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公开(公告)号：US09106207B2
公开(公告)日：2015-08-11
申请号：US13709743
申请日：2012-12-10
申请人： LSI Corporation
发明人： Peter Kiss , Said E. Abdelli , Kameran Azadet , Donald R. Laturell , James F. MacDonald , Ross S. Wilson
CPC分类号： H03H11/00 , H03F3/2175 , H03F3/24 , H03M3/50
摘要： A switching power amplifier for multi-path signal interleaving includes a signal splitter configured to split a multi-bit source signal from a digital source into a plurality of multi-bit signals, one or more fractional delay filters configured to delay one or more signals of the plurality of signals by a selected time, a plurality of bit-stream converters, each bit-stream converter configured to receive one of the multi-bit signals, each bit-stream converter further configured to generate a single-bit signal based on a received multi-bit signal, a plurality of switching power amplifiers, each switching power amplifier configured to receive a single-bit signal from one of the bit-stream converters, and an interleaver configured to generate an interleaved output by interleaving two or more outputs of the switching power amplifiers, wherein a sampling frequency of the interleaved output of the interleaver is greater than the selected sampling frequency of the multi-bit source signal.
摘要翻译： 一种用于多径信号交织的开关功率放大器包括：信号分配器，被配置为将来自数字源的多位源信号分离成多个多位信号;一个或多个分数延迟滤波器，被配置为延迟一个或多个信号 所述多个信号经过选定的时间，多个比特流转换器，每个比特流转换器被配置为接收所述多比特信号中的一个，每个比特流转换器还被配置为基于所述多比特信号生成单比特信号 接收的多位信号，多个开关功率放大器，每个开关功率放大器被配置为从位流转换器之一接收单位信号;以及交织器，被配置为通过交织两个或多个输出 开关功率放大器，其中交织器的交错输出的采样频率大于所选择的多位源信号的采样频率。
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2.发明授权Low-distortion class S power amplifier with constant-impedance bandpass filter 有权具有恒定阻抗带通滤波器的低失真等级S功率放大器公开(公告)号：US08976898B1
公开(公告)日：2015-03-10
申请号：US14086811
申请日：2013-11-21
申请人： LSI Corporation
CPC分类号： H03H7/1775 , H03F1/3205 , H03F3/2173 , H03H7/0115 , H03H7/175 , H03H7/1758 , H03H7/1766
摘要： An amplification system and an integrated circuit include a bandpass filter and an amplifier. The bandpass filter filters an input digital bitstream or an amplified signal to provide a filtered signal. The bandpass filter exhibits constant input impedance over a passband associated with the input digital bitstream, and a stopband associated with shaped-noise energy, thereby increasing signal-to-noise ratio and/or signal-to-distortion ratio associated with the filtered signal. The amplifier amplifies at least one of the filtered signal and the input digital bitstream to provide the amplified signal. A method of providing amplification includes bandpass filtering an input digital bitstream or an amplified signal to provide a filtered signal, providing constant input impedance over a passband and a stopband by the bandpass filtering, and amplifying at least one of the filtered signal and the input digital bitstream to provide the amplified signal.
摘要翻译： 放大系统和集成电路包括带通滤波器和放大器。 带通滤波器对输入数字比特流或放大信号进行滤波以提供滤波信号。 带通滤波器在与输入数字比特流相关联的通带上呈现恒定的输入阻抗，以及与形状噪声能量相关联的阻带，从而增加与滤波信号相关联的信噪比和/或信号到失真比。 放大器放大滤波信号和输入数字位流中的至少一个以提供放大的信号。 提供放大的方法包括对输入数字比特流进行带通滤波或放大信号以提供经滤波的信号，通过带通滤波在通带和阻带上提供恒定的输入阻抗，以及放大滤波信号和输入数字 比特流以提供放大的信号。
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公开(公告)号：US08760225B1
公开(公告)日：2014-06-24
申请号：US13736442
申请日：2013-01-08
申请人： LSI Corporation
发明人： Ross S. Wilson , Said E. Abdelli , Peter Kiss , Donald R. Laturell , Kameran Azadet , James F. MacDonald
IPC分类号： H03F3/38
CPC分类号： H03F3/2171 , H03F3/193 , H03F3/195 , H03F3/245 , H03F3/305 , H03F3/45179 , H03F3/45183 , H03F2200/78 , H03F2203/45394 , H03F2203/45456 , H03F2203/45631 , H03F2203/45702
摘要： The invention may be embodied in a resynchronizing, push-pull drive circuit for driving the gate electrodes of a digital Class-S Radio Frequency Power Amplifier (RF-PA). A binary bitstream received from a bitstream generator, such as a sigma-delta modulator, Viterbi-based optimal-bit-pattern modulator sigma-delta, or other suitable modulator, is resynchronized to a low-jitter master clock, then converted to fast-rise, high-swing complementary digital signals to drive the gates of the Class-S RF-PA. The drive circuit provides a high slew-rate, large-swing, quasi-digital gate drive circuit to drive the significant gate capacitance of the RF-PA with sufficient rise times. A combination of bipolar transistor current switches and cascoded CMOS devices is employed to attain requisite performance. For example, the driving circuit is well suited for use with Class-S RF-PAs used in wireless communication systems.
