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71. 发明授权

US09402128B2 Adaptive rail power amplifier technology 有权
标题翻译：自适应轨道功率放大技术
公开(公告)号：US09402128B2
公开(公告)日：2016-07-26
申请号：US13859889
申请日：2013-04-10
申请人： James K. Waller, Jr.
发明人： James K. Waller, Jr.
IPC分类号： H03F1/02 , H04R3/00
CPC分类号： H03F1/0238 , H03F1/0233 , H03F3/183 , H03F3/217 , H03F2200/375 , H04R3/00
摘要： Adaptive rail power amplifier technology processes an audio signal by feeding the audio signal to the power amplifier to produce an output signal, applying positive and negative power supply voltages centered with respect to the audio signal to the positive and negative power supply rails of the power amplifier, comparing the output signal with the positive and negative power supply rail voltages to produce dynamically varying positive and negative control signals, feeding the positive and negative control signals to positive and negative high current charge pumps and adding supplemental positive and negative voltages from the positive and negative charge pumps to the positive and negative power supply rails to produce a linear adaptive rail voltage which tracks the output signal.
摘要翻译：自适应轨道功率放大器技术通过将音频信号馈送到功率放大器来处理音频信号以产生输出信号，将相对于音频信号的中心的正和负电源电压施加到功率放大器的正和负电源轨将输出信号与正负电源轨电压进行比较，以产生动态变化的正负控制信号，将正负控制信号馈送到正，负大电流电荷泵，并从正和负电压电荷泵添加补充正，负电压负电荷泵到正和负电源轨，以产生跟踪输出信号的线性自适应轨电压。

72. 发明申请

US20160197587A1 POWER AMPLIFIERS COUPLED IN SERIES 有权
标题翻译：功率放大器连接在一起
公开(公告)号：US20160197587A1
公开(公告)日：2016-07-07
申请号：US14589128
申请日：2015-01-05
申请人： The TC Group A/S
发明人： Lars Arknæs-Pedersen
IPC分类号： H03F1/56 , H04R27/00 , H03F3/217 , H03F3/183 , H03F3/21
CPC分类号： H03F1/565 , H03F1/0283 , H03F3/183 , H03F3/187 , H03F3/211 , H03F3/217 , H03F3/2173 , H03F2200/03 , H03F2200/189 , H03F2200/321 , H03F2200/351 , H03F2203/21142 , H04R27/00
摘要： A power amplifier system is disclosed, the power amplifier system comprising two power supplies, four amplifier half-bridges arranged as two amplifier full bridges, and an audio processor for establishing control signals for the amplifier full-bridges, where the audio processor and one of the power supplies share a common ground potential, whereas the other power supply has a floating ground; wherein both the amplifier with common ground and the amplifier with floating ground have an amplifier interconnection output and an amplifier output, and wherein the amplifier interconnection outputs are connected, and a load is connected to the amplifier outputs. Further are disclosed amplification methods and PA systems correspondingly.
摘要翻译：公开了一种功率放大器系统，功率放大器系统包括两个电源，四个放大器半桥布置为两个放大器全桥，以及用于建立放大器全桥的控制信号的音频处理器，其中音频处理器和电源具有共同的潜力，而另一个电源具有浮动面; 其中具有公共地的放大器和具有浮动接地的放大器都具有放大器互连输出和放大器输出，并且其中放大器互连输出被连接，并且负载连接到放大器输出。另外公开了放大方法和PA系统。

