公开(公告)号：US20140097895A1

公开(公告)日：2014-04-10

申请号：US14101770

申请日：2013-12-10

申请人： RF Micro Devices, Inc.

发明人： Nadim Khlat ,  Michael R. Kay ,  Philippe Gorisse

IPC分类号： H03F3/217

CPC分类号： H03F3/217 ,  H02M3/07 ,  H02M2001/0025 ,  H03F1/0244 ,  H03F1/025 ,  H03F1/0277 ,  H03F1/42 ,  H03F3/195 ,  H03F3/245 ,  H03F3/3022 ,  H03F3/45475 ,  H03F3/505 ,  H03F3/72 ,  H03F2200/102 ,  H03F2200/204 ,  H03F2200/36 ,  H03F2200/375 ,  H03F2200/451 ,  H03F2200/555 ,  H03F2200/78 ,  H03F2203/45526 ,  H03F2203/45544 ,  H03F2203/45594 ,  H03F2203/45694 ,  H03F2203/45712 ,  H03F2203/45718 ,  H03F2203/7221

摘要： A switch mode power supply converter and a feedback delay compensation circuit are disclosed. The switch mode power supply converter has a switching voltage output and provides a switching voltage at the switching voltage output, such that a target voltage for a power amplifier supply voltage at a power amplifier supply output is based on the switching voltage. Further, the switching voltage is based on an early indication of a change of the target voltage. The feedback delay compensation circuit provides the early indication of the change of the target voltage.

摘要翻译： 公开了开关模式电源转换器和反馈延迟补偿电路。 开关模式电源转换器具有开关电压输出，并且在开关电压输出端提供开关电压，使得功率放大器电源输出端的功率放大器电源电压的目标电压基于开关电压。 此外，开关电压基于目标电压的变化的早期指示。 反馈延迟补偿电路提供目标电压变化的早期指示。

公开(公告)号：US20140009200A1

公开(公告)日：2014-01-09

申请号：US14022940

申请日：2013-09-10

申请人： RF Micro Devices, Inc.

发明人： Michael R. Kay ,  Philippe Gorisse ,  Nadim Khlat

IPC分类号： H03K5/14

CPC分类号： H03K5/14 ,  H02M3/07 ,  H03F1/0244 ,  H03F1/025 ,  H03F1/0277 ,  H03F1/42 ,  H03F3/195 ,  H03F3/245 ,  H03F3/3022 ,  H03F3/45475 ,  H03F3/505 ,  H03F3/72 ,  H03F2200/102 ,  H03F2200/204 ,  H03F2200/36 ,  H03F2200/375 ,  H03F2200/451 ,  H03F2200/555 ,  H03F2200/78 ,  H03F2203/45526 ,  H03F2203/45544 ,  H03F2203/45594 ,  H03F2203/45694 ,  H03F2203/45712 ,  H03F2203/45718 ,  H03F2203/7221

摘要： Programmable delay circuitry, which includes an input buffer circuit and variable delay circuitry, is disclosed. The variable delay circuitry includes an input stage, a correction start voltage circuit, and a variable delay capacitor. The input buffer circuit is coupled to the input stage, the correction start voltage circuit is coupled to the input stage, and the variable delay capacitor is coupled to the input stage. The programmable delay circuitry is configured to provide a fixed time delay and a variable time delay.

摘要翻译： 公开了包括输入缓冲电路和可变延迟电路的可编程延迟电路。 可变延迟电路包括输入级，校正开始电压电路和可变延迟电容器。 输入缓冲电路耦合到输入级，校正开始电压电路耦合到输入级，可变延迟电容耦合到输入级。 可编程延迟电路被配置为提供固定的时间延迟和可变的时间延迟。

公开(公告)号：US20120313701A1

公开(公告)日：2012-12-13

申请号：US13316229

申请日：2011-12-09

申请人： Nadim Khlat ,  Michael R. Kay ,  Philippe Gorisse

发明人： Nadim Khlat ,  Michael R. Kay ,  Philippe Gorisse

IPC分类号： H03G1/00

CPC分类号： H03F1/025 ,  H02M3/07 ,  H03F1/0244 ,  H03F1/0277 ,  H03F1/42 ,  H03F3/195 ,  H03F3/245 ,  H03F3/3022 ,  H03F3/45475 ,  H03F3/505 ,  H03F3/72 ,  H03F2200/102 ,  H03F2200/204 ,  H03F2200/36 ,  H03F2200/375 ,  H03F2200/451 ,  H03F2200/555 ,  H03F2200/78 ,  H03F2203/45526 ,  H03F2203/45544 ,  H03F2203/45594 ,  H03F2203/45694 ,  H03F2203/45712 ,  H03F2203/45718 ,  H03F2203/7221

