公开(公告)号：US08030995B2

公开(公告)日：2011-10-04

申请号：US12644833

申请日：2009-12-22

申请人： Yoichi Okubo ,  Manabu Nakamura ,  Junya Dosaka ,  Yasuhiro Takeda ,  Taizo Ito ,  Naoki Hongo ,  Taizo Yamawaki ,  Takashi Kawamoto ,  Akira Maeki

发明人： Yoichi Okubo ,  Manabu Nakamura ,  Junya Dosaka ,  Yasuhiro Takeda ,  Taizo Ito ,  Naoki Hongo ,  Taizo Yamawaki ,  Takashi Kawamoto ,  Akira Maeki

IPC分类号： H03G3/00

CPC分类号： H03F1/0227 ,  H03F3/19 ,  H03F2200/451 ,  H03F2200/462

摘要： A power circuit used for an amplifier, which includes an amplifier provided with a linear amplifier serving as a voltage source, a DC/DC converter serving as a current source, a hysteresis comparator controlling the DC/DC converter, and a current detector detecting output current from the linear amplifier to output the detected output current to the hysteresis comparator; and a switching restricting device for restricting a switching interval in the DC/DC converter such that the switching interval is not equal to or less than a constant time or is not shorter than the constant time.

摘要翻译： 用于放大器的电源电路，其包括放大器，该放大器设置有用作电压源的线性放大器，用作电流源的DC / DC转换器，控制DC / DC转换器的滞环比较器以及电流检测器检测输出 电流从线性放大器输出检测输出电流到滞后比较器; 以及用于限制DC / DC转换器中的切换间隔使得切换间隔不等于或小于恒定时间或不短于恒定时间的切换限制装置。

公开(公告)号：US20100171553A1

公开(公告)日：2010-07-08

申请号：US12644833

申请日：2009-12-22

申请人： Yoichi Okubo ,  Manabu Nakamura ,  Junya Dosaka ,  Yasuhiro Takeda ,  Taizo Ito ,  Naoki Hongo ,  Taizo Yamawaki ,  Takashi Kawamoto ,  Akira Maeki

发明人： Yoichi Okubo ,  Manabu Nakamura ,  Junya Dosaka ,  Yasuhiro Takeda ,  Taizo Ito ,  Naoki Hongo ,  Taizo Yamawaki ,  Takashi Kawamoto ,  Akira Maeki

IPC分类号： H03G1/00

CPC分类号： H03F1/0227 ,  H03F3/19 ,  H03F2200/451 ,  H03F2200/462

摘要： A power circuit used for an amplifier, which includes an amplifier provided with a linear amplifier serving as a voltage source, a DC/DC converter serving as a current source, a hysteresis comparator controlling the DC/DC converter, and a current detector detecting output current from the linear amplifier to output the detected output current to the hysteresis comparator; and a switching restricting means for restricting a switching interval in the DC/DC converter such that the switching interval is not equal to or less than a constant time or is not shorter than the constant time.

摘要翻译： 用于放大器的电源电路，其包括放大器，该放大器设置有用作电压源的线性放大器，用作电流源的DC / DC转换器，控制DC / DC转换器的滞环比较器以及电流检测器检测输出 电流从线性放大器输出检测输出电流到滞后比较器; 以及切换限制装置，用于限制DC / DC转换器中的切换间隔，使得切换间隔不等于或小于恒定时间或不短于恒定时间。

公开(公告)号：US08035444B2

公开(公告)日：2011-10-11

申请号：US12615687

申请日：2009-11-10

申请人： Yoichi Okubo ,  Manabu Nakamura ,  Yasuhiro Takeda ,  Taizo Ito ,  Junya Dosaka ,  Terufumi Nagano ,  Hidekatsu Ueno ,  Toshio Nojima

发明人： Yoichi Okubo ,  Manabu Nakamura ,  Yasuhiro Takeda ,  Taizo Ito ,  Junya Dosaka ,  Terufumi Nagano ,  Hidekatsu Ueno ,  Toshio Nojima

IPC分类号： H03F3/68

CPC分类号： H03F1/0288

摘要： An amplifier capable of lowering an electrical current flowing in a peak amplifier before a carrier amplifier becomes saturated to thereby improve the efficiency of an entirety of the amplifier is provided. The amplifier includes a carrier amplifier circuit having an amplifying element operable in class-AB or class-B, and a plurality of peak amplifier circuits which have amplifying elements operating in class-B or class-C and which are arranged to start an operation in stages in response to an input level. An output of the carrier amplifier circuit and outputs of the peak amplifier circuits are combined together for signal output. One of the peak amplifier circuits which is rendered operative at the lowest input level is smaller in saturation output than the carrier amplifier circuit.