73. 发明授权

US09385669B2 Class-E outphasing power amplifier with efficiency and output power enhancement circuits and method 有权
标题翻译：具有效率和输出功率增强电路的E类外相功率放大器和方法
公开(公告)号：US09385669B2
公开(公告)日：2016-07-05
申请号：US14312239
申请日：2014-06-23
申请人： Texas Instruments Incorporated
发明人： Aritra Banerjee , Joonhoi Hur , Baher Haroun , Nathan Richard Schemm , Rahmi Hezar , Lei Ding
IPC分类号： H03F3/217 , H03F3/21 , H03F3/193 , H03F1/02 , H03F3/45
CPC分类号： H03F1/0205 , H03F1/0294 , H03F3/193 , H03F3/211 , H03F3/217 , H03F3/2171 , H03F3/2173 , H03F3/2176 , H03F3/45179 , H03F2200/391 , H03F2200/451 , H03F2203/21139 , H03F2203/21142
摘要： An outphasing amplifier includes a first class-E power amplifier (16-1) having an output coupled to a first conductor (31-1) and an input receiving a first RF drive signal (S1(t)). A first reactive element (CA-1) is coupled between the first conductor and a second conductor (30-1). A second reactive element (LA-1) is coupled between the second conductor and a third conductor (32-1). A second class-E power amplifier (17-1) includes an output coupled to a fourth conductor (31-2) and an input coupled to a second RF drive signal (S2(t)), a third reactive element (CA-3) coupled between the second and fourth conductors. Outputs of the first and second power amplifiers are combined by the first, second and third reactive elements to produce an output current in a load (R). An efficiency enhancement circuit (LEEC-1) is coupled between the first and fourth conductors to improve power efficiency at back-off power levels. Power enhancement circuits (20-1,2) are coupled to the first and fourth conductors, respectively.
摘要翻译：外相放大器包括具有耦合到第一导体（31-1）的输出的第一E类功率放大器（16-1）和接收第一RF驱动信号（S1（t））的输入。第一电抗元件（CA-1）耦合在第一导体和第二导体（30-1）之间。第二电抗元件（LA-1）耦合在第二导体和第三导体（32-1）之间。第二类E功率放大器（17-1）包括耦合到第四导体（31-2）的输出和耦合到第二RF驱动信号（S2（t））的输入，第三反应元件（CA-3 ）耦合在第二和第四导体之间。第一和第二功率放大器的输出由第一，第二和第三无功元件组合以在负载（R）中产生输出电流。效率增强电路（LEEC-1）耦合在第一和第四导体之间，以提高退避功率电平的功率效率。功率增强电路（20-1,2）分别耦合到第一和第四导体。

74. 发明授权

US09385659B2 Device and method for controlling power amplifier 有权
标题翻译：用于控制功率放大器的装置和方法
公开(公告)号：US09385659B2
公开(公告)日：2016-07-05
申请号：US14741970
申请日：2015-06-17
申请人： Avago Technologies General IP (Singapore) Pte. Ltd.
发明人： Michael Wendell Vice , Sungkil Hwang
IPC分类号： H03G3/20 , H03F1/02 , H03G1/00 , H03G3/00 , H03G3/30 , H03F3/19 , H03F3/217
CPC分类号： H03F1/0205 , H03F1/0255 , H03F3/19 , H03F3/21 , H03F3/217 , H03F2200/102 , H03F2200/451 , H03G1/0017 , H03G1/0094 , H03G3/004 , H03G3/20 , H03G3/3042
摘要： A control device provides a supply voltage to an output transistor of a power amplifier. The control device includes a detector encoder, a switch sequencer and a power switch. The detector encoder receives a detection signal indicating a negative peak voltage level of an output signal of the power amplifier, receives a reference signal indicating a critical voltage of the detection signal at which the negative peak voltage level of the output transistor is deemed to be out of voltage with reference to saturation voltage of the output transistor, compares the detection and reference signals, and outputs Boost Request and Recovery Request signals in response. The switch sequencer translates the Boost Request and Recovery Request signals into multiple control bits. The power switch coordinates switching among a no boost voltage and multiple boost voltages based on the control bits, and outputs one of these voltages as the supply voltage.
摘要翻译：控制装置向功率放大器的输出晶体管提供电源电压。控制装置包括检测器编码器，开关定序器和电源开关。检测器编码器接收表示功率放大器的输出信号的负峰值电压电平的检测信号，接收表示输出晶体管的负峰值电压被认为为输出的检测信号的临界电压的参考信号参考输出晶体管的饱和电压，比较检测和参考信号，并响应输出升压请求和恢复请求信号。开关顺序器将升压请求和恢复请求信号转换为多个控制位。功率开关基于控制位来协调在非升压电压和多个升压电压之间切换，并将这些电压中的一个作为电源电压输出。

