Low-power ethernet transmitter
    1.
    发明授权
    Low-power ethernet transmitter 有权
    低功耗以太网发射机

    公开(公告)号:US08598906B2

    公开(公告)日:2013-12-03

    申请号:US11798334

    申请日:2007-05-11

    IPC分类号: H03K19/17

    摘要: An electrical circuit comprising a line driver for providing Ethernet signals is disclosed. The line driver comprises a voltage mode line driver for producing 1000BT and 100BT Ethernet signals and an active output impedance line driver arranged parallel to the voltage mode line driver. The line driver is capable of producing 1000BT or 100BT or 10BT Ethernet signals, wherein either the voltage mode line driver or the active impedance line driver is active.

    摘要翻译: 公开了一种包括用于提供以太网信号的线路驱动器的电路。 线路驱动器包括用于产生1000BT和100BT以太网信号的电压模式线路驱动器和与电压模式线路驱动器并联布置的有源输出阻抗线路驱动器。 线路驱动器能够产生1000BT或100BT或10BT以太网信号,其中电压模式线路驱动器或有源阻抗线路驱动器是活动的。

    Low-power ethernet transmitter
    2.
    发明申请
    Low-power ethernet transmitter 有权
    低功耗以太网发射机

    公开(公告)号:US20070296456A1

    公开(公告)日:2007-12-27

    申请号:US11798334

    申请日:2007-05-11

    IPC分类号: H03K17/16

    摘要: An electrical circuit comprising a line driver for providing Ethernet signals is disclosed. The line driver comprises a voltage mode line driver for producing 1000BT and 100BT Ethernet signals and an active output impedance line driver arranged parallel to the voltage mode line driver. The line driver is capable of producing 1000BT or 100BT or 10BT Ethernet signals, wherein either the voltage mode line driver or the active impedance line driver is active.

    摘要翻译: 公开了一种包括用于提供以太网信号的线路驱动器的电路。 线路驱动器包括用于产生1000BT和100BT以太网信号的电压模式线路驱动器和与电压模式线路驱动器并联布置的有源输出阻抗线路驱动器。 线路驱动器能够产生1000BT或100BT或10BT以太网信号,其中电压模式线路驱动器或有源阻抗线路驱动器是活动的。

    Method and system for a power reduction scheme for Ethernet PHYs
    3.
    发明授权
    Method and system for a power reduction scheme for Ethernet PHYs 有权
    用于以太网PHY功率降低方案的方法和系统

    公开(公告)号:US08325756B2

    公开(公告)日:2012-12-04

    申请号:US11734147

    申请日:2007-04-11

    IPC分类号: H04L12/66

    CPC分类号: H04L12/66

    摘要: Aspects of a method and system for a power reduction scheme for Ethernet PHYs are provided. An Ethernet PHY in a link partner may disable transmission via a transmit DAC integrated during an inactive connection, 10Base-T autonegotiation operation, and/or active 10Base-T connection with no data packet transmission. The DAC may be a voltage mode or current mode DAC. The PHY or a MAC device may determine when to disable transmission via the DAC. In this regard, the PHY or the MAC device may generate appropriate signals for disabling the transmission. The DAC may be enabled for transmission by the PHY or the MAC device when a connection becomes active or when an active 10Base-T connection is ready to transmit data. Moreover, the PHY may enable transmission via the DAC when operating in a forced 10Base-T mode of operation and the connection to the link partner is active.

    摘要翻译: 提供了用于以太网PHY的功率降低方案的方法和系统的方面。 链路伙伴中的以太网PHY可以通过在无数据分组传输的非活动连接,10Base-T自动协商操作和/或活动10Base-T连接期间集成的发送DAC禁用传输。 DAC可以是电压模式或电流模式DAC。 PHY或MAC设备可以确定何时禁用经由DAC的传输。 在这方面,PHY或MAC设备可以产生用于禁止传输的适当信号。 当连接变为活动时或当有效的10Base-T连接准备好传输数据时,DAC可以被PHY或MAC设备启用。 此外,当以强制10Base-T操作模式操作时,PHY可以经由DAC进行传输,并且与链路伙伴的连接是活动的。

    Method And System For A Power Reduction Scheme For Ethernet PHYS
    4.
    发明申请
    Method And System For A Power Reduction Scheme For Ethernet PHYS 审中-公开
    用于以太网PHYS的功率降​​低方案的方法和系统

