会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 14. 发明授权
    • Balance and protection for stacked RF amplifiers
    • 堆叠式RF放大器的平衡和保护
    • US5121084A
    • 1992-06-09
    • US501649
    • 1990-03-29
    • James A. Anderson, deceasedCarlos H. GonzalezRobert F. McClanahanRobert D. Washburn
    • James A. Anderson, deceasedCarlos H. GonzalezRobert F. McClanahanRobert D. Washburn
    • H03F1/02H03F1/52H03F3/42H03F3/60
    • H03F3/602H03F1/0283H03F1/52H03F3/42
    • A balance circuit for an amplifier circuit having 2.sup.M amplifiers serially biased across a supply potential node and a common potential node, where M is an integer greater than 0, and having respective 2.sup.M -1 interstage bias nodes and voltages between the amplifiers which are driven by respective input drive signals provided by 2.sup.M -1 2-way power splitters. A voltage reference circuit provides as to each power splitter first and second reference potentials respectively associated therewith. A plurality of control circuits are associated with respective power splitters and interstage nodes. Each control circuit is responsive to the associated first and second reference potentials and the interstage bias node for controlling the signal levels of the first and second drive signals provided by the associated 2-way splitter as a function of the associated interstage bias potential relative to the first and second reference potentials.
    • 一种用于放大器电路的平衡电路,具有串联偏置在电源电位节点和公共电势节点上的2M放大器电路,其中M是大于0的整数,并且在放大器之间具有相应的2M-1级间偏置节点和电压,所述放大器由 由2M-1个2路分路器提供的各个输入驱动信号。 电压参考电路为每个功率分配器提供与其分别相关联的第一和第二参考电位。 多个控制电路与相应的功率分配器和级间节点相关联。 每个控制电路响应于相关联的第一和第二参考电位和级间偏置节点,用于控制由相关联的双向分路器提供的第一和第二驱动信号的信号电平作为相关联的级间偏置电位的函数 第一和第二参考电位。
    • 20. 发明授权
    • Amplifier drive controller
    • 放大器驱动控制器
    • US4999583A
    • 1991-03-12
    • US486574
    • 1990-02-28
    • Robert D. WashburnRobert F. McClanahanRobert S. Wedeen
    • Robert D. WashburnRobert F. McClanahanRobert S. Wedeen
    • H03G3/20
    • H03G3/3047
    • An amplifier drive control circuit having a power combiner for combining an RF input signal with a feedback signal to provide a composite RF signal, a power control circuit for providing a selectively attenuated replica of the composite RF signal to the input of the amplifier, and feedback circuitry connected between the output of the amplifier and the power combiner for providing a level controlled portion of the output of the amplifier as the feedback signal. The power control circuit selectively attenuates the replica of the composite RF signal when the power of the composite RF signal exceeds a predetermined threshold, while the feedback circuitry controls the level of the feedback signal as a function of the gain of the amplifier as determined by the level of the composite RF signal and the level of the amplifier output. The feedback circuitry includes a feedback phase control circuit for controlling the phase of the feedback signal relative to the input to the amplifier.
    • 一种放大器驱动控制电路,具有功率组合器,用于将RF输入信号与反馈信号组合以提供复合RF信号;功率控制电路,用于向放大器的输入提供复合RF信号的选择性衰减的副本,以及反馈 连接在放大器的输出端和功率合成器之间的电路,用于提供放大器输出的电平受控部分作为反馈信号。 当复合RF信号的功率超过预定阈值时,功率控制电路选择性地衰减复合RF信号的副本,而反馈电路控制反馈信号的电平作为由放大器的增益确定的函数 复合RF信号的电平和放大器输出的电平。 反馈电路包括反馈相位控制电路,用于相对于放大器的输入来控制反馈信号的相位。