摘要： Embodiments disclosed in the detailed description relate to a pseudo-envelope follower power management system including a parallel amplifier and a switch mode power supply converter cooperatively coupled to generate a power supply voltage at a power supply output coupled to a linear RF power amplifier. The parallel amplifier output is in communication with the power amplifier supply output. The parallel amplifier governs operation of the switch mode power supply converter and regulates the power amplifier supply voltage base on a VRAMP signal. The parallel amplifier circuit includes an open loop high frequency compensation assist circuit that generates a high frequency ripple compensation current based on an estimate of the high frequency ripple currents contained in a ripple current of the power inductor. The high frequency ripple compensation current is injected into the parallel amplifier circuit output to cancel out high frequency ripple currents at the power amplifier supply output.

摘要翻译： 在详细描述中公开的实施例涉及一种伪包络跟随器功率管理系统，其包括协同耦合以在耦合到线性RF功率放大器的电源输出处产生电源电压的并联放大器和开关模式电源转换器。 并联放大器输出与功率放大器电源输出通信。 并联放大器控制开关模式电源转换器的工作，并根据VRAMP信号调节功率放大器电源电压。 并联放大器电路包括开环高频补偿辅助电路，其基于包含在功率电感器的纹波电流中的高频纹波电流的估计来产生高频纹波补偿电流。 高频纹波补偿电流注入到并行放大器电路输出端，以消除功率放大器电源输出端的高频纹波电流。

公开(公告)号：US09385672B2

公开(公告)日：2016-07-05

申请号：US14553688

申请日：2014-11-25

申请人： QUALCOMM Incorporated

发明人： Rahul Karmaker

IPC分类号： H03F3/45 ,  H03F1/22

CPC分类号： H03F3/45645 ,  H03F1/086 ,  H03F1/223 ,  H03F1/42 ,  H03F3/19 ,  H03F3/245 ,  H03F3/45188 ,  H03F3/45475 ,  H03F2200/411 ,  H03F2200/451 ,  H03F2203/45051 ,  H03F2203/45062 ,  H03F2203/45066 ,  H03F2203/45116 ,  H03F2203/45151 ,  H03F2203/45156 ,  H03F2203/45404 ,  H03F2203/45422 ,  H03F2203/45631 ,  H03F2203/45718

摘要： A common-mode feedback module is disclosed for controlling feedback in an amplifier, such as a multi-stage amplifier. The common-mode feedback module may include a feedback input stage, a cascode stage, and a feedback output stage. The common-mode feedback module may provide feedback, such as negative feedback to the amplifier to extend a bandwidth of a frequency response and/or increase stability.

摘要翻译： 公开了一种用于控制诸如多级放大器之类的放大器中的反馈的共模反馈模块。 共模反馈模块可以包括反馈输入级，共源共栅级和反馈输出级。 共模反馈模块可以向放大器提供诸如负反馈的反馈以扩展频率响应的带宽和/或增加稳定性。

公开(公告)号：US20160149546A1

公开(公告)日：2016-05-26

申请号：US14553688

申请日：2014-11-25

申请人： QUALCOMM Incorporated

发明人： Rahul Karmaker

IPC分类号： H03F3/45 ,  H03F1/22

CPC分类号： H03F3/45645 ,  H03F1/086 ,  H03F1/223 ,  H03F1/42 ,  H03F3/19 ,  H03F3/245 ,  H03F3/45188 ,  H03F3/45475 ,  H03F2200/411 ,  H03F2200/451 ,  H03F2203/45051 ,  H03F2203/45062 ,  H03F2203/45066 ,  H03F2203/45116 ,  H03F2203/45151 ,  H03F2203/45156 ,  H03F2203/45404 ,  H03F2203/45422 ,  H03F2203/45631 ,  H03F2203/45718

摘要： A common-mode feedback module is disclosed for controlling feedback in an amplifier, such as a multi-stage amplifier. The common-mode feedback module may include a feedback input stage, a cascode stage, and a feedback output stage. The common-mode feedback module may provide feedback, such as negative feedback to the amplifier to extend a bandwidth of a frequency response and/or increase stability.

