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    Rail-to-rail line driver using differential cascode bootstraping
    1.
    发明授权
    Rail-to-rail line driver using differential cascode bootstraping 有权
    轨到轨线路驱动器使用差分共源共栅引导

    公开(公告)号：US09281967B2

    公开(公告)日：2016-03-08

    申请号：US14090512

    申请日：2013-11-26

    Applicant: Broadcom Corporation

    Inventor： Yuan Yao ,  Jing Wang ,  Junhua Tan ,  Mostafa Mohammad Hany Ali Hammad ,  Hui Pan

    IPC: G11C8/00 ,  H04L25/02 ,  H03F3/21 ,  H03F3/45

    CPC classification number: H04L25/0272 ,  H03F3/211 ,  H03F3/45179 ,  H03F2200/456 ,  H03F2203/45311 ,  H03F2203/45356 ,  H03F2203/45394 ,  H03F2203/45481 ,  H04L25/026

    Abstract: Aspects of rail-to-rail line drivers using differential cascode bootstrapping are described. In one embodiment, a differential line driver includes first and second differential driver output legs. The first output leg includes a first p-type cascode stack and a first n-type cascode stack, and the second output leg includes a second p-type cascode stack and a second n-type cascode stack. The differential line driver also includes a differential cascode bootstrap circuit arrangement coupled to an output of the differential line driver. More particularly, the differential cascode bootstrap circuit arrangement is coupled between the first and second differential output driver legs and the output of the differential line driver. According to aspects of the embodiments described herein, differential line drivers with overvoltage protection and rail-to-rail output swings may be achieved. Further, the differential line drivers may be generally smaller, with cascode stack transistors of reduced in size.

    Abstract translation: 描述了使用差分共源共栅自举的轨到轨线路驱动器的方面。 在一个实施例中，差分线路驱动器包括第一和第二差分驱动器输出支路。 第一输出支路包括第一p型共源共栅堆叠和第一n型共源共栅堆叠，并且第二输出支路包括第二p型共源共栅堆叠和第二n型共源共栅堆叠。 差分线路驱动器还包括耦合到差分线路驱动器的输出的差分共源共栅引导电路装置。 更具体地，差分共源共栅自举电路布置耦合在第一和第二差分输出驱动器支路和差分线路驱动器的输出之间。 根据本文所描述的实施例的方面，可以实现具有过压保护和轨到轨输出摆幅的差分线路驱动器。 此外，差分线路驱动器可以通常更小，其中级联叠层晶体管的尺寸减小。

    RAIL-TO-RAIL LINE DRIVER USING DIFFERENTIAL CASCODE BOOTSTRAPING
    2.
    发明申请
    RAIL-TO-RAIL LINE DRIVER USING DIFFERENTIAL CASCODE BOOTSTRAPING 有权
    铁路线路驱动器使用差异化CASCODE BOOTSTRAPING

    公开(公告)号：US20150137887A1

    公开(公告)日：2015-05-21

    申请号：US14090512

    申请日：2013-11-26

    Applicant: Broadcom Corporation

    Inventor： Yuan Yao ,  Jing Wang ,  Junhua Tan ,  Mostafa Mohammad Hany Ali Hammad ,  Hui Pan

    IPC: H03K3/01

    CPC classification number: H04L25/0272 ,  H03F3/211 ,  H03F3/45179 ,  H03F2200/456 ,  H03F2203/45311 ,  H03F2203/45356 ,  H03F2203/45394 ,  H03F2203/45481 ,  H04L25/026

    Abstract: Aspects of rail-to-rail line drivers using differential cascode bootstrapping are described. In one embodiment, a differential line driver includes first and second differential driver output legs. The first output leg includes a first p-type cascode stack and a first n-type cascode stack, and the second output leg includes a second p-type cascode stack and a second n-type cascode stack. The differential line driver also includes a differential cascode bootstrap circuit arrangement coupled to an output of the differential line driver. More particularly, the differential cascode bootstrap circuit arrangement is coupled between the first and second differential output driver legs and the output of the differential line driver. According to aspects of the embodiments described herein, differential line drivers with overvoltage protection and rail-to-rail output swings may be achieved. Further, the differential line drivers may be generally smaller, with cascode stack transistors of reduced in size.

    Abstract translation: 描述了使用差分共源共栅自举的轨到轨线路驱动器的方面。 在一个实施例中，差分线路驱动器包括第一和第二差分驱动器输出支路。 第一输出支路包括第一p型共源共栅堆叠和第一n型共源共栅堆叠，并且第二输出支路包括第二p型共源共栅堆叠和第二n型共源共栅堆叠。 差分线路驱动器还包括耦合到差分线路驱动器的输出的差分共源共栅引导电路装置。 更具体地，差分共源共栅自举电路布置耦合在第一和第二差分输出驱动器支路和差分线路驱动器的输出之间。 根据本文所描述的实施例的方面，可以实现具有过压保护和轨到轨输出摆幅的差分线路驱动器。 此外，差分线路驱动器可以通常更小，其中级联叠层晶体管的尺寸减小。