摘要翻译： 提供一种放大器，其能够在载波放大器饱和之前降低在峰值放大器中流动的电流，从而提高整个放大器的效率。 放大器包括具有可在AB类或B类中工作的放大元件的载波放大器电路和具有在B类或C类中工作的放大元件的多个峰值放大器电路， 响应输入级别的阶段。 载波放大器电路的输出和峰值放大器电路的输出被组合在一起用于信号输出。 在最低输入电平下工作的峰值放大器电路中的一个在饱和输出中比载波放大器电路小。

公开(公告)号：US07427895B1

公开(公告)日：2008-09-23

申请号：US11581418

申请日：2006-10-17

申请人： Yoichi Okubo ,  Yasuhiro Takeda ,  Manabu Nakamura ,  Naoki Hongo ,  Masaru Adachi

发明人： Yoichi Okubo ,  Yasuhiro Takeda ,  Manabu Nakamura ,  Naoki Hongo ,  Masaru Adachi

IPC分类号： H03F3/68

CPC分类号： H03F1/0288 ,  H03F3/602

摘要： A first control unit controls a bias applied to the peak amplifier to (a) make a peak amplifier operate as class C when the level of the input signal is lower than a first threshold value, to (b) make the peak amplifier operate as class AB with a second conduction angle substantially equal to a first conduction angle, when the level of the input signal is higher than a second threshold value higher than the first threshold value, and to (c) make the peak amplifier operate as class AB with a third conduction angle smaller than the first conduction angle, when the level of the input signal is not less than the first threshold value and not more than the second threshold value.

摘要翻译： 第一控制单元控制施加到峰值放大器的偏置，以便（a）当输入信号的电平低于第一阈值时使峰值放大器工作为C类，以使（b）使峰值放大器工作为类 AB，当输入信号的电平高于高于第一阈值的第二阈值时，具有基本上等于第一导通角的第二导通角，以及（c）使峰值放大器作为AB类工作，其中a 当输入信号的电平不小于第一阈值且不大于第二阈值时，第三导通角小于第一导通角。

公开(公告)号：US20080187035A1

公开(公告)日：2008-08-07

申请号：US12078507

申请日：2008-04-01

申请人： Manabu Nakamura ,  Yasuhiro Takeda ,  Yoichi Okubo ,  Masaru Adachi ,  Naoki Hongo

发明人： Manabu Nakamura ,  Yasuhiro Takeda ,  Yoichi Okubo ,  Masaru Adachi ,  Naoki Hongo

IPC分类号： H04L27/01 ,  H03F1/32

CPC分类号： H03F1/32 ,  H03F1/0288 ,  H03F1/3247 ,  H03F3/245 ,  H03F2200/207

摘要： A conventional power amplifying device has a problem that when a signal band is widened, sampling frequency for distortion detection is increased and an FFT calculation amount of a distortion compensation unit is increased, which increase a circuit size and power consumption. The present invention provides a non-linear distortion detection method and a distortion compensation amplifying device capable of suppressing increase of the circuit size and the power consumption even if the signal band is widened. A signal obtained by feeding back an output of a power amplifier is sampled by an A/D converter. An equalizer of a distortion detection unit uses an input signal d(n) of a predistorter as a reference symbol to detect an equalization error e(n) of the orthogonal demodulation signal u(n). An absolute value averaging unit outputs an absolute value of the equalization error e(n) which has been temporally averaged to E(n) as a distortion value to a control unit. According to the distortion value, the control unit adaptively controls the predistorter to perform distortion compensation.

摘要翻译： 传统的功率放大装置存在如下问题：当信号频带变宽时，失真检测的采样频率增加，并且失真补偿单元的FFT计算量增加，这增加了电路尺寸和功耗。 本发明提供即使信号频带变宽也能够抑制电路尺寸和功耗的增加的非线性失真检测方法和失真补偿放大装置。 通过反馈功率放大器的输出而获得的信号由A / D转换器采样。 失真检测单元的均衡器使用预失真器的输入信号d（n）作为参考符号来检测正交解调信号u（n）的均衡误差e（n）。 绝对值平均单元将对时间平均的均衡误差e（n）的绝对值作为失真值输出到控制单元。 根据失真值，控制单元自适应地控制预失真器进行失真补偿。

公开(公告)号：US08014443B2

公开(公告)日：2011-09-06

申请号：US12078507

申请日：2008-04-01

申请人： Manabu Nakamura ,  Yasuhiro Takeda ,  Yoichi Okubo ,  Masaru Adachi ,  Naoki Hongo

