知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

91 records (took 0.047 seconds)

    Apparatus and methods for power amplifiers
    44.
    发明授权
    Apparatus and methods for power amplifiers 有权
    功率放大器的装置和方法

    公开(公告)号：US09571049B2

    公开(公告)日：2017-02-14

    申请号：US14946032

    申请日：2015-11-19

    Applicant: SKYWORKS SOLUTIONS, INC.

    Inventor： Guohao Zhang ,  Hardik Bhupendra Modi ,  Sabah Khesbak

    IPC: H03F3/04 ,  H03F3/24 ,  H04B1/04 ,  H03F1/02 ,  H03F1/56 ,  H03F3/19 ,  H03F3/21 ,  H03F3/195

    CPC classification number: H03F3/245 ,  H01L2224/49171 ,  H03F1/0222 ,  H03F1/565 ,  H03F3/19 ,  H03F3/195 ,  H03F3/21 ,  H03F2200/102 ,  H03F2200/108 ,  H03F2200/387 ,  H03F2200/391 ,  H03F2200/451 ,  H03F2200/465 ,  H04B1/0458

    Abstract: Apparatus and methods for power amplifiers are disclosed. In one embodiment, a power amplifier circuit assembly includes a power amplifier and an impedance matching network. The impedance matching network is operatively associated with the power amplifier and is configured to provide a load line impedance to the power amplifier between about 6Ω and about 10Ω. The impedance matching network includes a fundamental matching circuit and one or more termination circuits, and the fundamental matching circuit and each of the of the one or more termination circuits include separate input terminals for coupling to an output of the power amplifier so as to allow the fundamental matching circuit and each of the one or more termination circuits to be separately tuned.

    Abstract translation: 公开了用于功率放大器的装置和方法。 在一个实施例中，功率放大器电路组件包括功率放大器和阻抗匹配网络。 阻抗匹配网络与功率放大器可操作地相关联，并且被配置为向功率放大器提供约6Ω至约10Ω的负载线路阻抗。 阻抗匹配网络包括基本匹配电路和一个或多个终端电路，并且基本匹配电路和一个或多个终端电路中的每一个包括用于耦合到功率放大器的输出的单独的输入端子，以便允许 基本匹配电路和一个或多个终端电路中的每一个被单独调谐。

    APPARATUS AND METHODS FOR WIDEBAND ENVELOPE TRACKING SYSTEMS
    46.
    发明申请
    APPARATUS AND METHODS FOR WIDEBAND ENVELOPE TRACKING SYSTEMS 有权
    用于宽带包装跟踪系统的装置和方法

    公开(公告)号：US20160050629A1

    公开(公告)日：2016-02-18

    申请号：US14754118

    申请日：2015-06-29

    Applicant: Skyworks Solutions, Inc.

    Inventor： Sabah Khesbak ,  Florinel G. Balteanu ,  Hardik Bhupendra Modi

    IPC: H04W52/02 ,  H04B1/40 ,  H03F3/21 ,  H03F1/02 ,  H03F3/19

    CPC classification number: H03F1/0227 ,  H03F3/19 ,  H03F3/245 ,  H03F3/45179 ,  H03F3/45192 ,  H03F3/68 ,  H03F2200/102 ,  H03F2200/336 ,  H03F2200/451 ,  H04W52/0261 ,  Y02B70/30 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/26

    Abstract: Apparatus and methods for wideband envelope tracking systems are disclosed herein. In certain implementations, an envelope tracker includes a DC-to-DC converter, a current digital-to-analog converter (DAC), an error amplifier, a feedback circuit, and an AC combiner. The current DAC receives a digital envelope signal, and uses the digital envelope signal to generate an envelope current. The feedback circuit is connected between an output and an inverting input of the error amplifier, and the envelope current is provided to the error amplifier's inverting input. Additionally, the AC combiner generates a power amplifier supply voltage by combining an output of the DC-to-DC converter and an output of the error amplifier.

    Abstract translation: 本文公开了宽带包络跟踪系统的装置和方法。 在某些实现中，包络跟踪器包括DC-DC转换器，当前数模转换器（DAC），误差放大器，反馈电路和AC组合器。 当前DAC接收数字包络信号，并使用数字包络信号产生包络电流。 反馈电路连接在误差放大器的输出和反相输入端之间，并且将包络电流提供给误差放大器的反相输入。 此外，AC组合器通过组合DC-DC转换器的输出和误差放大器的输出来产生功率放大器电源电压。

    Fast envelope tracking systems for power amplifiers
    48.
    发明授权
    Fast envelope tracking systems for power amplifiers 有权

    公开(公告)号：US11558015B2

    公开(公告)日：2023-01-17

    申请号：US17230269

    申请日：2021-04-14

    Applicant: Skyworks Solutions, Inc.

    Inventor： Florinel G. Balteanu ,  Serge Francois Drogi ,  Sabah Khesbak ,  Hardik Bhupendra Modi

    IPC: H03F1/02 ,  H03F3/24 ,  H03F3/189 ,  H03F3/19

    Abstract: Fast envelope tracking systems are provided herein. In certain embodiments, an envelope tracking system for a power amplifier includes a switching regulator and a differential error amplifier configured to operate in combination with one another to generate a power amplifier supply voltage for the power amplifier based on an envelope of a radio frequency (RF) signal amplified by the power amplifier. The envelope tracking system further includes a differential envelope amplifier configured to amplify a differential envelope signal to generate a single-ended envelope signal that changes in relation to the envelope of the RF signal. Additionally, the differential error amplifier generates an output current operable to adjust a voltage level of the power amplifier supply voltage based on comparing the single-ended envelope signal to a reference signal.

    APPARATUS AND METHODS FOR ENVELOPE TRACKING SYSTEMS WITH AUTOMATIC MODE SELECTION
    49.
    发明申请
    APPARATUS AND METHODS FOR ENVELOPE TRACKING SYSTEMS WITH AUTOMATIC MODE SELECTION 有权

    公开(公告)号：US20210167734A1

    公开(公告)日：2021-06-03

    申请号：US17093362

    申请日：2020-11-09

    Applicant: Skyworks Solutions, Inc.

    Inventor： Sabah Khesbak ,  Serge Francois Drogi ,  Florinel G. Balteanu

    IPC: H03F1/02 ,  H03G3/30 ,  H03G3/00 ,  H03G1/00 ,  H03F1/32 ,  H03F3/195 ,  H03F3/24 ,  H03F3/45

    Abstract: Apparatus and methods for envelope tracking systems with automatic mode selection are provided herein. In certain configurations, a power amplifier system includes a power amplifier configured to provide amplification to a radio frequency signal and to receive power from a power amplifier supply voltage, and an envelope tracker including a signal bandwidth detection circuit configured to generate a detected bandwidth signal based on processing an envelope signal corresponding to an envelope of the radio frequency signal. The envelope tracker further includes a switch bank configured to receive a plurality of regulated voltages, a filter configured to filter an output of the switch bank to generate the power amplifier supply voltage, and a mode control circuit configured to control a filtering characteristic of the filter based on the detected bandwidth signal.

Patent Agency Ranking