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公开(公告)号：US08878510B2
公开(公告)日：2014-11-04
申请号：US13472461
申请日：2012-05-15
IPC分类号： G05F3/08
摘要： A voltage regulator includes an amplifier, a first buffer and a second buffer. The amplifier is designed to generate an error voltage between a reference voltage and a voltage at an output node of the voltage regulator. The first buffer is coupled to receive the amplified error voltage and, in response, to drive a first pass transistor. The first buffer includes a non-linear resistance element. The resistance of the non-linear resistance element varies non-linearly with a load current drawn from the output node. The second buffer is coupled to receive the amplified error voltage, and in response, to drive a second pass transistor. The second buffer includes a linear resistance element. The resistance of the linear element is a constant. The use of the non-linear resistance element enables reduction in power consumption in the voltage regulator.
摘要翻译： 电压调节器包括放大器，第一缓冲器和第二缓冲器。 放大器设计用于在电压调节器的输出节点处产生参考电压和电压之间的误差电压。 第一缓冲器被耦合以接收放大的误差电压，并且作为响应来驱动第一传输晶体管。 第一缓冲器包括非线性电阻元件。 非线性电阻元件的电阻随从输出节点引出的负载电流而非线性变化。 第二缓冲器被耦合以接收放大的误差电压，并且响应于驱动第二传输晶体管。 第二缓冲器包括线性电阻元件。 线性元件的电阻是一个常数。 使用非线性电阻元件能够降低电压调节器的功耗。
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公开(公告)号：US08242762B2
公开(公告)日：2012-08-14
申请号：US12436136
申请日：2009-05-06
IPC分类号： G05F1/575
CPC分类号： H02M3/1588 , Y02B70/1466
摘要： A transient recovery circuit for switching devices. The transient recovery circuit includes a detecting circuit for detecting a rapid transient in an output voltage of a switching device by detecting a rate of the output voltage transient; an auxiliary controlling circuit in a feedback loop of the switching device for correcting the output voltage by changing a bandwidth of the feedback loop if the rapid transient is detected; and an initializing circuit for initializing the feedback loop to expected operating points in a continuous conduction mode after correcting the output voltage.
摘要翻译： 用于开关器件的瞬态恢复电路。 瞬态恢复电路包括检测电路，用于通过检测输出电压瞬变的速率来检测开关装置的输出电压中的快速瞬变; 所述开关装置的反馈环路中的辅助控制电路，用于通过在检测到所述快速瞬变时改变所述反馈回路的带宽来校正所述输出电压; 以及用于在校正输出电压之后将连续导通模式中的反馈回路初始化为期望工作点的初始化电路。
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公开(公告)号：US08049472B2
公开(公告)日：2011-11-01
申请号：US12463388
申请日：2009-05-09
IPC分类号： G05F1/577
CPC分类号： H02M3/158 , H02M2001/009
摘要： Single inductor multiple output (SIMO) switching devices with efficient regulating circuits. The SIMO switching device includes a plurality of time division multiplexing (TDM) switches for switching current through an inductor of the SIMO switching device. The plurality of TDM switches produces a plurality of outputs. The SIMO switching device further includes an error calculation circuit operatively coupled to the plurality of outputs for determining a calculated error from the plurality of outputs; a time slot generation circuit for controlling the plurality of TDM switches according to the calculated error; and a pulse width modulation (PWM) control circuit operatively coupled to the time slot generation circuit for controlling a plurality of PWM switches of a switching stage of the SIMO switching device in a continuous conduction mode (CCM) of operation. The PWM switches are controlled according to the time slots generated by the time slot generation circuit.
摘要翻译： 具有高效调节电路的单电感多输出（SIMO）开关器件。 SIMO切换装置包括用于切换通过SIMO切换装置的电感器的电流的多个时分复用（TDM）开关。 多个TDM交换机产生多个输出。 SIMO切换装置还包括可操作地耦合到多个输出的误差计算电路，用于从多个输出中确定计算出的误差; 时隙生成电路，用于根据计算出的误差来控制多个TDM交换机; 以及可操作地耦合到所述时隙产生电路的脉冲宽度调制（PWM）控制电路，用于在连续导通模式（CCM）中控制所述SIMO开关器件的开关级的多个PWM开关。 PWM开关根据时隙发生电路产生的时隙进行控制。
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4.发明授权Methods and systems for designing high resolution analog to digital converters 有权用于设计高分辨率模数转换器的方法和系统公开(公告)号：US07570191B2
公开(公告)日：2009-08-04
申请号：US11760778
申请日：2007-06-10
IPC分类号： H03M1/38
CPC分类号： H03M1/0604 , H03M1/168
摘要： Methods and systems for designing a high resolution analog to digital converter (ADC) by eliminating the errors in the ADC stages. An error correction architecture and method eliminate the gain error and settling error of the residue amplifier in a pipelined ADC stage. A reference voltage error correction architecture and method eliminate the reference voltage error due to the sampling action in the ADC. The gain error correction method calculates the gain error using an error amplifier and eliminates the gain error at a later stage of the ADC. The reference voltage error correction method calculates the reference voltage error using an ideal reference voltage and corrects the error at a later stage of the ADC. Therefore, the constraints of gain and settling of the residue amplifier is significantly reduced.
