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公开(公告)号：US08970295B2
公开(公告)日：2015-03-03
申请号：US13603313
申请日：2012-09-04
CPC分类号： H03F3/217 , H03F1/0205 , H03F3/2171 , H03F3/2176 , H03F3/245
摘要： In accordance with an embodiment, a system includes a first amplifier and a first bandpass filter having an input coupled in series with an output of the first amplifier, and an output configured to be coupled to a load. The bandpass filter has a lower input impedance at an in-band center frequency than at out-of-band frequencies, and the first amplifier is configured to receive a pulse width modulated waveform filtered according to a first transfer function that attenuates sidebands of the pulse width modulated waveform.
摘要翻译： 根据实施例，系统包括第一放大器和第一带通滤波器，其具有与第一放大器的输出串联耦合的输入，以及被配置为耦合到负载的输出。 带通滤波器在带内中心频率处具有比在带外频率下更低的输入阻抗，并且第一放大器被配置为接收根据第一传递函数滤波的脉宽调制波形，该第一传递函数衰减脉冲的边带 宽调制波形。
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公开(公告)号：US20140062604A1
公开(公告)日：2014-03-06
申请号：US13603313
申请日：2012-09-04
CPC分类号： H03F3/217 , H03F1/0205 , H03F3/2171 , H03F3/2176 , H03F3/245
摘要： In accordance with an embodiment, a system includes a first amplifier and a first bandpass filter having an input coupled in series with an output of the first amplifier, and an output configured to be coupled to a load. The bandpass filter has a lower input impedance at an in-band center frequency than at out-of-band frequencies, and the first amplifier is configured to receive a pulse width modulated waveform filtered according to a first transfer function that attenuates sidebands of the pulse width modulated waveform.
摘要翻译： 根据实施例，系统包括第一放大器和第一带通滤波器，其具有与第一放大器的输出串联耦合的输入，以及被配置为耦合到负载的输出。 带通滤波器在带内中心频率处具有比在带外频率下更低的输入阻抗，并且第一放大器被配置为接收根据第一传递函数滤波的脉宽调制波形，该第一传递函数衰减脉冲的边带 宽调制波形。
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公开(公告)号：US20100073102A1
公开(公告)日：2010-03-25
申请号：US12237893
申请日：2008-09-25
申请人： Peter Singerl , Thomas Blocher , Andreas Wiesbauer
发明人： Peter Singerl , Thomas Blocher , Andreas Wiesbauer
摘要： An apparatus and methods for a baseband modulator configured to code amplitude signals into pulse width modulated time signals comprising at least two amplitude levels is disclosed. A pulse width modulator can receive a component signal of a baseband complex signal and generate a discrete-time pulse width modulated signal. This signal can be converted to a continuous time signal, such as a pulse-width modulated time signal and can be shifted to a carrier signal corresponding respectively to the component signal by a switch. Bursts sequences are generated to an input of a switched amplifier for driving operation of the amplifier therein.
摘要翻译： 公开了一种用于基带调制器的装置和方法，其被配置为将幅度信号编码为包括至少两个幅度电平的脉宽调制时间信号。 脉宽调制器可以接收基带复信号的分量信号并产生离散时间脉宽调制信号。 该信号可以转换成连续时间信号，例如脉冲宽度调制时间信号，并且可以通过开关移位到分别对应于分量信号的载波信号。 突发序列被产生到用于驱动放大器的操作的开关放大器的输入端。
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公开(公告)号：US08767814B2
公开(公告)日：2014-07-01
申请号：US13417000
申请日：2012-03-09
IPC分类号： H03K7/08
CPC分类号： H03K7/08 , H04L25/4902
摘要： A pulse-width modulator (PWM) includes a plurality of comparators for comparing an input signal with a plurality of reference signals and for providing a plurality of corresponding comparison signals. The pulse-width modulator also includes a combinational logic for receiving the plurality of comparison signals and for generating a plurality of binary pulse-width modulation signals on the basis of the plurality of comparison signals. At most only a currently selected binary pulse-width modulation signal of the binary pulse-width modulation signals is at a first signal level at a time. The currently selected binary pulse-width modulation signal is associated to a specific reference signal of the plurality of reference signals which is currently closest to the input signal among the plurality of reference signals in terms of a given amplitude relation between the plurality of reference signals and the input signal.
