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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。
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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。
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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。
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公开(公告)号：US07719353B2
公开(公告)日：2010-05-18
申请号：US12379137
申请日：2009-02-13
申请人： Manabu Nakamura , Taizo Ito , Yoichi Okubo , Naoki Hongo
发明人： Manabu Nakamura , Taizo Ito , Yoichi Okubo , Naoki Hongo
IPC分类号： H03F3/68
CPC分类号： H03F1/0294 , H03F1/56 , H03F3/602 , H03F2200/222 , H03F2200/387 , H03F2200/423
摘要： An amplifying apparatus includes a splitting unit for splitting an input signal into a first split signal and a second split signal; phase-shifting unit for phase-shifting the first split signal and the second split signal, respectively; a first amplifying unit for amplifying a first phase-shifted signal and outputting the signal as a first output signal; a second amplifying unit for amplifying, in a substantially identical manner to the first amplifying unit, a second phase-shifted signal and outputting the signal as a second output signal; and a matching unit for matching the first output signal and the second output signal to a first transmission unit and a second transmission unit, respectively. The first transmission unit is for transmitting the first output signal from the matching unit to a load resistor, and the second transmission unit is for transmitting the second output signal from the matching unit to the load resistor.
摘要翻译： 放大装置包括分割单元，用于将输入信号分成第一分割信号和第二分割信号; 移相单元，用于分别移相第一分割信号和第二分割信号; 第一放大单元，用于放大第一相移信号并输出该信号作为第一输出信号; 第二放大单元，用于以与第一放大单元完全相同的方式放大第二相移信号并输出该信号作为第二输出信号; 以及匹配单元，用于将第一输出信号和第二输出信号分别匹配到第一传输单元和第二传输单元。 第一传输单元用于将第一输出信号从匹配单元发送到负载电阻器，第二传输单元用于将第二输出信号从匹配单元发送到负载电阻器。
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公开(公告)号：US20090231032A1
公开(公告)日：2009-09-17
申请号：US12379137
申请日：2009-02-13
申请人： Manabu Nakamura , Taizo Ito , Yoichi Okubo , Naoki Hongo
发明人： Manabu Nakamura , Taizo Ito , Yoichi Okubo , Naoki Hongo
IPC分类号： H03F3/68
CPC分类号： H03F1/0294 , H03F1/56 , H03F3/602 , H03F2200/222 , H03F2200/387 , H03F2200/423
摘要： An amplifying apparatus includes a splitting unit for splitting an input signal into a first split signal and a second split signal; phase-shifting unit for phase-shifting the first split signal and the second split signal, respectively; a first amplifying unit for amplifying a first phase-shifted signal and outputting the signal as a first output signal; a second amplifying unit for amplifying, in a substantially identical manner to the first amplifying unit, a second phase-shifted signal and outputting the signal as a second output signal; and a matching unit for matching the first output signal and the second output signal to a first transmission unit and a second transmission unit, respectively. The first transmission unit is for transmitting the first output signal from the matching unit to a load resistor, and the second transmission unit is for transmitting the second output signal from the matching unit to the load resistor.
摘要翻译： 放大装置包括分割单元，用于将输入信号分成第一分割信号和第二分割信号; 移相单元，用于分别移相第一分割信号和第二分割信号; 第一放大单元，用于放大第一相移信号并输出该信号作为第一输出信号; 第二放大单元，用于以与第一放大单元完全相同的方式放大第二相移信号并输出该信号作为第二输出信号; 以及匹配单元，用于将第一输出信号和第二输出信号分别匹配到第一传输单元和第二传输单元。 第一传输单元用于将第一输出信号从匹配单元发送到负载电阻器，第二传输单元用于将第二输出信号从匹配单元发送到负载电阻器。
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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。
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7.发明申请Non-linear distortion detection method and distortion compensation amplifying device 有权非线性失真检测方法和失真补偿放大装置公开(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
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。
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8.发明授权Non-linear distortion detection method and distortion compensation amplifying device 有权非线性失真检测方法和失真补偿放大装置公开(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
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。
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9.发明授权公开(公告)号：US07957710B2
公开(公告)日：2011-06-07
申请号：US12216092
申请日：2008-06-30
CPC分类号： H03F1/0227 , H03F1/0205 , H03F1/32 , H03F3/24 , H03F2200/102 , H03F2200/99
摘要： A DCDC converter includes a signal splitting unit that splits an input signal into N signal components; N DCDC converter elements that process individually the N split signals; and an adder that adds outputs from the plural DCDC converter elements to generate output signals. Each of the DCDC converter elements has an operation band narrower than an applicable frequency band of the input signal, and selects a design parameter that allows a conversion efficiency of the DCDC converter elements to be optimized for any band of the applicable frequency bands. For example, the parameter of a PMOS transistor and a NMOS transistor, which configure an inverter is designed to optimize the efficiency at any of frequency bands. The frequency band of the input signal is split, and each of the split outputs is input to a DCDC converter element that has a corresponding frequency and high efficiency characteristic.
摘要翻译： DCDC转换器包括将输入信号分解为N个信号分量的信号分离单元; N个DCDC转换器元件，分别处理N个分离信号; 以及加法器，其添加来自多个DCDC转换器元件的输出以产生输出信号。 每个DCDC转换器元件具有比输入信号的适用频带窄的操作频带，并且选择允许DCDC转换器元件的转换效率针对适用频带的任何频带进行优化的设计参数。 例如，配置反相器的PMOS晶体管和NMOS晶体管的参数被设计为优化任何频带处的效率。 输入信号的频带被分离，并且每个分离输出被输入到具有对应的频率和高效率特性的DCDC转换器元件。
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10.发明申请公开(公告)号：US20090011728A1
公开(公告)日：2009-01-08
申请号：US12216092
申请日：2008-06-30
CPC分类号： H03F1/0227 , H03F1/0205 , H03F1/32 , H03F3/24 , H03F2200/102 , H03F2200/99
摘要： A DCDC converter includes a signal splitting unit that splits an input signal into N signal components; N DCDC converter elements that process individually the N split signals; and an adder that adds outputs from the plural DCDC converter elements to generate output signals. Each of the DCDC converter elements has an operation band narrower than an applicable frequency band of the input signal, and selects a design parameter that allows a conversion efficiency of the DCDC converter elements to be optimized for any band of the applicable frequency bands. For example, the parameter of a PMOS transistor and a NMOS transistor, which configure an inverter is designed to optimize the efficiency at any of frequency bands. The frequency band of the input signal is split, and each of the split outputs is input to a DCDC converter element that has a corresponding frequency and high efficiency characteristic.
摘要翻译： DCDC转换器包括将输入信号分解为N个信号分量的信号分离单元; N个DCDC转换器元件，分别处理N个分离信号; 以及加法器，其添加来自多个DCDC转换器元件的输出以产生输出信号。 每个DCDC转换器元件具有比输入信号的适用频带窄的操作频带，并且选择允许DCDC转换器元件的转换效率针对适用频带的任何频带进行优化的设计参数。 例如，配置反相器的PMOS晶体管和NMOS晶体管的参数被设计为优化任何频带处的效率。 输入信号的频带被分离，并且每个分离输出被输入到具有对应的频率和高效率特性的DCDC转换器元件。
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