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    Amplifier failure detection apparatus
    4.
    发明授权
    Amplifier failure detection apparatus 有权
    放大器故障检测装置

    公开(公告)号：US08022763B2

    公开(公告)日：2011-09-20

    申请号：US11790384

    申请日：2007-04-25

    申请人： Hiroaki Maeda ,  Takashi Ono ,  Yousuke Okazaki ,  Hirotake Honda ,  Hiroyuki Ezuka

    发明人： Hiroaki Maeda ,  Takashi Ono ,  Yousuke Okazaki ,  Hirotake Honda ,  Hiroyuki Ezuka

    IPC分类号： H03F21/00

    CPC分类号： H03F1/3247 ,  H03F2201/3233 ,  H04B1/0466 ,  H04B2001/0416

    摘要： An amplifier failure detection apparatus for a radio transmitter that has a function for compensating for amplifier distortion of the radio transmitter and a function for determining amplifier failure has occurred by detecting that the gain of an amplifier has dropped a set level or more, in which: a gain-detection unit detects the gain of the amplifier; an alarm-detection-level-generation unit, which has a table for storing alarm-detection levels that correspond to input-amplitude levels, generates an alarm-detection level that corresponds to an input-amplitude level; and a comparison unit compares the gain detected by the gain-detection unit with the alarm-detection level, and generates an alarm based on the comparison results.

    摘要翻译： 通过检测放大器的增益已经下降了设定值以上，已经发生了具有补偿无线电发射机的放大器失真的功能的放大器故障检测装置和用于确定放大器故障的功能，其中： 增益检测单元检测放大器的增益; 具有用于存储对应于输入幅度电平的报警检测电平的表的报警检测电平生成单元生成与输入幅度电平对应的报警检测电平; 并且比较单元将由增益检测单元检测到的增益与报警检测水平进行比较，并且基于比较结果生成报警。

    Amplifier unit and method of detecting failure in the same
    5.
    发明申请
    Amplifier unit and method of detecting failure in the same 有权
    放大器单元及其检测方法相同

    公开(公告)号：US20070285158A1

    公开(公告)日：2007-12-13

    申请号：US11790982

    申请日：2007-04-30

    申请人： Akira Seino ,  Hiroaki Maeda ,  Takashi Ono ,  Yousuke Okazaki

    发明人： Akira Seino ,  Hiroaki Maeda ,  Takashi Ono ,  Yousuke Okazaki

    IPC分类号： H03F3/68 ,  G01R17/02

    CPC分类号： H03F1/0288 ,  H03F1/52 ,  H03F2200/207 ,  H03F2200/465 ,  H03F2200/471

    摘要： The present invention provides an amplifier unit including a carrier amplifier biased for Class A or Class AB operation; a peak amplifier biased for Class B or Class C operation, wherein an input signal is input to the carrier amplifier and the peak amplifier, and wherein output signals from the carrier amplifier and the peak amplifier are synthesized to output therefrom; a comparator configured to compare a gate bias voltage of a transistor device in the peak amplifier with a predetermined threshold voltage and output a first output signal; and a failure detection circuit configured to output a second output signal indicating presence or absence of failure, based on the first output signal received from the comparator.

    摘要翻译： 本发明提供一种放大器单元，其包括偏置用于A类或AB类操作的载波放大器; 偏置用于B类或C类工作的峰值放大器，其中输入信号被输入到载波放大器和峰值放大器，并且其中来自载波放大器和峰值放大器的输出信号被合成以从其输出; 比较器，用于将所述峰值放大器中的晶体管器件的栅极偏置电压与预定阈值电压进行比较，并输出第一输出信号; 以及故障检测电路，被配置为基于从所述比较器接收的所述第一输出信号，输出指示故障有无的第二输出信号。

    Amplifier failure detection apparatus
    6.
    发明申请
    Amplifier failure detection apparatus 有权
    放大器故障检测装置

    公开(公告)号：US20080068191A1

    公开(公告)日：2008-03-20

    申请号：US11790384

    申请日：2007-04-25

    申请人： Hiroaki Maeda ,  Takashi Ono ,  Yousuke Okazaki ,  Hirotake Honda ,  Hiroyuki Ezuka

    发明人： Hiroaki Maeda ,  Takashi Ono ,  Yousuke Okazaki ,  Hirotake Honda ,  Hiroyuki Ezuka

    IPC分类号： G08B21/00

    CPC分类号： H03F1/3247 ,  H03F2201/3233 ,  H04B1/0466 ,  H04B2001/0416

    摘要： An amplifier failure detection apparatus for a radio transmitter that has a function for compensating for amplifier distortion of the radio transmitter and a function for determining amplifier failure has occurred by detecting that the gain of an amplifier has dropped a set level or more, in which: a gain-detection unit detects the gain of the amplifier; an alarm-detection-level-generation unit, which has a table for storing alarm-detection levels that correspond to input-amplitude levels, generates an alarm-detection level that corresponds to an input-amplitude level; and a comparison unit compares the gain detected by the gain-detection unit with the alarm-detection level, and generates an alarm based on the comparison results.

