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1. 发明申请

US20160161961A1 CIRCUIT TO IMPROVE LOAD TRANSIENT BEHAVIOR OF VOLTAGE REGULATORS AND LOAD SWITCHES 有权
标题翻译：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。

2. 发明申请

US20160026199A1 LDO AND LOAD SWITCH SUPPORTING A WIDE RANGE OF LOAD CAPACITANCE 有权
标题翻译： 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。

3. 发明授权

US08917070B2 LDO and load switch supporting a wide range of load capacitance 有权
标题翻译： 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。

4. 发明授权

US10097170B2 Circuit and method for low power chip enable circuitry 有权
公开(公告)号：US10097170B2
公开(公告)日：2018-10-09
申请号：US15605249
申请日：2017-05-25
申请人： Vidatronic Inc.
发明人： Mohamed Ahmed Mohamed El-Nozahi , Mohamed Mostafa Saber Aboudina , Sameh Ahmed Assem Ibrahim , Faisal Abdelatif Elsedeek Hussien
IPC分类号： H03K3/02 , H03K5/08 , G11C5/14 , H03K19/00
摘要： A novel low power enable circuit is less sensitive to power supply variations while consuming less than 50 nA of supply current. The enable circuit includes a voltage clamp circuit which limits the supply level for a first inverter. The clamp circuit having a first input connected to a supply, a second input connected to chip enable, and a first output. The enable circuit further includes a first inverter having a third input connected to the chip enable, a fourth input connected to the first output of the clamp circuit, and a second output; a second inverter having a fifth input connected to the second output of the first inverter, a sixth input connected to the supply, and a third output; a memory element having a seventh input connected to the third output of the second inverter, an eighth input, and a fourth output; and a comparator having a ninth input connected to the chip enable, a tenth input connected to a reference signal, an eleventh input connected to the fourth output of the memory element, and a fifth output connected to the eighth input of the memory element.

5. 发明授权

US09785164B2 Power supply rejection for voltage regulators using a passive feed-forward network 有权
公开(公告)号：US09785164B2
公开(公告)日：2017-10-10
申请号：US14989645
申请日：2016-01-06
申请人： Vidatronic, Inc.
发明人： Mohamed Mostafa Saber Aboudina , Sameh Ahmed Assem Mostafa Ibrahim , Mohamed Ahmed Mohamed El-Nozahi , Faisal Abdellatif Elseddeek Ali Hussien
IPC分类号： G05F1/575
CPC分类号： G05F1/575
摘要： A low drop-out (LDO)/load switch linear voltage regulator (LVR) circuit having a first input terminal and a first output terminal, includes: a passive network with a second input terminal connected to the first input terminal and a second output terminal; a feedback network with a third input terminal connected to the first output terminal and a third output terminal; a pass element having a fourth input terminal connected to the first input terminal, a fourth output terminal connected to the first output terminal and first control terminal; a combiner having a fifth input connected to the second input, a sixth input connected to the third output and a fifth output connected to the first control terminal.

6. 发明申请

US20160195883A1 POWER SUPPLY REJECTION FOR VOLTAGE REGULATORS USING A PASSIVE FEED-FORWARD NETWORK 有权
标题翻译：使用无源进给网络的电压调节器的电源抑制
公开(公告)号：US20160195883A1
公开(公告)日：2016-07-07
申请号：US14989645
申请日：2016-01-06
申请人： Vidatronic, Inc.
发明人： Mohamed Mostafa Saber Aboudina , Sameh Ahmed Assem Mostafa Ibrahim , Mohamed Ahmed Mohamed El-Nozahi , Faisal Abdellatif Elseddeek Ali Hussien
IPC分类号： G05F1/575
CPC分类号： G05F1/575
摘要： A low drop-out (LDO)/load switch linear voltage regulator (LVR) circuit having a first input terminal and a first output terminal, includes: a passive network with a second input terminal connected to the first input terminal and a second output terminal; a feedback network with a third input terminal connected to the first output terminal and a third output terminal; a pass element having a fourth input terminal connected to the first input terminal, a fourth output terminal connected to the first output terminal and first control terminal; a combiner having a fifth input connected to the second input, a sixth input connected to the third output and a fifth output connected to the first control terminal.
摘要翻译：具有第一输入端和第一输出端的低压降（LDO）/负载开关线性稳压器（LVR）电路包括：无源网络，其第二输入端连接到第一输入端，第二输出端 ; 具有连接到第一输出端子的第三输入端子和第三输出端子的反馈网络; 通过元件，具有连接到第一输入端子的第四输入端子，连接到第一输出端子和第一控制端子的第四输出端子; 具有连接到第二输入的第五输入的组合器，连接到第三输出的第六输入和连接到第一控制端的第五输出。

7. 发明授权

US10656188B2 Circuit and method for load detection using switched capacitors 有权
公开(公告)号：US10656188B2
公开(公告)日：2020-05-19
申请号：US15650836
申请日：2017-07-14
申请人： Vidatronic Inc.
发明人： Sameh Ahmed Assem Ibrahim , Faisal Abdellatif Elseddeek Hussien , Mohamed Mostafa Saber Aboudina , Mohamed Ahmed Mohamed El-Nozahi
IPC分类号： G01R19/165 , H03K17/687 , G01R31/64
摘要： A load detection circuit includes a variable current source circuit having a first input connected to a power supply, a second input, and a first output connected to an output load; a switched capacitor circuit having a third input connected to an external voltage reference signal, a fourth input connected to the first output of the variable current source, a fifth input connected to ground, a sixth input, and a second output; a comparator having a seventh input connected to the second output of the switched capacitor circuit, an eighth input connected to the first output of the variable current source, and a third output; an edge detector having a ninth input connected to the third output of the comparator, and a fourth output; and a digital controller having a fifth output connected to the variable current source and a sixth output connected to the switched capacitor circuit.

8. 发明授权

US09998010B1 Automatically reconfigurable buck-boost DC-DC converter with shared capacitors 有权
公开(公告)号：US09998010B1
公开(公告)日：2018-06-12
申请号：US15477104
申请日：2017-04-02
申请人： Vidatronic Inc.
发明人： Sameh Ahmed Assem Ibrahim , Faisal Abdellatif Elseddeek Hussien , Mohamed Mostafa Saber Aboudina , Moises Emanuel Robinson
IPC分类号： H02M3/158 , G05F1/59 , H02M3/06 , H02M3/337 , H02M1/00 , H02M1/42
CPC分类号： H02M3/07 , H02M2001/0045
摘要： An automatically reconfigurable Buck-Boost DC-DC converter having an input supply and an output voltage includes a linear regulator (LDO) for Buck configuration; a switched-capacitor DC-DC converter; a capacitor and switch array, and a gain selector to switch between the linear regulator (LDO) when an output DC level is higher than an input DC level (Buck configuration) and the switched-capacitor DC-DC converter when the output DC level is lower than the input DC level (Boost configuration).

9. 发明申请

US20140266104A1 AN LDO AND LOAD SWITCH SUPPORTING A WIDE RANGE OF LOAD CAPACITANCE 有权
标题翻译：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。

10. 发明申请

US20140253072A1 VOLTAGE REGULATORS WITH IMPROVED STARTUP, SHUTDOWN, AND TRANSIENT BEHAVIOR 有权
标题翻译：具有改进的启动，关闭和瞬时行为的电压调节器
公开(公告)号：US20140253072A1
公开(公告)日：2014-09-11
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 E. Robinson
IPC分类号： G05F1/46
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。

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