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141 条记录 (耗时 0.022 秒)

    DC/DC converter, and power amplifier applying the same
    2.
    发明授权
    DC/DC converter, and power amplifier applying the same 失效
    DC / DC转换器和应用它的功率放大器

    公开(公告)号：US07973522B2

    公开(公告)日：2011-07-05

    申请号：US12005380

    申请日：2007-12-27

    申请人： Takeshi Takano ,  Yasuyuki Oishi ,  Tokuro Kubo ,  Toru Maniwa

    发明人： Takeshi Takano ,  Yasuyuki Oishi ,  Tokuro Kubo ,  Toru Maniwa

    IPC分类号： G05F1/40

    CPC分类号： H03F1/0227 ,  H02M3/3372 ,  H03F3/20 ,  H03F2200/228 ,  H03F2200/504

    摘要： A DC/DC converter capable of controlling an output signal using a broadband signal input is provided. By employing the above DC/DC converter as a power supply, a highly efficient power amplifier can be configured. The above DC/DC converter includes two class-C amplifiers, a rectifier circuit connected between each output of the two class-C amplifiers, and an oscillator of a predetermined frequency signal. The predetermined frequency signal output from the oscillator is input to each of the two class-C amplifiers, and by controlling the phase difference of the predetermined frequency signal input to the two class-C amplifiers, the magnitude of a direct current voltage output from the rectifier circuit is made variable.

    摘要翻译： 提供了能够使用宽带信号输入来控制输出信号的DC / DC转换器。 通过采用上述DC / DC转换器作为电源，可以配置高效的功率放大器。 上述DC / DC转换器包括两个C类放大器，连接在两个C类放大器的每个输出端之间的整流器电路和预定频率信号的振荡器。 从振荡器输出的预定频率信号被输入到两个C类放大器中的每一个，并且通过控制输入到两个C类放大器的预定频率信号的相位差，从 整流电路是可变的。

    DC/DC converter, and power amplifier applying the same
    3.
    发明申请
    DC/DC converter, and power amplifier applying the same 失效
    DC / DC转换器和应用它的功率放大器

    公开(公告)号：US20080144338A1

    公开(公告)日：2008-06-19

    申请号：US12005380

    申请日：2007-12-27

    申请人： Takeshi Takano ,  Yasuyuki Oishi ,  Tokuro Kubo ,  Toru Maniwa

    发明人： Takeshi Takano ,  Yasuyuki Oishi ,  Tokuro Kubo ,  Toru Maniwa

    IPC分类号： H02M3/335 ,  H03G9/00

    CPC分类号： H03F1/0227 ,  H02M3/3372 ,  H03F3/20 ,  H03F2200/228 ,  H03F2200/504

    摘要： A DC/DC converter capable of controlling an output signal using a broadband signal input is provided. By employing the above DC/DC converter as a power supply, a highly efficient power amplifier can be configured. The above DC/DC converter includes two class-C amplifiers, a rectifier circuit connected between each output of the two class-C amplifiers, and an oscillator of a predetermined frequency signal. The predetermined frequency signal output from the oscillator is input to each of the two class-C amplifiers, and by controlling the phase difference of the predetermined frequency signal input to the two class-C amplifiers, the magnitude of a direct current voltage output from the rectifier circuit is made variable.

    摘要翻译： 提供了能够使用宽带信号输入来控制输出信号的DC / DC转换器。 通过采用上述DC / DC转换器作为电源，可以配置高效的功率放大器。 上述DC / DC转换器包括两个C类放大器，连接在两个C类放大器的每个输出端之间的整流器电路和预定频率信号的振荡器。 从振荡器输出的预定频率信号被输入到两个C类放大器中的每一个，并且通过控制输入到两个C类放大器的预定频率信号的相位差，从 整流电路是可变的。

    Distortion compensating apparatus
    4.
    发明授权
    Distortion compensating apparatus 有权
    失真补偿装置

    公开(公告)号：US07639755B2

    公开(公告)日：2009-12-29

    申请号：US10951040

    申请日：2004-09-22

    申请人： Hiroyoshi Ishikawa ,  Tokuro Kubo ,  Kazuo Nagatani ,  Yasuyuki Oishi ,  Hajime Hamada ,  Nobukazu Fudaba ,  Toru Maniwa ,  Hiroyuki Hayashi

    发明人： Hiroyoshi Ishikawa ,  Tokuro Kubo ,  Kazuo Nagatani ,  Yasuyuki Oishi ,  Hajime Hamada ,  Nobukazu Fudaba ,  Toru Maniwa ,  Hiroyuki Hayashi

    IPC分类号： H04K1/02

    CPC分类号： H03F1/3247 ,  H03F2201/3231 ,  H03F2201/3233

    摘要： A distortion compensating apparatus calculates a distortion compensation coefficient in such a manner that a difference signal between a reference signal, which is a transmit signal, and a feedback signal will be diminished, updates an old distortion compensation coefficient by the calculated distortion compensation coefficient and applies distortion compensation to the transmit signal based upon this distortion compensation coefficient. In this apparatus, a phase correcting interval, which is for correcting the phase difference between the reference signal and the feedback signal, and a distortion compensation coefficient updating interval are generated alternately, a correction is applied so as to null the phase difference in the phase correcting interval, and the distortion compensation coefficient is updated in the distortion compensation coefficient updating interval.