摘要翻译： 本发明可以体现在用于驱动数字S类射频功率放大器（RF-PA）的栅电极的再同步推挽驱动电路中。 从比特流发生器（例如，Σ-Δ调制器，基于维特比的最佳位模式调制器Σ-Δ或其它合适的调制器）接收的二进制比特流被重新同步到低抖动主时钟， 上升，高挥发互补数字信号驱动S-S RF-PA的门。 驱动电路提供高压摆率，大摆幅，准数字栅极驱动电路，以足够的上升时间驱动RF-PA的显着栅极电容。 采用双极晶体管电流开关和级联CMOS器件的组合来实现必要的性能。 例如，驱动电路非常适用于无线通信系统中使用的S类RF-PA。
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公开(公告)号：US20140118966A1
公开(公告)日：2014-05-01
申请号：US13662659
申请日：2012-10-29
申请人： LSI CORPORATION
CPC分类号： H05K1/0216 , H01L23/4985 , H01L23/5387 , H01L2224/48472 , H01L2224/49111 , H01L2224/49175 , H01L2924/30107 , H01L2924/3011 , H05K1/028 , H05K3/306 , H05K3/4691 , H05K2201/042 , Y10T29/4913 , H01L2924/00
摘要： A electronic circuit with low inductance connections is disclosed. The electronic circuit includes a ground plane and a flex circuit. The flex circuit having a first surface generally facing the ground plane and a second surface opposite to the first surface. The flex circuit also having a flexible bridge defined thereof. The electronic circuit further includes a first electronic device communicatively coupled to the second surface of the flex circuit, a second electronic device communicatively coupled to the second surface of the flex circuit, and at least one conductive trace defined on the second surface of the flex circuit and extending along the flexible bridge. One end of the at least one conductive trace is configured for receiving an outbound current from the first electronic device and another end of the at least one conductive trace is communicatively coupled to the second electronic device through a vertical interconnect access.
摘要翻译： 公开了具有低电感连接的电子电路。 电子电路包括接地平面和柔性电路。 柔性电路具有大致面向接地平面的第一表面和与第一表面相对的第二表面。 柔性电路还具有由其限定的柔性桥。 电子电路还包括通信地耦合到柔性电路的第二表面的第一电子设备，通信地耦合到柔性电路的第二表面的第二电子设备，以及限定在柔性电路的第二表面上的至少一个导电迹线 并沿柔性桥延伸。 所述至少一个导电迹线的一端被配置为用于从所述第一电子器件接收出站电流，并且所述至少一个导电迹线的另一端通过垂直互连接入通信地耦合到所述第二电子器件。
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公开(公告)号：US08995521B2
公开(公告)日：2015-03-31
申请号：US13663534
申请日：2012-10-30
申请人： LSI Corporation
发明人： Donald R. Laturell , Said E. Abdelli , Peter Kiss , James F. MacDonald , Ross S. Wilson , Kameran Azadet
摘要： A method and system for high density pulse density modulation is disclosed. In accordance with the present disclosure, a modulation function is split in to two band limited streams using a complementary pair of non-linear functions. More specifically, one bitstream definition contains the peaks of the original function while the other bitstream contains a soft clipping version of the original bitstream. The bitstreams are applied to a pair of switching amplifiers, and the bitstreams can be combined again to reconstruct the original function. The method in accordance with the present disclosure limits the amount of input power necessary to achieve higher output power, lowers operating voltage and improves power amplifier efficiency.