摘要翻译： 脉冲宽度调制器（PWM）包括多个比较器，用于将输入信号与多个参考信号进行比较，并用于提供多个对应的比较信号。 脉冲宽度调制器还包括用于接收多个比较信号的组合逻辑，并且用于基于多个比较信号产生多个二进制脉冲宽度调制信号。 二进制脉冲宽度调制信号中最多只有当前选择的二进制脉宽调制信号一次处于第一信号电平。 当前选择的二进制脉冲宽度调制信号与多个参考信号中当前最接近多个参考信号中的输入信号的特定参考信号相关联，就多个参考信号和 输入信号。
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公开(公告)号：US08374233B2
公开(公告)日：2013-02-12
申请号：US12237893
申请日：2008-09-25
申请人： Peter Singerl , Thomas Blocher , Andreas Wiesbauer
发明人： Peter Singerl , Thomas Blocher , Andreas Wiesbauer
IPC分类号： H03K7/08
摘要： An apparatus and methods for a baseband modulator configured to code amplitude signals into pulse width modulated time signals comprising at least two amplitude levels is disclosed. A pulse width modulator can receive a component signal of a baseband complex signal and generate a discrete-time pulse width modulated signal. This signal can be converted to a continuous time signal, such as a pulse-width modulated time signal and can be shifted to a carrier signal corresponding respectively to the component signal by a switch. Bursts sequences are generated to an input of a switched amplifier for driving operation of the amplifier therein.
摘要翻译： 公开了一种用于基带调制器的装置和方法，其被配置为将幅度信号编码为包括至少两个幅度电平的脉宽调制时间信号。 脉宽调制器可以接收基带复信号的分量信号并产生离散时间脉宽调制信号。 该信号可以转换为连续时间信号，例如脉冲宽度调制时间信号，并且可以通过开关移位到分别对应于分量信号的载波信号。 突发序列被产生到用于驱动放大器的操作的开关放大器的输入端。
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公开(公告)号：US20090270056A1
公开(公告)日：2009-10-29
申请号：US12111654
申请日：2008-04-29
申请人： Peter Singerl , Andreas Wiesbauer
发明人： Peter Singerl , Andreas Wiesbauer
CPC分类号： H04B1/0475 , H03F1/02 , H03F3/24 , H04B2001/045
摘要： A power amplifier includes a baseband modulator configured to receive a baseband amplitude component and generate a baseband modulated pulse string, an oscillator configured to receive a baseband phase component and generate phase modulated complex carrier signals, a complex up-converter configured to receive and mix the baseband modulated pulse string with the phase modulated complex carrier signals into mixed product signals, and two or more switched mode power amplifiers coupled to the complex up-converter, configured to amplify and switch the mixed product signals at the carrier frequency. The power amplifier further comprises complex filters individually coupled to one of the switch mode power amplifiers, configured to suppress image components in the amplified and switched mixed product signals, and a power combiner coupled to the two or more complex filters, configured to combine the real component of the complex filtered and amplified mixed product signals to generate an RF transmission signal.
摘要翻译： 功率放大器包括：基带调制器，被配置为接收基带振幅分量并产生基带调制脉冲串;振荡器，被配置为接收基带相位分量并产生相位调制的复数载波信号;复合上变频器，被配置为接收和混合 具有相位调制复载波信号的基带调制脉冲串到混合乘积信号中，并且耦合到复合上变频器的两个或更多个开关模式功率放大器被配置为在载波频率处放大和切换混合乘积信号。 功率放大器还包括单独耦合到开关模式功率放大器之一的复合滤波器，其被配置为抑制放大和切换的混合乘积信号中的图像分量，以及耦合到两个或更多个复杂滤波器的功率组合器，被配置为组合真实的 复合滤波和放大的混合乘积信号的分量以产生RF传输信号。
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公开(公告)号：US07606539B2
公开(公告)日：2009-10-20
申请号：US11500107
申请日：2006-08-07
申请人： Peter Singerl , Heinz Koeppl
发明人： Peter Singerl , Heinz Koeppl
CPC分类号： H04B1/0475 , H03F1/3241 , H03F1/3247 , H03F1/34 , H03F3/24 , H03F2200/207 , H04B2001/0425 , H04B2001/0433
摘要： In one embodiment, a circuit comprises an adaptive predistorter and a nonlinear element coupled to an output of the predistorter. The predistorter is operative to predistort an input signal according to predistortion control parameters at a given sampling rate. The circuit further comprises an identification unit and a translation unit. The identification unit identifies nonlinearity parameters representing the nonlinearity of the nonlinear element by sampling the output of the nonlinear element at an identification sampling rate lower than twice a bandwidth at the output of the nonlinear element. The translation unit translates the identified nonlinearity parameters into the predistortion control parameters. Other systems and methods are disclosed.
