BIAS CURRENT MONITOR AND CONTROL MECHANISM FOR AMPLIFIERS
    11.
    发明申请
    BIAS CURRENT MONITOR AND CONTROL MECHANISM FOR AMPLIFIERS 有权
    偏置电流监视器和放大器的控制机制

    公开(公告)号:US20130127545A1

    公开(公告)日:2013-05-23

    申请号:US13741571

    申请日:2013-01-15

    CPC classification number: H03F1/301 H03F1/30 H03F3/04 H03F3/189

    Abstract: Techniques for monitoring and controlling bias current of amplifiers are described. In an exemplary design, an apparatus may include an amplifier and a bias circuit. The amplifier may include at least one transistor coupled to an inductor. The bias circuit may generate at least one bias voltage for the at least one transistor in the amplifier to obtain a target bias current for the amplifier. The bias circuit may generate the at least one bias voltage based on a voltage across the inductor in the amplifier, or a current through a current mirror formed with one of the at least one transistor in the amplifier, or a gate-to-source voltage of one of the at least one transistor in the amplifier, or a voltage in a replica circuit replicating the amplifier, or a current applied to the amplifier with a switched mode power supply disabled.

    Abstract translation: 描述了用于监视和控制放大器偏置电流的技术。 在示例性设计中,装置可以包括放大器和偏置电路。 放大器可以包括耦合到电感器的至少一个晶体管。 偏置电路可以为放大器中的至少一个晶体管产生至少一个偏置电压,以获得放大器的目标偏置电流。 偏置电路可以基于放大器中的电感器两端的电压或通过放大器中的至少一个晶体管中的一个形成的电流镜的电流或栅极至源极电压来产生至少一个偏置电压 放大器中的至少一个晶体管中的一个,或复制放大器的复制电路中的电压,或禁用开关模式电源的施加到放大器的电流。

    BIAS CURRENT MONITOR AND CONTROL MECHANISM FOR AMPLIFIERS

    公开(公告)号:US20130127546A1

    公开(公告)日:2013-05-23

    申请号:US13741592

    申请日:2013-01-15

    CPC classification number: H03F1/301 H03F1/30 H03F3/04 H03F3/189

    Abstract: Techniques for monitoring and controlling bias current of amplifiers are described. In an exemplary design, an apparatus may include an amplifier and a bias circuit. The amplifier may include at least one transistor coupled to an inductor. The bias circuit may generate at least one bias voltage for the at least one transistor in the amplifier to obtain a target bias current for the amplifier. The bias circuit may generate the at least one bias voltage based on a voltage across the inductor in the amplifier, or a current through a current mirror formed with one of the at least one transistor in the amplifier, or a gate-to-source voltage of one of the at least one transistor in the amplifier, or a voltage in a replica circuit replicating the amplifier, or a current applied to the amplifier with a switched mode power supply disabled.

    REDUCED POWER-CONSUMPTION RECEIVERS
    17.
    发明申请
    REDUCED POWER-CONSUMPTION RECEIVERS 审中-公开
    减少功耗接收器

    公开(公告)号:US20140105336A1

    公开(公告)日:2014-04-17

    申请号:US14133280

    申请日:2013-12-18

    CPC classification number: H04W52/0206 H03G3/20 H04B1/16

    Abstract: An exemplary embodiment disclosed comprises a mixer having a plurality of input leads; a first degenerative impedance element coupled to a first input lead of the mixer; a second degenerative impedance element coupled to a second input lead of the mixer; and a local oscillator (LO) system comprising a plurality of duty cycle modes to generate a LO signal for the mixer, the local oscillator system operates in a first duty cycle based on a first gain state of the mixer, and in a second duty cycle based on a second gain state of the mixer.

    Abstract translation: 公开的示例性实施例包括具有多个输入引线的混合器; 耦合到混合器的第一输入引线的第一退化阻抗元件; 耦合到混合器的第二输入引线的第二退化阻抗元件; 以及本地振荡器(LO)系统,其包括多个占空比模式以产生混频器的LO信号,本地振荡器系统基于混频器的第一增益状态在第一占空比中工作,并且在第二占空比 基于混频器的第二增益状态。

    FILTERS FOR MULTI-BAND WIRELESS DEVICE
    18.
    发明申请
    FILTERS FOR MULTI-BAND WIRELESS DEVICE 有权
    多带无线设备滤波器

    公开(公告)号:US20140073267A1

    公开(公告)日:2014-03-13

    申请号:US13653030

    申请日:2012-10-16

    Abstract: Techniques to implement a filter for a selected signal path by reusing a circuit component in an unselected signal path are disclosed. In an exemplary design, an apparatus includes first, second, and third circuits. The first circuit passes a first radio frequency (RF) signal to an antenna when a first signal path is selected. The second circuit passes a second RF signal to the antenna when a second signal path is selected. The third circuit is selectively coupled to the first circuit, e.g., via a switch. The first and third circuits form a filter for the second RF signal (e.g., to attenuate a harmonic of the second RF signal) when the second signal path is selected and the first signal path is unselected. The first circuit may include a series inductor, and the third circuit may include a shunt capacitor.

    Abstract translation: 公开了通过重新使用未选信号路径中的电路部件来实现所选信号路径的滤波器的技术。 在示例性设计中,装置包括第一,第二和第三电路。 当选择第一信号路径时,第一电路将第一射频(RF)信号传递到天线。 当选择第二信号路径时,第二电路将第二RF信号传递到天线。 第三电路例如经由开关选择性地耦合到第一电路。 当选择第二信号路径并且未选择第一信号路径时,第一和第三电路形成用于第二RF信号的滤波器(例如,衰减第二RF信号的谐波)。 第一电路可以包括串联电感器,并且第三电路可以包括并联电容器。

    Lateral devices in silicon-on-insulator (SOI) technology

    公开(公告)号:US10424641B1

    公开(公告)日:2019-09-24

    申请号:US15958185

    申请日:2018-04-20

    Abstract: Certain aspects of the present disclosure provide a semiconductor device. One example semiconductor device generally includes a first semiconductor region; a first non-insulative region disposed adjacent to a first lateral side of the first semiconductor region; a second non-insulative region disposed adjacent to a second lateral side of the first semiconductor region, the second lateral side being opposite to the first lateral side; a second semiconductor region disposed adjacent to a third lateral side of the first semiconductor region, the second semiconductor region and the first semiconductor region having at least one of different doping types or different doping concentrations; an insulative layer adjacent to a top side of the first semiconductor region; and a third non-insulative region, the insulative layer being disposed between the third non-insulative region and the first semiconductor region.

    Multi-mode multi-band power amplifiers
    20.
    发明授权
    Multi-mode multi-band power amplifiers 有权
    多模式多频段功率放大器

    公开(公告)号:US09160377B2

    公开(公告)日:2015-10-13

    申请号:US13720851

    申请日:2012-12-19

    Abstract: Exemplary embodiments are directed to an amplifier module which may comprise a transmit path including a first amplifier and a second amplifier. The exemplary amplifier module may further include a transformer coupled between the first amplifier and the second amplifier and switchably configured for coupling the first amplifier in series with the second amplifier in a first mode and coupling the first amplifier to bypass the second amplifier in a second mode.

    Abstract translation: 示例性实施例涉及放大器模块,其可以包括包括第一放大器和第二放大器的发射路径。 示例性放大器模块还可以包括耦合在第一放大器和第二放大器之间的变压器,并且可切换地配置用于以第一模式将第一放大器与第二放大器串联耦合,并且以第二模式耦合第一放大器旁路第二放大器 。

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