摘要翻译： 公开了一种用于高密度脉冲密度调制的方法和系统。 根据本公开，使用互补的一对非线性函数将调制功能分为两个频带限制流。 更具体地，一个比特流定义包含原始功能的峰值，而另一个比特流包含原始比特流的软限幅版本。 比特流被施加到一对开关放大器，并且可以再次组合比特流以重建原始功能。 根据本公开的方法限制了实现更高输出功率所需的输入功率量，降低了工作电压并提高了功率放大器的效率。
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公开(公告)号：US20150042403A1
公开(公告)日：2015-02-12
申请号：US14380823
申请日：2013-01-18
申请人： LSI Corporation
CPC分类号： H03F3/2171 , H03F3/193 , H03F3/217 , H03F3/2175 , H03F3/2178 , H03F3/245 , H03F2200/451 , H03F2203/21136 , H03F2203/21178
摘要： A voltage-switched class-S amplifier circuit includes an output stage configured to receive at least one control signal and operative to generate an output signal as a function of the at least one control signal. The amplifier circuit further includes a driver circuit coupled with the output stage. The driver circuit is configured to receive an input bit stream signal and is operative to generate the control signal as a function of the input bit stream signal in such a manner that a common mode component is eliminated from the control signal.
摘要翻译： 电压开关类S放大器电路包括输出级，其被配置为接收至少一个控制信号并且可操作以产生作为至少一个控制信号的函数的输出信号。 放大器电路还包括与输出级耦合的驱动器电路。 驱动器电路被配置为接收输入比特流信号，并且可操作以以从控制信号中消除共模分量的方式产生作为输入比特流信号的函数的控制信号。
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7.发明申请RADIO FREQUENCY COMPOSITE CLASS-S POWER AMPLIFIER HAVING DISCRETE POWER CONTROL 有权具有离散功率控制的无线电频率复合类S功率放大器公开(公告)号：US20150015329A1
公开(公告)日：2015-01-15
申请号：US14380915
申请日：2013-02-02
申请人： LSI Corporation
CPC分类号： H03F3/2171 , H03F1/0222 , H03F1/0277 , H03F1/3241 , H03F1/56 , H03F3/193 , H03F3/195 , H03F3/211 , H03F3/217 , H03F3/2175 , H03F3/245 , H03F3/45179 , H03F3/72 , H03F2200/336 , H03F2200/387 , H03F2200/408 , H03F2200/411 , H03F2200/451 , H03F2200/504 , H03F2201/3212 , H03F2201/3233 , H03F2203/45638 , H03F2203/45731 , H03F2203/7215 , H03F2203/7236
摘要： A composite amplifier providing digitally selectable amplification includes a plurality of channels and a combiner. Each of the channels includes a digitally controllable selector, a Class-S power amplifier, and bandpass filter. The digitally controllable selector selectively couples a digital bitstream to the amplifier. The amplifier receives the digital bitstream and provides an amplified signal. The bandpass filter generates a filtered signal as a function of the amplified signal. The combiner couples filtered signals provided by the channels to form a composite output signal. A method of providing digitally selectable amplification includes steps of: selectively coupling a digital bitstream to a plurality of channels in the amplifier; amplifying the digital bitstream to provide an amplified signal associated with a corresponding one of the channels; filtering amplified signals associated with the channels to provide corresponding filtered signals; and combining the filtered signals to generate a composite output signal.
摘要翻译： 提供数字可选择放大的复合放大器包括多个通道和组合器。 每个通道包括数字可控选择器，S类功率放大器和带通滤波器。 数字可控选择器选择性地将数字比特流耦合到放大器。 放大器接收数字比特流并提供放大信号。 带通滤波器产生作为放大信号的函数的滤波信号。 组合器将由信道提供的滤波信号耦合以形成复合输出信号。 提供数字可选择放大的方法包括以下步骤：选择性地将数字比特流耦合到放大器中的多个通道; 放大数字比特流以提供与相应的一个信道相关联的放大信号; 滤波与信道相关联的放大信号以提供对应的滤波信号; 以及组合经滤波的信号以产生复合输出信号。
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公开(公告)号：US08908798B2
公开(公告)日：2014-12-09
申请号：US13729231
申请日：2012-12-28
申请人： LSI Corporation
发明人： Ross S. Wilson , Said E. Abdelli , Peter Kiss , Kameran Azadet , Donald R. Laturell , James F. MacDonald
摘要： The invention may be embodied in radio frequency power amplifier (RF-PA) predriver circuits employing a hybrid analog/digital RF architecture including a resynchronizing digital-to-analog convertor to drive an efficient high-power output stage suitable for driving standard high power amplifier (HPA) output devices. The hybrid analog/digital RF architecture retains the advantages of high digital content integration found in conventional Class-S architecture, while relaxing the performance requirements on the output transistors and on the bitstream generator. The resulting predriver circuit combines the VLSI integration benefits of digital designs with the extensibility to arbitrary output power levels characteristic of analog designs. The hybrid analog/digital driving circuit is well suited for use with analog and Class-S HPAs used in wireless communication systems, such as the Doherty type HPA.
