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    POWER AMPLIFIER CONTROL
    61.
    发明申请
    POWER AMPLIFIER CONTROL 审中-公开

    公开(公告)号：WO2002101944A3

    公开(公告)日：2002-12-19

    申请号：PCT/US2002/016636

    申请日：2002-05-29

    Applicant: RF MICRO DEVICES, INC.

    Inventor： EPPERSON, Darrell ,  QUIST, Leendert

    IPC: H03G3/30

    Abstract: The present invention provides for power amplifier control of amplifier circuitry including an input stage and one or more output stages. The input stage is powered separately from the output stage by a relatively fixed power source. The one or more output stages are supplied with power via a voltage regulator having a controllable output voltage. A closed loop control integrated with the amplifier stages forces the voltage output of the voltage regulator to track the profile of an adjustable control signal, such as V RAMP .

    MULTIPATH PARAMETER ESTIMATION IN SPREAD-SPECTRUM COMMUNICATIONS SYSTEMS
    62.
    发明申请
    MULTIPATH PARAMETER ESTIMATION IN SPREAD-SPECTRUM COMMUNICATIONS SYSTEMS 审中-公开
    广播通信系统中的多路径参数估计

    公开(公告)号：WO0211300A3

    公开(公告)日：2002-07-25

    申请号：PCT/US0123661

    申请日：2001-07-27

    Applicant: RF MICRO DEVICES INC

    Inventor： SHAN PEIJUN ,  KING ERIC J

    IPC: H04B1/7113 ,  H04B1/7115 ,  H04B1/7117 ,  H04B1/7183 ,  H04B1/707 ,  H04L25/02

    CPC classification number: H04B1/7115 ,  H04B1/7113 ,  H04B1/7117 ,  H04B1/7183

    Abstract: A training circuit includes resources for processing magnitude and phase information received in a main propagation path signal with magnitude and phase information concurrently received in a secondary propagation path signal to determine values for magnitude, phase, and time offset of the secondary propagation path signal relative to the main propagation path signal. The training circuit can identify time offsets less than or greater than a symbol period, for either leading or lagging secondary path time offsets. A phase difference circuit, further included in the training circuit, determines a phase offset for the secondary propagation path signal relative to the main propagation path signal using main and secondary propagation path symbol phase values in combination with the time offset information. The relative magnitude, phase, and time information represents a characterization of the secondary propagation path with respect to the main propagation path.

    Abstract translation: 训练电路包括用于处理在主传播路径信号中接收的幅度和相位信息的资源，其中幅度和相位信息在次传播路径信号中同时接收，以确定次传播路径信号相对于第二传播路径信号的幅度，相位和时间偏移的值 主传播路径信号。 训练电路可以识别小于或大于符号周期的时间偏移，用于前导或滞后次要路径时间偏移。 进一步包括在训练电路中的相位差电路使用与时间偏移信息相结合的主传播路径符号相位值和次传播路径符号相位值来确定相对于主传播路径信号的次传播路径信号的相位偏移。 相对幅度，相位和时间信息表示相对于主传播路径的次传播路径的表征。

    INGRATED RF POWER SENSOR THAT COMPENSATES FOR BIAS CHANGES
    63.
    发明申请
    INGRATED RF POWER SENSOR THAT COMPENSATES FOR BIAS CHANGES 审中-公开
    集成射频功率传感器，补偿偏置变化

    公开(公告)号：WO0156176A3

    公开(公告)日：2001-12-13

    申请号：PCT/US0100613

    申请日：2001-01-09

    Applicant: RF MICRO DEVICES INC

    Inventor： DENING DAVID C ,  AUGUSTINE PAUL J

    IPC: H03F1/02 ,  H03G3/30

    CPC classification number: H03F1/0261 ,  H03F2200/504

    Abstract: A system for controlling a bias circuit by sensing RF amplifier output power and compensating for a dominating quiescent bias current includes an amplifier transistor and two sampling transistors. The two sampling transistors are physically smaller than the amplifier transistor, and are preferably the same size. The first sampling transistor is configured to sample the same RF input signal that is amplified by the amplifier transistor. The second sampling transistor is configured to receive and amplify only a bias network signal. The bias network associated with the transistors includes a selection of components based upon operating parameters as well as actual physical sizes of the transistors. The selection of component values in association with transistor sizes is used to enable generation of a current sensing signal that is proportional to the power level of the RF output signal generated by the amplifier transistor. The bias current to the amplifier transistor is controlled by an operational amplifier that is fed with a reference voltage and the dc bias detected by the second small transistor.