摘要翻译： 通过消除ADC阶段的错误来设计高分辨率模数转换器（ADC）的方法和系统。 错误校正架构和方法消除了流水线ADC阶段的残差放大器的增益误差和稳定误差。 参考电压误差校正架构和方法消除了ADC中采样动作引起的参考电压误差。 增益误差校正方法使用误差放大器计算增益误差，消除ADC后期的增益误差。 参考电压误差校正方法使用理想的参考电压计算参考电压误差，并在ADC后期校正误差。 因此，残差放大器的增益和稳定的约束显着降低。
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5.发明申请METHODS AND SYSTEMS FOR DESIGNING HIGH RESOLUTION ANALOG TO DIGITAL CONVERTERS 有权将高分辨率模拟设计为数字转换器的方法和系统公开(公告)号：US20070285298A1
公开(公告)日：2007-12-13
申请号：US11760778
申请日：2007-06-10
IPC分类号： H03M1/12
CPC分类号： H03M1/0604 , H03M1/168
摘要： Methods and systems for designing a high resolution ADC by eliminating the errors in the ADC stages. An error correction architecture and method of the embodiments of the invention eliminate the gain error and settling error of the residue amplifier in a pipelined ADC stage. A reference voltage error correction architecture and method of the embodiments of the invention eliminate the reference voltage error due to the sampling action in the ADC. The gain error correction method calculates the gain error using an error amplifier and eliminates the gain error at a later stage of the ADC. The reference voltage error correction method calculates the reference voltage error using an ideal reference voltage and corrects the error at a later stage of the ADC. The constraints of gain and settling of the residue amplifier is significantly reduced using the embodiments of the invention.
摘要翻译： 通过消除ADC阶段的错误来设计高分辨率ADC的方法和系统。 本发明的实施例的纠错体系结构和方法消除了在流水线ADC级中的残差放大器的增益误差和稳定误差。 本发明的实施例的参考电压误差校正架构和方法消除了由ADC中的采样动作导致的参考电压误差。 增益误差校正方法使用误差放大器计算增益误差，消除ADC后期的增益误差。 参考电压误差校正方法使用理想的参考电压计算参考电压误差，并在ADC后期校正误差。 使用本发明的实施例，残余放大器的增益和稳定的约束显着降低。
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公开(公告)号：US20060068742A1
公开(公告)日：2006-03-30
申请号：US10711724
申请日：2004-09-30
CPC分类号： H03H11/126 , H04B1/16
摘要： A trans-impedance filter circuit provided according to an aspect of the present invention contains an operational amplifier, a first resistor, a first capacitor, a second resistor, and a second capacitor. The second capacitor is connected in parallel between the inverting input terminal and an output path of the operational amplifier. The second resistor is connected between the output terminal of the operational amplifier and a second node on a path connecting the input signal to the inverting input terminal. The first resistor is coupled between the first node and inverting input terminal of the operational amplifier. The first capacitor is coupled between the first node and Vss. Due to such connections, the filter circuit operates as a second order filter circuit, thereby providing a desired high level of filtering. Also, as the filter circuit is implemented with a single operational amplifier, the power and area requirements are reduced.
摘要翻译： 根据本发明一方面提供的跨阻抗滤波器电路包括运算放大器，第一电阻器，第一电容器，第二电阻器和第二电容器。 第二电容器并联连接在反相输入端和运算放大器的输出路径之间。 第二电阻器连接在运算放大器的输出端和将输入信号连接到反相输入端的路径上的第二节点之间。 第一电阻耦合在运算放大器的第一节点和反相输入端之间。 第一电容器耦合在第一节点和Vss之间。 由于这种连接，滤波器电路作为二阶滤波器电路工作，从而提供期望的高级滤波。 而且，由于滤波器电路由单个运算放大器实现，所以功率和面积要求降低。
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公开(公告)号：US08912843B2
公开(公告)日：2014-12-16
申请号：US13009868
申请日：2011-01-20
CPC分类号： H03H7/0153 , H03H7/06 , H03H11/12 , H03H2210/012 , H03H2210/028
摘要： An ultra low cut-off frequency filter. A filter circuit includes a control circuit responsive to an input signal and a feedback signal to generate a control signal. The filter circuit includes a controllable resistor coupled to the control circuit. The controllable resistor is responsive to a reference signal and the control signal to generate the feedback signal. The filter circuit includes a feedback path coupled to the control circuit and the controllable resistor to couple the feedback signal from the controllable resistor to the control circuit, thereby removing noise from at least one of the input signal and the reference signal, and preventing voltage error in the filter circuit.