摘要翻译： 在一个实施例中，电路包括耦合到预失真器的输出的自适应预失真器和非线性元件。 预失真器用于根据预失真控制参数以给定的采样速率来预失真输入信号。 电路还包括识别单元和翻译单元。 识别单元通过以低于非线性元件的输出的带宽的两倍的识别采样率对非线性元件的输出进行采样来识别表示非线性元件的非线性的非线性参数。 翻译单元将所识别的非线性参数转换为预失真控制参数。 公开了其它系统和方法。
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公开(公告)号：US20080057882A1
公开(公告)日：2008-03-06
申请号：US11512635
申请日：2006-08-30
申请人： Peter Singerl , Gernot Kubin
发明人： Peter Singerl , Gernot Kubin
CPC分类号： H03F1/3258
摘要： A model network of a nonlinear circuitry includes one or more static nonlinear elements and a plurality of linear filters with transfer functions. A method for determining the model network includes performing an input amplitude-to-output amplitude measurement of the nonlinear circuitry and performing an input amplitude-to-output phase measurement of the nonlinear circuitry. The transfer functions are calculated on the basis of results of the input amplitude-to-output amplitude measurement and input amplitude-to-output phase measurement.
摘要翻译： 非线性电路的模型网络包括一个或多个静态非线性元件和具有传递函数的多个线性滤波器。 用于确定模型网络的方法包括执行非线性电路的输入幅度 - 输出幅度测量并且执行非线性电路的输入幅度 - 输出相位测量。 基于输入幅度 - 输出幅度测量和输入幅度 - 输出相位测量的结果计算传递函数。
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公开(公告)号：US08626089B2
公开(公告)日：2014-01-07
申请号：US12511999
申请日：2009-07-29
申请人： Peter Singerl , Heinz Koeppl
发明人： Peter Singerl , Heinz Koeppl
CPC分类号： H04B1/0475 , H03F1/3241 , H03F1/3247 , H03F1/34 , H03F3/24 , H03F2200/207 , H04B2001/0425 , H04B2001/0433
摘要： In one embodiment, a circuit comprises an adaptive predistorter and a nonlinear element coupled to an output of the predistorter. The predistorter is operative to predistort an input signal according to predistortion control parameters at a given sampling rate. The circuit further comprises an identification unit and a translation unit. The identification unit identifies nonlinearity parameters representing the nonlinearity of the nonlinear element by sampling the output of the nonlinear element at an identification sampling rate lower than twice a bandwidth at the output of the nonlinear element. The translation unit translates the identified nonlinearity parameters into the predistortion control parameters. Other systems and methods are disclosed.
摘要翻译： 在一个实施例中，电路包括耦合到预失真器的输出的自适应预失真器和非线性元件。 预失真器用于根据预失真控制参数以给定的采样速率来预失真输入信号。 电路还包括识别单元和翻译单元。 识别单元通过以低于非线性元件的输出的带宽的两倍的识别采样率对非线性元件的输出进行采样来识别表示非线性元件的非线性的非线性参数。 翻译单元将所识别的非线性参数转换为预失真控制参数。 公开了其它系统和方法。
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公开(公告)号：US20130235923A1
公开(公告)日：2013-09-12
申请号：US13417000
申请日：2012-03-09
CPC分类号： H03K7/08 , H04L25/4902
摘要： A pulse-width modulator (PWM) includes a plurality of comparators for comparing an input signal with a plurality of reference signals and for providing a plurality of corresponding comparison signals. The pulse-width modulator also includes a combinational logic for receiving the plurality of comparison signals and for generating a plurality of binary pulse-width modulation signals on the basis of the plurality of comparison signals. At most only a currently selected binary pulse-width modulation signal of the binary pulse-width modulation signals is at a first signal level at a time. The currently selected binary pulse-width modulation signal is associated to a specific reference signal of the plurality of reference signals which is currently closest to the input signal among the plurality of reference signals in terms of a given amplitude relation between the plurality of reference signals and the input signal.
摘要翻译： 脉冲宽度调制器（PWM）包括多个比较器，用于将输入信号与多个参考信号进行比较，并用于提供多个对应的比较信号。 脉冲宽度调制器还包括用于接收多个比较信号的组合逻辑，并且用于基于多个比较信号产生多个二进制脉冲宽度调制信号。 二进制脉冲宽度调制信号中最多只有当前选择的二进制脉宽调制信号一次处于第一信号电平。 当前选择的二进制脉冲宽度调制信号与多个参考信号中当前最接近多个参考信号中的输入信号的特定参考信号相关联，就多个参考信号和 输入信号。
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