    Abstract translation: 通过感测RF放大器输出功率并补偿主导静态偏置电流来控制偏置电路的系统包括放大器晶体管和两个采样晶体管。 两个采样晶体管在物理上比放大器晶体管小，并且优选具有相同的尺寸。 第一采样晶体管被配置为采样由放大器晶体管放大的相同RF输入信号。 第二采样晶体管被配置为仅接收和放大偏置网络信号。 与晶体管相关联的偏压网络包括基于操作参数以及晶体管的实际物理尺寸的部件选择。 使用与晶体管尺寸相关联的元件值的选择来使得能够生成与由放大器晶体管生成的RF输出信号的功率电平成比例的电流感测信号。 放大器晶体管的偏置电流由一个运算放大器控制，该运算放大器由参考电压供电，第二个小晶体管检测到直流偏置。

    SEMICONDUCTOR DEVICE WITH ELECTRICAL OVERSTRESS (EOS) PROTECTION
    65.
    发明申请
    SEMICONDUCTOR DEVICE WITH ELECTRICAL OVERSTRESS (EOS) PROTECTION 审中-公开
    具有电子超（EOS）保护功能的半导体器件

    公开(公告)号：WO2014031813A4

    公开(公告)日：2014-05-30

    申请号：PCT/US2013056105

    申请日：2013-08-22

    Applicant: RF MICRO DEVICES INC

    Inventor： RITENOUR ANDREW P

    IPC: H01C7/12 ,  H01L27/02

    CPC classification number: H01L27/0629 ,  H01L27/0248 ,  H01L29/2003 ,  H01L29/778

    Abstract: A semiconductor device with electrical overstress (EOS) protection is disclosed. The semiconductor device includes a semi-insulating layer, a first contact disposed onto the semi-insulating layer, and a second contact disposed onto the semi-insulating layer. A passivation layer is disposed onto the semi-insulating layer. The passivation layer has a dielectric strength that is greater than that of the semi-insulating layer to ensure that a voltage breakdown occurs within the semi-insulating layer within a semi-insulating region between the first contact and the second contact before a voltage breakdown can occur in the passivation layer.

    Abstract translation: 公开了具有电应力（EOS）保护的半导体器件。 半导体器件包括半绝缘层，设置在半绝缘层上的第一触点和设置在半绝缘层上的第二触点。 钝化层设置在半绝缘层上。 钝化层的绝缘强度大于半绝缘层的绝缘强度，以确保在电压击穿之前在第一接触件和第二接触件之间的半绝缘区域内的半绝缘层内发生电压击穿 发生在钝化层中。

    TRANSITIONING FROM ENVELOPE TRACKING TO AVERAGE POWER TRACKING
    66.
    发明申请
    TRANSITIONING FROM ENVELOPE TRACKING TO AVERAGE POWER TRACKING 审中-公开
    从包装跟踪到平均功率跟踪的转换

    公开(公告)号：WO2014062902A1

    公开(公告)日：2014-04-24

    申请号：PCT/US2013/065403

    申请日：2013-10-17

    Applicant: RF MICRO DEVICES, INC

    Inventor： KHLAT, Nadim ,  KAY, Michael R. ,  ADEEB, Mohammad Ahsanul

    IPC: H03F1/02 ,  H03F3/24 ,  H03F3/189 ,  H04B1/04

    CPC classification number: G05F1/46 ,  H03F1/0211 ,  H03F1/0227 ,  H03F1/3223 ,  H03F3/189 ,  H03F3/24 ,  H03F2200/102 ,  H03F2200/432 ,  H04B2001/0441

    Abstract: An envelope tracking power supply (26) and an offset capacitive element (CO) are disclosed. The offset capacitive element (CO) is coupled between a switching output and an analog output of the envelope tracking power supply (26), which operates in one of an envelope tracking mode, a transition mode, and an average power tracking mode. During the envelope tracking mode, the envelope tracking power supply (26) provides an envelope power supply signal using both the switching output and the analog output. During the transition mode, the envelope tracking power supply (26) drives the offset capacitive element (CO) from a first voltage to a second voltage, such that during a transition from the envelope tracking mode to the transition mode, the offset capacitive element (CO) has the first voltage, and during a transition from the transition mode to the average power tracking mode, the offset capacitive element (CO) has the second voltage.

    Abstract translation: 公开了一种包络跟踪电源（26）和偏置电容元件（CO）。 偏移电容元件（CO）耦合在包络跟踪电源（26）的开关输出和模拟输出之间，其以包络跟踪模式，转换模式和平均功率跟踪模式之一工作。 在包络跟踪模式期间，包络跟踪电源（26）使用开关输出和模拟输出两者提供包络电源信号。 在转换模式期间，包络跟踪电源（26）将偏移电容元件（CO）从第一电压驱动到第二电压，使得在从包络跟踪模式转换到转换模式期间，偏移电容元件 CO）具有第一电压，并且在从转换模式到平均功率跟踪模式的转变期间，偏移电容元件（CO）具有第二电压。

    SPLIT VCC AND COMMON VCC POWER MANAGEMENT ARCHITECTURE FOR ENVELOPE TRACKING
    68.
    发明申请
    SPLIT VCC AND COMMON VCC POWER MANAGEMENT ARCHITECTURE FOR ENVELOPE TRACKING 审中-公开
    分离VCC和通用VCC电源管理架构进行包络跟踪

    公开(公告)号：WO2013033700A1

    公开(公告)日：2013-03-07

    申请号：PCT/US2012/053654

    申请日：2012-09-04

    Applicant: RF MICRO DEVICES, INC.