75. 发明申请

US20160156317A1 AMPLIFIER HAVING ENHANCED POWER EFFICIENCY 有权
标题翻译：具有增强功率效率的放大器
公开(公告)号：US20160156317A1
公开(公告)日：2016-06-02
申请号：US14558196
申请日：2014-12-02
申请人： Sumitomo Electric Device Innovations, Inc.
发明人： Shingo INOUE
IPC分类号： H03F1/02 , H03F3/21 , H03F3/19
CPC分类号： H03F1/0233 , H03F1/0222 , H03F3/19 , H03F3/217 , H03F2200/102 , H03F2200/432 , H03F2200/451 , H03F2200/504
摘要： An RF amplifier with enhance power efficiency is disclosed. The RF amplifier traces the envelope of the input RF signal and varies the supply voltage to the final FET depending on the detected envelope through a linear power supply and a switching power supply superposed on the linear power supply. The linear power supply promptly responds the change of the envelope and gradually decreases the supply current as maintaining the supply voltage. The switching power supply takes over the supplement of the supply current to the final FET.
摘要翻译：公开了一种具有增强功率效率的RF放大器。 RF放大器跟踪输入RF信号的包络，并根据检测到的包络通过线性电源和叠加在线性电源上的开关电源来改变最终FET的电源电压。线性电源迅速响应包络的变化，并逐渐减小供电电流，保持供电电压。开关电源接管对最终FET的电源电流的补充。

76. 发明授权

US09287826B2 Sine-cosine modulator 有权
标题翻译：正弦余弦调制器
公开(公告)号：US09287826B2
公开(公告)日：2016-03-15
申请号：US14425055
申请日：2012-09-04
申请人： Stefan Wehmeier
发明人： Stefan Wehmeier
IPC分类号： H03C3/02 , H03F3/217
CPC分类号： H03C3/02 , H03F3/217 , H03F3/2171
摘要： The invention relates to a self-oscillating pulse-width modulation amplifier in the form of a sine-cosine modulator (10) comprising at least two comparators (13, 14), two integrators (11, 12), a power switching stage (15), and negative feedback coupling with a low-frequency signal input and output. To achieve a maximum modulation factor, there are provisions with the aid of the comparators (13, 14) and integrators (11, 12) for the generation of sine- and cosine-square-wave voltages and sine- and co-sine-triangle-wave voltages that drive the power switching stage (15) in part, wherein the output of the power switching stage (15) combined with an LC low-pass filter (16) forms the low-frequency signal output. This brings about a situation in which a stable natural frequency exists and the modulation factor can be increased to nearly 100%. At the same time, a very low level of distortion is achieved and no distortion components higher than K3 arise, so there is a significant improvement vis-a-vis the known pulse-width modulation amplifiers.
摘要翻译：本发明涉及一种正弦余弦调制器（10）形式的自振荡脉宽调制放大器，包括至少两个比较器（13,14），两个积分器（11,12），功率开关级（15））和负反馈耦合与低频信号输入和输出。为了实现最大调制因子，借助于比较器（13,14）和积分器（11,12）来制定正弦和余弦方波电压以及正弦和正弦三角形的规定 - 部分地驱动功率开关级（15）的波电压，其中与LC低通滤波器（16）组合的功率开关级（15）的输出形成低频信号输出。这导致存在稳定的固有频率并且调制因子可以增加到接近100％的情况。同时，实现了非常低的失真水平，并且不会产生高于K3的失真分量，因此相对于已知的脉冲宽度调制放大器有显着的改进。

77. 发明申请

US20160065177A1 DEVICES AND METHODS FOR CONVERTING DIGITAL SIGNALS 有权
标题翻译：用于转换数字信号的设备和方法
公开(公告)号：US20160065177A1
公开(公告)日：2016-03-03
申请号：US14471554
申请日：2014-08-28
申请人： Cambridge Silicon Radio Limited
发明人： David Chappaz
IPC分类号： H03H11/04 , H03K7/08
CPC分类号： H03H11/0405 , H03F3/217 , H03F3/2175 , H03K7/08 , H03M3/432 , H03M3/506
摘要： A signal converter directly converts pulse-density-modulated (PDM) signals into pulse-width-modulated (PWM) signals. A noise-shaping loop architecture can be configured to apply a signal transfer function having a low-pass filter effect, and a noise transfer function having a high-pass filter effect. Decimation and interpolation can ensure that the noise-shaping loop architecture operates at a first sampling frequency, while the PWM modulator operates at a second, higher sampling frequency.
摘要翻译：信号转换器将脉冲密度调制（PDM）信号直接转换成脉冲宽度调制（PWM）信号。噪声整形环路结构可以被配置为应用具有低通滤波器效应的信号传递函数和具有高通滤波器效应的噪声传递函数。抽取和插值可以确保噪声整形环路架构以第一采样频率工作，而PWM调制器以第二较高的采样频率工作。

