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    Pre-Charge Technique For A Voltage Regulator
    32.
    发明申请
    Pre-Charge Technique For A Voltage Regulator 有权
    电压调节器的预充电技术

    公开(公告)号：US20160370816A1

    公开(公告)日：2016-12-22

    申请号：US14740386

    申请日：2015-06-16

    Applicant: Silicon Laboratories Inc.

    Inventor： Dazhi Wei ,  Gang Yuan ,  Erik Pankratz ,  Imranul Islam ,  Praveen Kallam ,  Axel Thomsen ,  Kenneth Wilson Fernald ,  Jinwen Xiao

    IPC: G05F1/575

    CPC classification number: G05F1/575 ,  G05F1/56 ,  H02M3/1588 ,  Y02B70/1466

    Abstract: In one embodiment, an apparatus includes a controller to control a voltage regulator. The controller may have a first comparator circuit to compare a first reference voltage to a feedback voltage. In turn, the first comparator circuit may include: a first comparator having a first input terminal to receive the feedback voltage and a second input terminal to receive the reference voltage and an output node to output an error signal based on the comparison; and a first pre-charge circuit coupled between the first input terminal and the output node configured to pre-charge a first portion of a compensation network to a pre-charge level. The first controller may further include a second comparator circuit coupled to the first comparator circuit compare the error signal to a ramp signal and to generate a first control output to control a power train of the voltage regulator in a first mode of operation.

    Abstract translation: 在一个实施例中，一种装置包括用于控制电压调节器的控制器。 控制器可以具有第一比较器电路，以将第一参考电压与反馈电压进行比较。 反过来，第一比较器电路可以包括：第一比较器，具有用于接收反馈电压的第一输入端子和用于接收参考电压的第二输入端子和输出节点，以基于该比较来输出误差信号; 以及耦合在所述第一输入端子和所述输出节点之间的第一预充电电路，被配置为将补偿网络的第一部分预先充电到预充电电平。 第一控制器还可以包括耦合到第一比较器电路的第二比较器电路，将误差信号与斜坡信号进行比较，并产生第一控制输出，以在第一操作模式下控制电压调节器的传动系。

    APPARATUS FOR DIGITAL-TO-ANALOG CONVERSION WITH IMPROVED PERFORMANCE AND ASSOCIATED METHODS
    33.
    发明申请
    APPARATUS FOR DIGITAL-TO-ANALOG CONVERSION WITH IMPROVED PERFORMANCE AND ASSOCIATED METHODS 有权
    具有改进性能和相关方法的数字到模拟转换的设备

    公开(公告)号：US20160359497A1

    公开(公告)日：2016-12-08

    申请号：US14732700

    申请日：2015-06-06

    Applicant: Silicon Laboratories Inc.

    Inventor： Axel Thomsen ,  Alan L. Westwick

    IPC: H03M1/06 ,  H03M1/68 ,  H03M1/00 ,  H03M1/66

    CPC classification number: H03M1/0607 ,  H03K5/003 ,  H03M1/00 ,  H03M1/002 ,  H03M1/0609 ,  H03M1/66 ,  H03M1/664 ,  H03M1/682 ,  H03M1/747 ,  H03M1/808

    Abstract: Apparatus and associated methods are disclosed for digital-to-analog conversion with improved performance. In one exemplary embodiment, an apparatus includes a DAC to convert a digital input signal to an analog output signal. The DAC includes a decoder to decode the digital input signal and to provide first and second sets of control signals. The DAC also includes a resistor DAC (RDAC) to provide first and second voltages in response to the first set of control signals. The DAC further includes an interpolator coupled to receive the first and second voltages and to provide a first analog signal in response to the second set of control signals.

    Abstract translation: 公开了用于具有改进的性能的数模转换的装置和相关方法。 在一个示例性实施例中，装置包括将数字输入信号转换为模拟输出信号的DAC。 DAC包括解码器以解码数字输入信号并提供第一和第二组控制信号。 DAC还包括电阻DAC（RDAC），以响应于第一组控制信号来提供第一和第二电压。 DAC还包括内插器，其被耦合以接收第一和第二电压并且响应于第二组控制信号而提供第一模拟信号。

    Dual-Path Comparator and Method
    36.
    发明申请
    Dual-Path Comparator and Method 有权
    双路比较器和方法

    公开(公告)号：US20150061913A1

    公开(公告)日：2015-03-05

    申请号：US14016948

    申请日：2013-09-03

    Applicant: Silicon Laboratories Inc.

    Inventor： Xiaodong Wang ,  Shouli Yan ,  Axel Thomsen

    IPC: H03M1/42

    CPC classification number: H03M1/42 ,  H03M1/0692 ,  H03M1/188 ,  H03M1/38 ,  H03M1/403 ,  H03M1/466

    Abstract: A method includes receiving a differential voltage signal at first and second inputs of a comparator and selectively providing the differential voltage signal to one of a first conversion path and a second conversion path of the comparator during a conversion phase to determine a digital value corresponding to the differential voltage signal. The first and second conversion paths including first and second pluralities of gain stages, respectively. The method further includes coupling the selected one of the first conversion path and the second conversion path to an output to provide the digital value.

    Abstract translation: 一种方法包括在比较器的第一和第二输入处接收差分电压信号，并且在转换阶段期间选​​择性地将差分电压信号提供给比较器的第一转换路径和第二转换路径中的一个，以确定对应于 差分电压信号。 第一和第二转换路径分别包括第一和第二多个增益级。 该方法还包括将所选择的第一转换路径和第二转换路径中的一个耦合到输出以提供数字值。

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