    摘要翻译： 失真补偿装置以这样的方式来计算失真补偿系数，使得作为发送信号的参考信号与反馈信号之间的差信号将被减小，通过计算出的失真补偿系数来更新旧的失真补偿系数并应用 基于该失真补偿系数对发送信号进行失真补偿。 在该装置中，交替地产生用于校正参考信号和反馈信号之间的相位差的相位校正间隔和失真补偿系数更新间隔，进行校正，以使相位中的相位差无效 在失真补偿系数更新间隔中更新失真补偿系数。

    Adaptive control apparatus
    7.
    发明申请
    Adaptive control apparatus 有权
    自适应控制装置

    公开(公告)号：US20050058220A1

    公开(公告)日：2005-03-17

    申请号：US10976290

    申请日：2004-10-26

    申请人： Kazuo Nagatani ,  Tokuro Kubo ,  Hiroyoshi Ishikawa ,  Yasuyuki Oishi ,  Toru Maniwa ,  Hiroyuki Hayashi ,  Hajime Hamada ,  Nobukazu Fudaba

    发明人： Kazuo Nagatani ,  Tokuro Kubo ,  Hiroyoshi Ishikawa ,  Yasuyuki Oishi ,  Toru Maniwa ,  Hiroyuki Hayashi ,  Hajime Hamada ,  Nobukazu Fudaba

    IPC分类号： H03F1/32 ,  H03F1/34 ,  H04B1/04 ,  H04L27/36 ,  H04L25/03

    CPC分类号： H03F1/32 ,  H03F1/02 ,  H03F1/3247 ,  H03F1/345 ,  H03F3/24 ,  H04B2001/045

    摘要： Disclosed is an adaptive control apparatus having an error calculation unit for calculating the difference between a reference signal and a feedback signal, and an adaptive controller for applying adaptive control so as to diminish the difference and causing the result of adaptive control to be reflected in the reference signal. The adaptive control apparatus has a delay unit for delaying at least one of the reference signal and feedback signal by a set delay time in such a manner that the reference signal and feedback signal will be input simultaneously to the arithmetic unit; a frequency-component detecting unit for detecting a frequency component of the reference signal; a delay-time acquisition unit for acquiring delay time conforming to the frequency component; and a delay-time setting unit for setting the acquired delay time in the delay unit.

    摘要翻译： 公开了一种自适应控制装置，其具有用于计算参考信号和反馈信号之间的差的误差计算单元和用于施加自适应控制的自适应控制器，以便减小差异并使自适应控制的结果反映在 参考信号。 自适应控制装置具有延迟单元，用于将参考信号和反馈信号中的至少一个延迟设定的延迟时间，使得参考信号和反馈信号将同时输入到运算单元; 频率分量检测单元，用于检测参考信号的频率分量; 延迟时间获取单元，用于获取符合频率分量的延迟时间; 以及延迟时间设定单元，用于在所述延迟单元中设置所获取的延迟时间。

    Distortion compensation apparatus
    8.
    发明授权
    Distortion compensation apparatus 失效
    失真补偿装置

    公开(公告)号：US06737918B2

    公开(公告)日：2004-05-18

    申请号：US10629134

    申请日：2003-07-29

    申请人： Yasuyuki Oishi ,  Tokuro Kubo ,  Kazuo Nagatani ,  Toru Maniwa

    发明人： Yasuyuki Oishi ,  Tokuro Kubo ,  Kazuo Nagatani ,  Toru Maniwa

    IPC分类号： H03F126

    CPC分类号： H03F1/3247 ,  H03F1/3282 ,  H03F1/3294 ,  H03F1/34 ,  H03F3/24 ,  H04B2001/0433 ,  H04L27/368

    摘要： An input complex base band signal x(t) is complex-multiplied by a distortion compensation coefficient h(p), quadrature-modulated by a quadrature modulator QMOD, and input into a power amplifier AMP. A part of the output from the power amplifier AMP is input into a band pass filter BPF, the band pass filter BPF extracts an adjacent channel leakage power band, and a power detector detects an adjacent channel leakage power value. A distortion compensation coefficient arithmetic unit GA using a genetic algorithm computes a distortion compensation coefficient based on an adjacent channel leakage power value on an adjacent channel leakage power ratio and an input complex base band signal x(t), and outputs a distortion compensation coefficient h(p) as a function of a power value p of the input complex base band signal.

    摘要翻译： 输入复基带信号x（t）被正交调制器QMOD正交调制的失真补偿系数h（p）复乘，并输入到功率放大器AMP。 来自功率放大器AMP的输出的一部分被输入到带通滤波器BPF中，带通滤波器BPF提取相邻信道泄漏功率带，并且功率检测器检测相邻信道泄漏功率值。 使用遗传算法的失真补偿系数算术单元GA根据相邻信道泄漏功率比的相邻信道泄漏功率值和输入复基带信号x（t）计算失真补偿系数，并输出失真补偿系数h （p）作为输入复基带信号的功率值p的函数。