78. 发明申请

US20160065140A1 CLASS D AMPLIFIER AND ELECTRONIC DEVICES INCLUDING THE SAME 有权
标题翻译：类别D放大器和包括其的电子设备
公开(公告)号：US20160065140A1
公开(公告)日：2016-03-03
申请号：US14540855
申请日：2014-11-13
申请人： Hisense Electric Co., Ltd. , Hisense USA Corp. , Hisense International Co., Ltd.
发明人： Xuebin SUN , Jin LIU
IPC分类号： H03F1/02 , H03F3/217
CPC分类号： H03F3/217 , H03F1/0222 , H03F3/195 , H03F3/245 , H03F3/45475 , H03F2200/171 , H03F2200/78 , H03F2203/45512 , H03F2203/45594
摘要： An electronic device includes a waveform generator, a comparator, and an amplifier. The waveform generator receives a voltage from a power supply to the electronic device and outputs a voltage waveform signal. The comparator compares an input signal and the voltage waveform signal to output a first pulse-width-modulated signal. The amplifier receives the first pulse-width-modulated signal and outputs a second pulse-width-modulated signal.
摘要翻译：电子设备包括波形发生器，比较器和放大器。波形发生器接收来自电子设备的电源的电压并输出电压波形信号。比较器比较输入信号和电压波形信号以输出第一脉冲宽度调制信号。放大器接收第一脉冲宽度调制信号并输出第二脉冲宽度调制信号。

79. 发明申请

US20160065134A1 ASYMMETRIC H-BRIDGE IN A CLASS D POWER AMPLIFIER 有权
标题翻译：一类D型放大器中的不对称H型桥
公开(公告)号：US20160065134A1
公开(公告)日：2016-03-03
申请号：US14475822
申请日：2014-09-03
申请人： QUALCOMM Incorporated
发明人： Jingxue Lu , Ankit Srivastava , Haibo Fei
IPC分类号： H03F1/02 , H03F3/217 , H03F3/183
CPC分类号： H03F1/0205 , H03F1/523 , H03F3/183 , H03F3/217 , H03F3/2173 , H03F3/45179 , H03F3/45475 , H03F2200/03 , H03F2200/33 , H03F2200/351 , H03F2200/481
摘要： Disclosed is an amplifier circuit having an output stage that includes an H-bridge circuit. The H-bridge circuit includes sense resistors on one side of the circuit. A current detection circuit can produce an output indicative of current flow through a load based on voltages across the sense resistors.
摘要翻译：公开了具有包括H桥电路的输出级的放大器电路。 H桥电路包括电路一侧的检测电阻。电流检测电路可以基于感测电阻器两端的电压产生指示通过负载的电流的输出。

80. 发明授权

US09269345B2 Signal processing 有权
标题翻译：信号处理
公开(公告)号：US09269345B2
公开(公告)日：2016-02-23
申请号：US14119512
申请日：2012-05-15
申请人： Christian Fraisse , Angelo Nagari
发明人： Christian Fraisse , Angelo Nagari
IPC分类号： A61F11/06 , G10K11/16 , G10K11/178 , H03F3/217 , H03K7/08
CPC分类号： G10K11/178 , H03F3/217 , H03K7/08
摘要： The electronic device and a corresponding signal processing method disclosed herein reduces electromagnetic noise. To that end, the electronic device includes a delay line, an oscillator, and a modulator. The delay line generates a spread spectrum clock signal from an input clock signal, where a timing jitter and a period of jitter of the spread spectrum clock signal are controlled at each period of the spread spectrum clock signal based on a digital code. The oscillator uses the spread spectrum clock signal to generate a processing signal. The modulator modulates the processing signal as a function of an audio signal.
摘要翻译：本文公开的电子设备和相应的信号处理方法降低了电磁噪声。为此，电子设备包括延迟线，振荡器和调制器。延迟线从输入时钟信号产生扩频时钟信号，其中基于数字码在扩频时钟信号的每个周期处控制定时抖动和扩频时钟信号的抖动周期。振荡器使用扩频时钟信号来产生处理信号。调制器根据音频信号调制处理信号。

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