发明人： Manabu Nakamura ,  Yasuhiro Takeda ,  Yoichi Okubo ,  Masaru Adachi ,  Naoki Hongo

IPC分类号： H03H7/30 ,  H03F1/26

CPC分类号： H03F1/32 ,  H03F1/0288 ,  H03F1/3247 ,  H03F3/245 ,  H03F2200/207

摘要： The present invention provides a non-linear distortion detection method and a distortion compensation amplifying device capable of suppressing increase of the circuit size and the power consumption even if the signal band is widened. A signal obtained by feeding back an output of a power amplifier is sampled by an A/D converter. An equalizer of a distortion detection unit uses an input signal d(n) of a predistorter as a reference symbol to detect an equalization error e(n) of the orthogonal demodulation signal u(n). An absolute value averaging unit outputs an absolute value of the equalization error e(n) which has been temporally averaged to E(n) as a distortion value to a control unit. According to the distortion value, the control unit adaptively controls the predistorter to perform distortion compensation.

摘要翻译： 本发明提供即使信号频带变宽也能够抑制电路尺寸和功耗的增加的非线性失真检测方法和失真补偿放大装置。 通过反馈功率放大器的输出而获得的信号由A / D转换器采样。 失真检测单元的均衡器使用预失真器的输入信号d（n）作为参考符号来检测正交解调信号u（n）的均衡误差e（n）。 绝对值平均单元将对时间平均的均衡误差e（n）的绝对值作为失真值输出到控制单元。 根据失真值，控制单元自适应地控制预失真器进行失真补偿。

公开(公告)号：US20090051438A1

公开(公告)日：2009-02-26

申请号：US11920629

申请日：2006-05-17

申请人： Yoichi Okubo ,  Toshio Nojima ,  Yasuhiro Takeda ,  Manabu Nakamura ,  Masaru Adachi

发明人： Yoichi Okubo ,  Toshio Nojima ,  Yasuhiro Takeda ,  Manabu Nakamura ,  Masaru Adachi

IPC分类号： H03F1/07 ,  H03F1/56

CPC分类号： H03F1/0288 ,  H03F1/56 ,  H03F3/602 ,  H03F2200/423

摘要： The performance of an amplifying system is improved by achieving adequate matching. The amplifying system for amplifying signals includes distributing means 1 that distribute a signal, a carrier amplifier 2 that amplifies the distributed first signal in Class AB, a peak amplifier 4 that amplifies the distributed second signal in Class B or Class C, a first transmission line having a given electric length and being connected to an output of the carrier amplifier, a second transmission line having a given electric length and being connected to an output of the peak amplifier, and a combining end 18 for combining an output of the first transmission line and an output of the second transmission line. An impedance of the combining end is differentiated from a parallel impedance of load impedances of the carrier amplifier and the peak amplifier at the maximum power converted respectively by the first transmission line and the second transmission line, or is set as a parallel impedance in which the load impedances of the carrier amplifier and the peak amplifier at the maximum power are changed.

摘要翻译： 通过实现充分匹配，可以提高放大系统的性能。 用于放大信号的放大系统包括分配信号的分配装置1，放大AB类中分布的第一信号的载波放大器2，放大B类或C类中分布的第二信号的峰值放大器4，第一传输线 具有给定的电长度并连接到载波放大器的输出，具有给定电长度并连接到峰值放大器的输出的第二传输线，以及组合端18，用于组合第一传输线的输出 和第二传输线的输出。 组合端的阻抗与通过第一传输线和第二传输线分别转换的最大功率的载波放大器和峰值放大器的负载阻抗的并联阻抗不同，或者被设置为并联阻抗，其中 载波放大器和最大功率峰值放大器的负载阻抗发生变化。

公开(公告)号：US07714648B2

公开(公告)日：2010-05-11

申请号：US11920629

申请日：2006-05-17

申请人： Yoichi Okubo ,  Toshio Nojima ,  Yasuhiro Takeda ,  Manabu Nakamura ,  Masaru Adachi

发明人： Yoichi Okubo ,  Toshio Nojima ,  Yasuhiro Takeda ,  Manabu Nakamura ,  Masaru Adachi

IPC分类号： H03F3/68

CPC分类号： H03F1/0288 ,  H03F1/56 ,  H03F3/602 ,  H03F2200/423

摘要： The performance of an amplifying system is improved by achieving adequate matching. The amplifying system for amplifying signals includes distributing means 1 that distribute a signal, a carrier amplifier 2 that amplifies the distributed first signal in Class AB, a peak amplifier 4 that amplifies the distributed second signal in Class B or Class C, a first transmission line having a given electric length and being connected to an output of the carrier amplifier, a second transmission line having a given electric length and being connected to an output of the peak amplifier, and a combining end 18 for combining an output of the first transmission line and an output of the second transmission line. An impedance of the combining end is differentiated from a parallel impedance of load impedances of the carrier amplifier and the peak amplifier at the maximum power converted respectively by the first transmission line and the second transmission line, or is set as a parallel impedance in which the load impedances of the carrier amplifier and the peak amplifier at the maximum power are changed.