摘要翻译： 超低截止频率滤波器。 滤波电路包括响应于输入信号和反馈信号的控制电路以产生控制信号。 滤波器电路包括耦合到控制电路的可控电阻器。 可控电阻响应于参考信号和控制信号以产生反馈信号。 滤波器电路包括耦合到控制电路和可控电阻器的反馈路径，以将来自可控电阻器的反馈信号耦合到控制电路，从而从输入信号和参考信号中的至少一个消除噪声，并且防止电压误差 在滤波电路中。
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公开(公告)号：US20130307502A1
公开(公告)日：2013-11-21
申请号：US13472461
申请日：2012-05-15
IPC分类号： G05F1/10
摘要： A voltage regulator includes an amplifier, a first buffer and a second buffer. The amplifier is designed to generate an error voltage between a reference voltage and a voltage at an output node of the voltage regulator. The first buffer is coupled to receive the amplified error voltage and, in response, to drive a first pass transistor. The first buffer includes a non-linear resistance element. The resistance of the non-linear resistance element varies non-linearly with a load current drawn from the output node. The second buffer is coupled to receive the amplified error voltage, and in response, to drive a second pass transistor. The second buffer includes a linear resistance element. The resistance of the linear element is a constant. The use of the non-linear resistance element enables reduction in power consumption in the voltage regulator.
摘要翻译： 电压调节器包括放大器，第一缓冲器和第二缓冲器。 放大器设计用于在电压调节器的输出节点处产生参考电压和电压之间的误差电压。 第一缓冲器被耦合以接收放大的误差电压，并且作为响应来驱动第一传输晶体管。 第一缓冲器包括非线性电阻元件。 非线性电阻元件的电阻随从输出节点引出的负载电流而非线性变化。 第二缓冲器被耦合以接收放大的误差电压，并且响应于驱动第二传输晶体管。 第二缓冲器包括线性电阻元件。 线性元件的电阻是一个常数。 使用非线性电阻元件能够降低电压调节器的功耗。
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9.发明申请OPERATING DIRECT CURRENT (DC) POWER SOURCES IN AN ARRAY FOR ENHANCED EFFICIENCY 失效运行直流电源（DC）电源，以提高效率公开(公告)号：US20120193989A1
公开(公告)日：2012-08-02
申请号：US13071533
申请日：2011-03-25
申请人： Prakash Easwaran , Saumitra Singh , Rupak Ghayal , Amit Premy
发明人： Prakash Easwaran , Saumitra Singh , Rupak Ghayal , Amit Premy
IPC分类号： H02J3/04
CPC分类号： G05F1/67 , Y10T307/685
摘要： In a solar panel array that includes a string of series-connected panels, the load current flowing through the string is measured. The peak current (Ipp) of a panel in the string is determined. A current equal to the difference of the load current and the peak current (Ipp) is generated in a current source connected across the output terminals of the panel. The panel is thereby operated at its maximum power point (MPP). To determine the peak current (Ipp) of the panel, the magnitude of current flowing through the panel is iteratively changed and the corresponding power generated by the panel is computed. The change in the current through the panel and the measurement of the corresponding power are repeated until a maximum power is determined as being generated by the panel. The maximum power corresponds to the maximum power point (MPP) and the peak current (Ipp) of the panel.
摘要翻译： 在包括一系列串联连接的面板的太阳能电池板阵列中，测量流过该串的负载电流。 确定字符串中面板的峰值电流（Ipp）。 在连接在面板的输出端子上的电流源中产生等于负载电流和峰值电流（Ipp）差的电流。 因此，面板以其最大功率点（MPP）运行。 为了确定面板的峰值电流（Ipp），流过面板的电流的大小被迭代地改变，并且计算面板产生的对应的功率。 重复通过面板的电流的变化和对应的功率的测量，直到最大功率被确定为由面板产生。 最大功率对应于面板的最大功率点（MPP）和峰值电流（Ipp）。
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公开(公告)号：US20090278516A1
公开(公告)日：2009-11-12
申请号：US12436136
申请日：2009-05-06
IPC分类号： G05F1/10
CPC分类号： H02M3/1588 , Y02B70/1466
摘要： A transient recovery circuit for switching devices. The transient recovery circuit includes a detecting circuit for detecting a rapid transient in an output voltage of a switching device by detecting a rate of the output voltage transient; an auxiliary controlling circuit in a feedback loop of the switching device for correcting the output voltage by changing a bandwidth of the feedback loop if the rapid transient is detected; and an initializing circuit for initializing the feedback loop to expected operating points in a continuous conduction mode after correcting the output voltage.
摘要翻译： 用于开关器件的瞬态恢复电路。 瞬态恢复电路包括检测电路，用于通过检测输出电压瞬变的速率来检测开关装置的输出电压中的快速瞬变; 所述开关装置的反馈环路中的辅助控制电路，用于通过在检测到所述快速瞬变时改变所述反馈回路的带宽来校正所述输出电压; 以及用于在校正输出电压之后将连续导通模式中的反馈回路初始化为期望工作点的初始化电路。
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