    摘要翻译： 通过检测放大器的增益已经下降了设定值以上，已经发生了具有补偿无线电发射机的放大器失真的功能的放大器故障检测装置和用于确定放大器故障的功能，其中： 增益检测单元检测放大器的增益; 具有用于存储对应于输入幅度电平的报警检测电平的表的报警检测电平生成单元生成与输入幅度电平对应的报警检测电平; 并且比较单元将由增益检测单元检测到的增益与报警检测水平进行比较，并且基于比较结果生成报警。

    Amplifier unit and method of detecting failure in the same
    7.
    发明授权
    Amplifier unit and method of detecting failure in the same 有权
    放大器单元及其检测方法相同

    公开(公告)号：US07456687B2

    公开(公告)日：2008-11-25

    申请号：US11790982

    申请日：2007-04-30

    申请人： Akira Seino ,  Hiroaki Maeda ,  Takashi Ono ,  Yousuke Okazaki

    发明人： Akira Seino ,  Hiroaki Maeda ,  Takashi Ono ,  Yousuke Okazaki

    IPC分类号： H03F3/68

    CPC分类号： H03F1/0288 ,  H03F1/52 ,  H03F2200/207 ,  H03F2200/465 ,  H03F2200/471

    摘要： The present invention provides an amplifier unit including a carrier amplifier biased for Class A or Class AB operation; a peak amplifier biased for Class B or Class C operation, wherein an input signal is input to the carrier amplifier and the peak amplifier, and wherein output signals from the carrier amplifier and the peak amplifier are synthesized to output therefrom; a comparator configured to compare a gate bias voltage of a transistor device in the peak amplifier with a predetermined threshold voltage and output a first output signal; and a failure detection circuit configured to output a second output signal indicating presence or absence of failure, based on the first output signal received from the comparator.

    摘要翻译： 本发明提供一种放大器单元，其包括偏置用于A类或AB类操作的载波放大器; 偏置用于B类或C类工作的峰值放大器，其中输入信号被输入到载波放大器和峰值放大器，并且其中来自载波放大器和峰值放大器的输出信号被合成以从其输出; 比较器，用于将所述峰值放大器中的晶体管器件的栅极偏置电压与预定阈值电压进行比较，并输出第一输出信号; 以及故障检测电路，被配置为基于从所述比较器接收到的所述第一输出信号，输出指示故障有无的第二输出信号。

    AMPLIFYING APPARATUS, TRANSMITTER, AND AMPLIFYING APPARATUS CONTROL METHOD
    8.
    发明申请
    AMPLIFYING APPARATUS, TRANSMITTER, AND AMPLIFYING APPARATUS CONTROL METHOD 有权
    放大装置，发射器和放大装置控制方法

    公开(公告)号：US20120299648A1

    公开(公告)日：2012-11-29

    申请号：US13426187

    申请日：2012-03-21

    申请人： Hirotake Honda ,  Hiroaki Maeda ,  Yousuke Okazaki ,  Yoshinobu Shizawa

    发明人： Hirotake Honda ,  Hiroaki Maeda ,  Yousuke Okazaki ,  Yoshinobu Shizawa

    IPC分类号： H03G3/00

    CPC分类号： H03F1/0272 ,  H03F1/30 ,  H03F3/245 ,  H03F2200/18 ,  H03F2200/462 ,  H03G3/3042

    摘要： A power amplifying apparatus has a GaN device for RF amplification, a GaN device for monitoring, an Idq detecting circuit, and a gate bias control (GBC) circuit. The GaN device for RF amplification amplifies an input signal to output the resultant. The GaN device for monitoring is an amplification device for monitoring an input/output signal of the GaN device for RF amplification. The Idq detecting circuit detects an output signal output by the GaN device for monitoring, corresponding to an input signal, which is diverged from the input signal to be input to the GaN device for RF amplification, and is input to the GaN device for monitoring. The gate bias control circuit controls a gate voltage to be applied to the GaN device for RF amplification in accordance with the output signal detected by the Idq detecting circuit.