摘要翻译： 通过实现充分匹配，可以提高放大系统的性能。 用于放大信号的放大系统包括分配信号的分配装置1，放大AB类中分布的第一信号的载波放大器2，放大B类或C类中分布的第二信号的峰值放大器4，第一传输线 具有给定的电长度并连接到载波放大器的输出，具有给定电长度并连接到峰值放大器的输出的第二传输线，以及组合端18，用于组合第一传输线的输出 和第二传输线的输出。 组合端的阻抗与通过第一传输线和第二传输线分别转换的最大功率的载波放大器和峰值放大器的负载阻抗的并联阻抗不同，或者被设置为并联阻抗，其中 载波放大器和最大功率峰值放大器的负载阻抗发生变化。

公开(公告)号：US20090206927A1

公开(公告)日：2009-08-20

申请号：US12385865

申请日：2009-04-22

申请人： Yoichi Okubo ,  Masaki Suto ,  Yasuhiro Takeda ,  Masaru Adachi

发明人： Yoichi Okubo ,  Masaki Suto ,  Yasuhiro Takeda ,  Masaru Adachi

IPC分类号： H03F3/68

CPC分类号： H03F1/0288

摘要： There is provided an amplifier for combining outputs of a plurality of amplifying circuits to generate an amplifier output. The amplifier includes a first amplifying circuit for operating a first amplifying device in class-AB, wherein the first amplifying circuit is one among the plurality of the amplifying circuits; a second amplifying circuit for operating a second amplifying device in class-B or class-C, wherein the second amplifying circuit is one among the plurality of the amplifying circuits; and a summing node at which an output of the first amplifying circuit is combined with an output of the second amplifying circuit via a first impedance transformer containing a transmission line of an electrical length other than λ/4. The second amplifying device is connected to the summing node via an output matching circuit and a second impedance transformer containing a transmission line.

摘要翻译： 提供了用于组合多个放大电路的输出以产生放大器输出的放大器。 放大器包括用于操作AB类中的第一放大装置的第一放大电路，其中第一放大电路是多个放大电路之一; 用于在B类或C类中操作第二放大装置的第二放大电路，其中第二放大电路是多个放大电路之一; 以及求和节点，第一放大电路的输出通过包含除λ/ 4以外的电长度的传输线的第一阻抗变换器与第二放大电路的输出相结合。 第二放大装置经由输出匹配电路和包含传输线的第二阻抗变换器连接到求和节点。

公开(公告)号：US07847630B2

公开(公告)日：2010-12-07

申请号：US11255874

申请日：2005-10-24

申请人： Yoichi Okubo ,  Masaki Suto ,  Yasuhiro Takeda ,  Masaru Adachi

发明人： Yoichi Okubo ,  Masaki Suto ,  Yasuhiro Takeda ,  Masaru Adachi

IPC分类号： H03F3/28

CPC分类号： H03F1/0288

摘要： There is provided an amplifier for combining outputs of a plurality of amplifying circuits to generate an amplifier output. The amplifier includes a first amplifying circuit for operating a first amplifying device in class-AB, wherein the first amplifying circuit is one among the plurality of the amplifying circuits; a second amplifying circuit for operating a second amplifying device in class-B or class-C, wherein the second amplifying circuit is one among the plurality of the amplifying circuits; and a summing node at which an output of the first amplifying circuit is combined with an output of the second amplifying circuit via a first impedance transformer containing a transmission line of an electrical length other than λ/4. The second amplifying device is connected to the summing node via an output matching circuit and a second impedance transformer containing a transmission line.

摘要翻译： 提供了用于组合多个放大电路的输出以产生放大器输出的放大器。 放大器包括用于操作AB类中的第一放大装置的第一放大电路，其中第一放大电路是多个放大电路之一; 用于在B类或C类中操作第二放大装置的第二放大电路，其中第二放大电路是多个放大电路之一; 以及求和节点，第一放大电路的输出通过包含除λ/ 4以外的电长度的传输线的第一阻抗变换器与第二放大电路的输出相结合。 第二放大装置经由输出匹配电路和包含传输线的第二阻抗变换器连接到求和节点。