    Inventor： KHLAT, Nadim ,  KAY, Michael R. ,  GORISSE, Philippe

    IPC: H03F1/32 ,  H03F1/02 ,  H03F3/195 ,  H03F3/24 ,  H04B17/00 ,  H03G3/00 ,  H03G3/30

    CPC classification number: H03G1/00 ,  H03F1/0227

    Abstract: An envelope tracking power supply and transmitter control circuitry are disclosed. The transmitter control circuitry receives a first envelope power supply control signal and a second envelope power supply control signal. The envelope tracking power supply operates in one of a group of operating modes, which includes a first operating mode and a second operating mode. During both the first operating mode and the second operating mode, a first envelope power supply signal is provided to a driver stage based on the first envelope power supply control signal. During the first operating mode, a second envelope power supply signal is provided to a final stage based on the first envelope power supply control signal. However, during the second operating mode, the second envelope power supply signal is provided to the final stage based on the second envelope power supply control signal.

    Abstract translation: 公开了一种包络跟踪电源和发射机控制电路。 发射机控制电路接收第一包络电源控制信号和第二包络电源控制信号。 信封跟踪电源以包括第一操作模式和第二操作模式的一组操作模式中的一种操作。 在第一操作模式和第二操作模式期间，基于第一包络电源控制信号将第一包络电源信号提供给驱动器级。 在第一操作模式期间，第二包络电源信号基于第一包络电源控制信号提供到最后级。 然而，在第二操作模式期间，第二包络电源信号基于第二包络电源控制信号提供到最后级。

    MODIFIED SWITCHING RIPPLE FOR ENVELOPE TRACKING SYSTEM
    69.
    发明申请
    MODIFIED SWITCHING RIPPLE FOR ENVELOPE TRACKING SYSTEM 审中-公开
    改进的开关跟踪系统

    公开(公告)号：WO2013012787A2

    公开(公告)日：2013-01-24

    申请号：PCT/US2012/046887

    申请日：2012-07-16

    Applicant: RF MICRO DEVICES, INC.

    Inventor： KHLAT, Nadim ,  KAY, Michael, R.

    IPC: H03F1/32

    CPC classification number: H04B1/0475 ,  H03F1/0227 ,  H03F1/305

    Abstract: Radio frequency (RF) transmitter circuitry, which includes an RF power amplifier (PA) and an envelope tracking power supply, is disclosed. The RF PA receives and amplifies an RF input signal to provide an RF transmit signal using an envelope power supply signal. The envelope tracking power supply provides the envelope power supply signal, which has switching ripple. Further, the envelope tracking power supply operates in either a normal switching ripple mode or a modified switching ripple mode, such that during the normal switching ripple mode, the envelope power supply signal has normal switching ripple, and during the modified switching ripple mode, the envelope power supply signal has modified switching ripple. When the modified switching ripple is required, the envelope tracking power supply operates in the modified switching ripple mode.

    Abstract translation: 公开了包括RF功率放大器（PA）和包络跟踪电源的射频（RF）发射机电路。 RF PA接收并放大RF输入信号，以使用包络电源信号提供RF发射信号。 信封跟踪电源提供具有开关纹波的信封电源信号。 此外，包络跟踪电源以正常开关纹波模式或修改的开关纹波模式工作，使得在正常开关纹波模式期间，包络电源信号具有正常的开关纹波，并且在修改的开关纹波模式期间， 信号电源信号改变了开关纹波。 当需要修改的开关纹波时，包络跟踪电源以修改的开关纹波模式运行。

    GROUP DELAY CALIBRATION METHOD FOR POWER AMPLIFIER ENVELOPE TRACKING
    70.
    发明申请
    GROUP DELAY CALIBRATION METHOD FOR POWER AMPLIFIER ENVELOPE TRACKING 审中-公开

    公开(公告)号：WO2012109227A3

    公开(公告)日：2012-08-16

    申请号：PCT/US2012/024124

    申请日：2012-02-07

    Applicant: RF MICRO DEVICES, INC.

    Inventor： KHLAT, Nadim ,  HORLANDER, Karl, F.

    IPC: H03F1/02

    Abstract: An open loop envelope tracking system calibration technique and circuitry are proposed. A radio frequency power amplifier receives a modulated signal. An envelope tracker power converter generates a modulated power amplifier supply voltage for the radio frequency power amplifier based on a control signal derived from the modulated signal. A first output power and a second output power of the radio frequency power amplifier are measured when the control signal is respectively delayed by a first delay period and a second delay period. A sensitivity of the output power of the radio frequency power amplifier is near a maximum near the first delay period and the second delay period. The first delay period and/or the second delay period are adjusted until the first output power substantially equals the second output power. The first delay period and the second delay period are used to obtain a calibrated fine tuning delay offset.

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