    公开(公告)号:US20130182717A1

    公开(公告)日:2013-07-18

    申请号:US13666901

    申请日:2012-11-01

    IPC分类号: H04L12/56

    CPC分类号: H04L12/66

    摘要: Aspects of a method and system for a power reduction scheme for Ethernet PHYs are provided. An Ethernet PHY in a link partner may disable transmission via a transmit DAC integrated during an inactive connection, 10Base-T autonegotiation operation, and/or active 10Base-T connection with no data packet transmission. The DAC may be a voltage mode or current mode DAC. The PHY or a MAC device may determine when to disable transmission via the DAC. In this regard, the PHY or the MAC device may generate appropriate signals for disabling the transmission. The DAC may be enabled for transmission by the PHY or the MAC device when a connection becomes active or when an active 10Base-T connection is ready to transmit data. Moreover, the PHY may enable transmission via the DAC when operating in a forced 10Base-T mode of operation and the connection to the link partner is active.

    摘要翻译: 提供了用于以太网PHY的功率降低方案的方法和系统的方面。 链路伙伴中的以太网PHY可以通过在无数据分组传输的非活动连接,10Base-T自动协商操作和/或活动10Base-T连接期间集成的发送DAC禁用传输。 DAC可以是电压模式或电流模式DAC。 PHY或MAC设备可以确定何时禁用经由DAC的传输。 在这方面,PHY或MAC设备可以产生用于禁止传输的适当信号。 当连接变为活动时或当有效的10Base-T连接准备好传输数据时,DAC可以被PHY或MAC设备启用。 此外,当以强制10Base-T操作模式操作时,PHY可以经由DAC进行传输,并且与链路伙伴的连接是活动的。

    METHOD AND SYSTEM FOR A POWER REDUCTION SCHEME FOR ETHERNET PHYS
    5.
    发明申请
    METHOD AND SYSTEM FOR A POWER REDUCTION SCHEME FOR ETHERNET PHYS 有权
    用于以太网的功率降低方案的方法和系统

    公开(公告)号:US20080253356A1

    公开(公告)日:2008-10-16

    申请号:US11734147

    申请日:2007-04-11

    IPC分类号: H04L12/66

    CPC分类号: H04L12/66

    摘要: Aspects of a method and system for a power reduction scheme for Ethernet PHYs are provided. An Ethernet PHY in a link partner may disable transmission via a transmit DAC integrated during an inactive connection, 10Base-T autonegotiation operation, and/or active 10Base-T connection with no data packet transmission. The DAC may be a voltage mode or current mode DAC. The PHY or a MAC device may determine when to disable transmission via the DAC. In this regard, the PHY or the MAC device may generate appropriate signals for disabling the transmission. The DAC may be enabled for transmission by the PHY or the MAC device when a connection becomes active or when an active 10Base-T connection is ready to transmit data. Moreover, the PHY may enable transmission via the DAC when operating in a forced 10Base-T mode of operation and the connection to the link partner is active.

    摘要翻译: 提供了用于以太网PHY的功率降低方案的方法和系统的方面。 链路伙伴中的以太网PHY可以通过在无数据分组传输的非活动连接,10Base-T自动协商操作和/或活动10Base-T连接期间集成的发送DAC禁用传输。 DAC可以是电压模式或电流模式DAC。 PHY或MAC设备可以确定何时禁用经由DAC的传输。 在这方面,PHY或MAC设备可以产生用于禁止传输的适当信号。 当连接变为活动时或当有效的10Base-T连接准备好传输数据时,DAC可以被PHY或MAC设备启用。 此外,当以强制10Base-T操作模式操作时,PHY可以经由DAC进行传输,并且与链路伙伴的连接是活动的。

    Mode Dependent Driving of the Center Tap in Ethernet Communications
    6.
    发明申请
    Mode Dependent Driving of the Center Tap in Ethernet Communications 有权
    以太网通信中的中心点的方式驱动

    公开(公告)号:US20120038393A1

    公开(公告)日:2012-02-16

    申请号:US12855432

    申请日:2010-08-12

    IPC分类号: H03K3/00

    摘要: An output stage comprising a current mode line driver, a voltage mode line driver, and a center-tapped transformer for coupling data provided by the line drivers to a transmission line is provided herein. The output stage is configured to operate in a backwards compatible Ethernet communication device. For example, the Ethernet communication device is configured to support 10G Ethernet and legacy Ethernet modes of 10BASE-T, 100BASE-T, and 1000BASE-T. The current mode line driver can be utilized while operating in the 10G Ethernet mode to provide high linearity. The voltage mode line driver can be utilized while operating in legacy mode to conserve power. In order to accommodate the use of two different line drivers, a switch and/or a voltage regulator is used to couple/decouple a dc voltage to a center-tap of the transformer based on which of the two different line drivers is currently active.