    摘要翻译： 功率放大装置具有用于RF放大的GaN器件，用于监视的GaN器件，Idq检测电路和栅极偏置控制（GBC）电路。 用于RF放大的GaN器件放大输入信号以输出结果。 用于监视的GaN器件是用于监视用于RF放大的GaN器件的输入/输出信号的放大器件。 Idq检测电路检测由GaN器件输出的输出信号，对应于从要输入到GaN器件的输入信号发散的输入信号进行监控，并输入到GaN器件进行监控。 栅极偏置控制电路根据由Idq检测电路检测的输出信号控制施加到GaN器件的RF放大的栅极电压。

    Amplifying apparatus, transmitter, and amplifying apparatus control method
    9.
    发明授权
    Amplifying apparatus, transmitter, and amplifying apparatus control method 有权
    放大装置，发射机和放大装置的控制方法

    公开(公告)号：US08680921B2

    公开(公告)日：2014-03-25

    申请号：US13426187

    申请日：2012-03-21

    申请人： Hirotake Honda ,  Hiroaki Maeda ,  Yousuke Okazaki ,  Yoshinobu Shizawa

    发明人： Hirotake Honda ,  Hiroaki Maeda ,  Yousuke Okazaki ,  Yoshinobu Shizawa

    IPC分类号： H03G3/20

    CPC分类号： H03F1/0272 ,  H03F1/30 ,  H03F3/245 ,  H03F2200/18 ,  H03F2200/462 ,  H03G3/3042

    摘要： A power amplifying apparatus has a GaN device for RF amplification, a GaN device for monitoring, an Idq detecting circuit, and a gate bias control (GBC) circuit. The GaN device for RF amplification amplifies an input signal to output the resultant. The GaN device for monitoring is an amplification device for monitoring an input/output signal of the GaN device for RF amplification. The Idq detecting circuit detects an output signal output by the GaN device for monitoring, corresponding to an input signal, which is diverged from the input signal to be input to the GaN device for RF amplification, and is input to the GaN device for monitoring. The gate bias control circuit controls a gate voltage to be applied to the GaN device for RF amplification in accordance with the output signal detected by the Idq detecting circuit.

    摘要翻译： 功率放大装置具有用于RF放大的GaN器件，用于监视的GaN器件，Idq检测电路和栅极偏置控制（GBC）电路。 用于RF放大的GaN器件放大输入信号以输出结果。 用于监视的GaN器件是用于监视用于RF放大的GaN器件的输入/输出信号的放大器件。 Idq检测电路检测由GaN器件输出的输出信号，对应于从要输入到GaN器件的输入信号发散的输入信号进行监控，并输入到GaN器件进行监控。 栅极偏置控制电路根据由Idq检测电路检测的输出信号控制施加到GaN器件的RF放大的栅极电压。

    AMPLIFYING DEVICE AND TRANSMITTER APPARATUS
    10.
    发明申请
    AMPLIFYING DEVICE AND TRANSMITTER APPARATUS 有权
    放大器和发射器装置

    公开(公告)号：US20100240329A1

    公开(公告)日：2010-09-23

    申请号：US12721064

    申请日：2010-03-10

    申请人： Yoshinobu Shizawa ,  Hiroaki Maeda ,  Yousuke Okazaki ,  Hirotake Honda

    发明人： Yoshinobu Shizawa ,  Hiroaki Maeda ,  Yousuke Okazaki ,  Hirotake Honda

    IPC分类号： H04B1/04 ,  H03F3/68

    CPC分类号： H03F1/0288 ,  H03F1/0222 ,  H03F1/3247 ,  H03F2201/3233

    摘要： An amplifying device includes an amplifier including a first amplifying element with a drain voltage thereof being controlled, and a second amplifying element, the amplifier amplifying a transmission signal with the first and second amplifying elements, synthesizing the transmission signals amplified by the first and second amplifying elements, and outputting the synthesized transmission signal; a distortion compensator part which performs distortion compensation on the input signal in accordance with a compensation coefficient derived from a difference between a input signal and a feedback signal generated from a portion of a signal output from the amplifier; and a controller part which controls the drain voltage of the first amplifying element in response to a result of a comparison between a power level of the input signal prior to the distortion compensation operation by the distortion compensator part and a threshold value.

    摘要翻译： 一种放大装置，包括：放大器，包括其漏极电压被控制的第一放大元件;以及第二放大元件，放大器利用第一和第二放大元件放大发送信号，合成由第一和第二放大器放大的发送信号 并输出合成的发送信号; 失真补偿部，其根据从输入信号和从放大器输出的信号的一部分产生的反馈信号之间的差导出的补偿系数，对输入信号进行失真补偿; 以及控制器部分，其响应于在失真补偿器部分的失真补偿操作之前的输入信号的功率电平与阈值之间的比较的结果来控制第一放大元件的漏极电压。