能会损坏调节器负载，以及可能损坏封装或稳压器本身的峰值电流。 本发明的实施例引入了基于电压基准产生的浪涌电流降低方法。 例如，一种方法是基于电压调节器的电压基准的多个滤波步骤。 例如，另一种方法是基于产生具有从零开始并以零结束的连续斜率的电压参考信号。 本发明的实施例降低或限制敏感应用的浪涌电流。

    Voltage regulators with improved startup, shutdown, and transient behavior
    10.
    发明授权
    Voltage regulators with improved startup, shutdown, and transient behavior 有权
    具有改善启动，关闭和瞬态特性的稳压器

    公开(公告)号：US09287772B2

    公开(公告)日：2016-03-15

    申请号：US13787181

    申请日：2013-03-06

    申请人： Vidatronic, Inc.

    发明人： Faisal Abdellatif Elseddeek Ali Hussien ,  Mohamed Mostafa Saber Aboudina ,  Moises Emanuel Robinson

    IPC分类号： G05F1/00 ,  H02M3/156 ,  H02M1/36 ,  H02M1/088 ,  H02M3/157 ,  H02M1/00

    CPC分类号： H02M3/156 ,  H02M1/088 ,  H02M1/36 ,  H02M3/157 ,  H02M2001/0025 ,  H02M2001/0045

    摘要： A soft-start/soft-stop (SS) controller for a voltage regulator. The SS controller includes a power up/down detector configured to perform at least one selected from a group consisting of detecting a power on condition of the voltage regulator to determine a start-up time period and detecting a power off condition of the voltage regulator to determine a shut-down time period, and a ramped reference voltage signal generator configured to perform at least one selected from a group consisting of increasing a voltage level of a ramped reference voltage signal using a pre-determined ramp-up rate during the start-up time period and decreasing the voltage level of the ramped reference voltage signal using a pre-determined ramp-down rate during the shut-down time period, wherein the ramped reference voltage signal is supplied to the voltage regulator for controlling an output voltage level of the voltage regulator.

    摘要翻译： 用于电压调节器的软启动/软停止（SS）控制器。 SS控制器包括上电/下拉检测器，其被配置为执行从包括检测电压调节器的通电状态的组中选择的至少一个，以确定启动时间段并且检测电压调节器的断电状态 确定关闭时间段，以及斜坡参考电压信号发生器，其被配置为执行从由以下组成的组中选择的至少一个中选择的组中的至少一个：在启动期间使用预定的升压速率来增加斜坡参考电压信号的电压电平， 并且在关闭时间段期间使用预定的减速率降低斜坡参考电压信号的电压电平，其中斜坡参考电压信号被提供给电压调节器以控制输出电压电平 电压调节器。