摘要翻译： 本发明可以体现在使用混合模拟/数字RF架构的射频功率放大器（RF-PA）预驱动电路中，所述混合模拟/数字RF架构包括重新同步的数模转换器，以驱动适于驱动标准高功率放大器的高效大功率输出级 （HPA）输出设备。 混合模拟/数字RF架构保留了传统S类架构中高数字内容集成的优点，同时放松了对输出晶体管和位流发生器的性能要求。 所得到的预驱动电路将数字设计的VLSI集成优势与模拟设计特有的任意输出功率电平的可扩展性相结合。 混合模拟/数字驱动电路非常适用于无线通信系统中使用的模拟和Class-S HPA，例如Doherty型HPA。
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公开(公告)号：US20140119427A1
公开(公告)日：2014-05-01
申请号：US13663534
申请日：2012-10-30
申请人： LSI CORPORATION
发明人： Donald R. Laturell , Said E. Abdelli , Peter Kiss , James F. MacDonald , Ross S. Wilson , Kameran Azadet
IPC分类号： H04L27/04
摘要： A method and system for high density pulse density modulation is disclosed. In accordance with the present disclosure, a modulation function is split in to two band limited streams using a complementary pair of non-linear functions. More specifically, one bitstream definition contains the peaks of the original function while the other bitstream contains a soft clipping version of the original bitstream. The bitstreams are applied to a pair of switching amplifiers, and the bitstreams can be combined again to reconstruct the original function. The method in accordance with the present disclosure limits the amount of input power necessary to achieve higher output power, lowers operating voltage and improves power amplifier efficiency.
摘要翻译： 公开了一种用于高密度脉冲密度调制的方法和系统。 根据本公开，使用互补的一对非线性函数将调制功能分为两个频带限制流。 更具体地，一个比特流定义包含原始功能的峰值，而另一个比特流包含原始比特流的软限幅版本。 比特流被施加到一对开关放大器，并且可以再次组合比特流以重建原始功能。 根据本公开的方法限制了实现更高输出功率所需的输入功率量，降低了工作电压并提高了功率放大器的效率。
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10.发明授权Radio frequency composite Class-S power amplifier having discrete power control 有权具有离散功率控制的射频复合S类功率放大器公开(公告)号：US09325284B2
公开(公告)日：2016-04-26
申请号：US14380915
申请日：2013-02-02
申请人： LSI Corporation
IPC分类号： H03F3/217 , H03F1/02 , H03F1/32 , H03F1/56 , H03F3/195 , H03F3/21 , H03F3/24 , H03F3/45 , H03F3/72 , H03F3/193
CPC分类号： H03F3/2171 , H03F1/0222 , H03F1/0277 , H03F1/3241 , H03F1/56 , H03F3/193 , H03F3/195 , H03F3/211 , H03F3/217 , H03F3/2175 , H03F3/245 , H03F3/45179 , H03F3/72 , H03F2200/336 , H03F2200/387 , H03F2200/408 , H03F2200/411 , H03F2200/451 , H03F2200/504 , H03F2201/3212 , H03F2201/3233 , H03F2203/45638 , H03F2203/45731 , H03F2203/7215 , H03F2203/7236
摘要： A composite amplifier providing digitally selectable amplification includes a plurality of channels and a combiner. Each of the channels includes a digitally controllable selector, a Class-S power amplifier, and bandpass filter. The digitally controllable selector selectively couples a digital bitstream to the amplifier. The amplifier receives the digital bitstream and provides an amplified signal. The bandpass filter generates a filtered signal as a function of the amplified signal. The combiner couples filtered signals provided by the channels to form a composite output signal. A method of providing digitally selectable amplification includes steps of: selectively coupling a digital bitstream to a plurality of channels in the amplifier; amplifying the digital bitstream to provide an amplified signal associated with a corresponding one of the channels; filtering amplified signals associated with the channels to provide corresponding filtered signals; and combining the filtered signals to generate a composite output signal.
摘要翻译： 提供数字可选择放大的复合放大器包括多个通道和组合器。 每个通道包括数字可控选择器，S类功率放大器和带通滤波器。 数字可控选择器选择性地将数字比特流耦合到放大器。 放大器接收数字比特流并提供放大的信号。 带通滤波器产生作为放大信号的函数的滤波信号。 组合器将由信道提供的滤波信号耦合以形成复合输出信号。 提供数字可选择放大的方法包括以下步骤：选择性地将数字比特流耦合到放大器中的多个通道; 放大数字比特流以提供与相应的一个信道相关联的放大信号; 滤波与信道相关联的放大信号以提供对应的滤波信号; 以及组合经滤波的信号以产生复合输出信号。
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