    Current-mode line driver
    3.
    发明授权
    Current-mode line driver 有权
    电流模式线驱动

    公开(公告)号：US08866552B2

    公开(公告)日：2014-10-21

    申请号：US13721786

    申请日：2012-12-20

    Applicant: Broadcom Corporation

    Inventor： Hui Pan ,  Yuan Yao ,  Mostafa Hammad ,  Karim Vincent Abdelhalim ,  Junhua Tan ,  Ichiro Fujimori

    IPC: H03F3/45 ,  H03F3/68

    CPC classification number: H03F3/45179 ,  H03F3/45183 ,  H03F3/45632 ,  H03F3/68 ,  H03F2203/45418 ,  H03F2203/45424 ,  H03F2203/45648

    Abstract: Disclosed are various embodiments of a current-mode line driver that may facilitate transmitting signals to a load. The current-mode line driver may comprise a common-mode current sense element that provides a signal corresponding to the common-mode output current of the line driver. A transconductance element receives the signal from the common-mode current sense element and provides a compensating current that is based at least in part on the signal. The compensating current may reduce the common-mode output current of the line driver.

    Abstract translation: 公开了可以有助于将信号发送到负载的电流模式线路驱动器的各种实施例。 电流模式线路驱动器可以包括提供对应于线路驱动器的共模输出电流的信号的共模电流检测元件。 跨导元件从共模电流检测元件接收信号，并提供至少部分地基于该信号的补偿电流。 补偿电流可能会降低线路驱动器的共模输出电流。

    Voltage supply for supplying in zones voltages proportional to a master supply votlage using voltage mirroring
    4.
    发明授权
    Voltage supply for supplying in zones voltages proportional to a master supply votlage using voltage mirroring 有权
    电压供应，使用电压镜像提供与主电源成正比的区域电压

    公开(公告)号：US09459646B2

    公开(公告)日：2016-10-04

    申请号：US14601062

    申请日：2015-01-20

    Applicant: BROADCOM CORPORATION

    Inventor： Junhua Tan ,  Yuan Yao ,  Jing Wang ,  Hui Pan

    IPC: G05F3/02 ,  G05F1/10 ,  G05F3/26

    CPC classification number: G05F3/262

    Abstract: A scaled voltage supply to supply voltage biases to circuits in voltage zones. The scaled voltage supply includes a master voltage corresponding to a voltage drop across a master-upper rail having a voltage Vdd and a master-lower rail having a voltage Vss=0. Further, the supply includes a voltage-divider network dividing the master voltage Vdd into intermediate voltages αVdd, βVdd, etc., wherein α and β are predetermined constants. These intermediate voltages scale with the master voltage and are supplied to the voltage zones using non-invasive soft rails. In one implementation the soft rails use voltage mirrors to supply the intermediate voltages to the circuits within voltage zones.

    Abstract translation: 电压电压的电压供应电压偏压到电压区中的电路。 缩放的电压源包括对应于具有电压Vdd的主 - 上导轨上的电压降的主电压和具有电压Vss = 0的主 - 下导轨。 此外，电源包括将主电压Vdd分为中间电压αVdd，βVdd等的分压网络，其中α和β是预定常数。 这些中间电压与主电压成比例，并使用非侵入式软轨提供给电压区。 在一个实施方案中，软轨使用电压镜将中间电压提供给电压区内的电路。

    CURRENT-MODE LINE DRIVER
    6.
    发明申请
    CURRENT-MODE LINE DRIVER 有权
    电流模式线驱动器

    公开(公告)号：US20140167851A1

    公开(公告)日：2014-06-19

    申请号：US13721786

    申请日：2012-12-20

    Applicant: BROADCOM CORPORATION

    Inventor： Hui Pan ,  Yuan Yao ,  Mostafa Hammad ,  Karim Vincent Abdelhalim ,  Junhua Tan ,  Ichiro Fujimori

    IPC: H03F3/45 ,  H03F3/68

    CPC classification number: H03F3/45179 ,  H03F3/45183 ,  H03F3/45632 ,  H03F3/68 ,  H03F2203/45418 ,  H03F2203/45424 ,  H03F2203/45648

    Abstract: Disclosed are various embodiments of a current-mode line driver that may facilitate transmitting signals to a load. The current-mode line driver may comprise a common-mode current sense element that provides a signal corresponding to the common-mode output current of the line driver. A transconductance element receives the signal from the common-mode current sense element and provides a compensating current that is based at least in part on the signal. The compensating current may reduce the common-mode output current of the line driver.

    Abstract translation: 公开了可以有助于将信号发送到负载的电流模式线路驱动器的各种实施例。 电流模式线路驱动器可以包括提供对应于线路驱动器的共模输出电流的信号的共模电流检测元件。 跨导元件从共模电流检测元件接收信号，并提供至少部分地基于该信号的补偿电流。 补偿电流可能会降低线路驱动器的共模输出电流。

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