    摘要翻译: 本文提供了一种包括电流模式线驱动器,电压模式线驱动器和用于将线驱动器提供给传输线的数据耦合的中心抽头变压器的输出级。 输出级被配置为在向后兼容的以太网通信设备中操作。 例如,以太网通信设备被配置为支持10BASE-T,100BASE-T和1000BASE-T的10G以太网和传统以太网模式。 当在10G以太网模式下工作时,可以利用当前的模式线路驱动器来提供高线性度。 电压模式线路驱动器可以在传统模式下工作以节省电力。 为了适应两种不同的线路驱动器的使用,开关和/或电压调节器用于基于两个不同的线路驱动器当前处于活动状态,将直流电压耦合到/去耦合到变压器的中心抽头。

    Mode dependent driving of the center tap in ethernet communications
    7.
    发明授权
    Mode dependent driving of the center tap in ethernet communications 有权
    以太网通讯中心抽头的方式驱动

    公开(公告)号:US08446184B2

    公开(公告)日:2013-05-21

    申请号:US12855432

    申请日:2010-08-12

    IPC分类号: H03K3/00

    摘要: An output stage comprising a current mode line driver, a voltage mode line driver, and a center-tapped transformer for coupling data provided by the line drivers to a transmission line is provided herein. The output stage is configured to operate in a backwards compatible Ethernet communication device. For example, the Ethernet communication device is configured to support 10G Ethernet and legacy Ethernet modes of 10BASE-T, 100BASE-T, and 1000BASE-T. The current mode line driver can be utilized while operating in the 10G Ethernet mode to provide high linearity. The voltage mode line driver can be utilized while operating in legacy mode to conserve power. In order to accommodate the use of two different line drivers, a switch and/or a voltage regulator is used to couple/decouple a dc voltage to a center-tap of the transformer based on which of the two different line drivers is currently active.

    摘要翻译: 本文提供了一种包括电流模式线驱动器,电压模式线驱动器和用于将线驱动器提供给传输线的数据耦合的中心抽头变压器的输出级。 输出级被配置为在向后兼容的以太网通信设备中操作。 例如,以太网通信设备被配置为支持10BASE-T,100BASE-T和1000BASE-T的10G以太网和传统以太网模式。 当在10G以太网模式下工作时,可以利用当前的模式线路驱动器来提供高线性度。 电压模式线路驱动器可以在传统模式下工作以节省电力。 为了适应两种不同的线路驱动器的使用,开关和/或电压调节器用于基于两个不同的线路驱动器当前处于活动状态来将直流电压耦合到/去耦合到变压器的中心抽头。

    High-efficiency class-AB amplifier
    9.
    发明授权
    High-efficiency class-AB amplifier 有权
    高效率AB类放大器

    公开(公告)号:US07701295B2

    公开(公告)日:2010-04-20

    申请号:US11798293

    申请日:2007-05-11

    IPC分类号: H03F1/52

    摘要: A high efficiency class-AB amplifier is disclosed. The amplifier comprises a first input stage and a second input stage, both coupled to a class-AB biasing mesh and an output stage, wherein the outputs of the first and second input stages are directly coupled to the output transistors in the output stage. In one embodiment, a first gate of the first input stage and of the second input stage are coupled together to receive the same input and a second gate of the first input stage and of the second input stage are coupled together to receive the same input. In another embodiment, the first input stage and second input stage may further comprise cascode transistors for coupling the two input stages to the class-AB biasing mesh. In yet another embodiment, a 3V supply is used and 1V transistors are used to improve gain and 3V transistors are used to protect the 1V transistors.

    摘要翻译: 公开了一种高效率AB类放大器。 放大器包括耦合到AB类偏置网格和输出级的第一输入级和第二输入级,其中第一和第二输入级的输出直接耦合到输出级中的输出晶体管。 在一个实施例中,第一输入级和第二输入级的第一栅极耦合在一起以接收相同的输入,并且第一输入级和第二输入级的第二栅极耦合在一起以接收相同的输入。 在另一个实施例中,第一输入级和第二输入级还可以包括用于将两个输入级耦合到AB类偏置网的共源共栅晶体管。 在另一个实施例中,使用3V电源,并且使用1V晶体管来改善增益,并且使用3V晶体管来保护1V晶体管。