摘要翻译： 公开了一种用于控制诸如多级放大器之类的放大器中的反馈的共模反馈模块。 共模反馈模块可以包括反馈输入级，共源共栅级和反馈输出级。 共模反馈模块可以向放大器提供诸如负反馈的反馈以扩展频率响应的带宽和/或增加稳定性。

公开(公告)号：US20140009227A1

公开(公告)日：2014-01-09

申请号：US14022858

申请日：2013-09-10

申请人： RF Micro Devices, Inc.

发明人： Michael R. Kay ,  Nadim Khlat

IPC分类号： H03F1/02

CPC分类号： H03F1/02 ,  H02M3/07 ,  H03F1/0244 ,  H03F1/025 ,  H03F1/0277 ,  H03F1/42 ,  H03F3/195 ,  H03F3/245 ,  H03F3/3022 ,  H03F3/45475 ,  H03F3/505 ,  H03F3/72 ,  H03F2200/102 ,  H03F2200/204 ,  H03F2200/36 ,  H03F2200/375 ,  H03F2200/451 ,  H03F2200/555 ,  H03F2200/78 ,  H03F2203/45526 ,  H03F2203/45544 ,  H03F2203/45594 ,  H03F2203/45694 ,  H03F2203/45712 ,  H03F2203/45718 ,  H03F2203/7221

摘要： A switch mode power supply converter, a parallel amplifier, and a parallel amplifier output impedance compensation circuit are disclosed. The switch mode power supply converter provides a switching voltage and generates an estimated switching voltage output, which is indicative of the switching voltage. The parallel amplifier generates a power amplifier supply voltage at a power amplifier supply output based on a compensated VRAMP signal. The parallel amplifier output impedance compensation circuit provides the compensated VRAMP signal based on a combination of a VRAMP signal and a high frequency ripple compensation signal. The high frequency ripple compensation signal is based on a difference between the VRAMP signal and the estimated switching voltage output.

摘要翻译： 公开了开关模式电源转换器，并联放大器和并联放大器输出阻抗补偿电路。 开关模式电源转换器提供开关电压并产生表示开关电压的估计开关电压输出。 并联放大器基于经补偿的VRAMP信号在功率放大器电源输出端产生功率放大器电源电压。 并联放大器输出阻抗补偿电路根据VRAMP信号和高频纹波补偿信号的组合提供经补偿的VRAMP信号。 高频纹波补偿信号基于VRAMP信号与估计的开关电压输出之间的差值。

公开(公告)号：US20030112069A1

公开(公告)日：2003-06-19

申请号：US10016962

申请日：2001-12-14

发明人： Jong K. Kim ,  Elangovan Nainar ,  Michael P. Straub

IPC分类号： H03F003/45

CPC分类号： H03F3/45286 ,  H03F3/3008 ,  H03F2203/45304 ,  H03F2203/45496 ,  H03F2203/45508 ,  H03F2203/45644 ,  H03F2203/45718

摘要： A non-linear transconductance amplifier includes a differential input stage and a non-linear transconductance stage operatively coupled to the differential input stage. The differential input stage includes first and second inputs forming a non-inverting input and an inverting input, respectively, of the amplifier for receiving an input differential signal. The non-linear transconductance stage generates an output of the amplifier having a linear transconductance that is substantially zero when the input differential signal is within a predetermined range and a non-linear large transconductance when the input differential signal is outside the predetermined range. The amplifier provides improved response time to widely varying load conditions while possessing a low loop bandwidth. A threshold region where the output of the amplifier is substantially zero can be operatively adjusted and tightly controlled. Furthermore, the amplifier accomplishes these advantages without employing timing circuitry and without the necessary overhead and/or noise often associated with such timing circuitry.

摘要翻译： 非线性跨导放大器包括差分输入级和可操作地耦合到差分输入级的非线性跨导级。 差分输入级包括分别形成用于接收输入差分信号的放大器的非反相输入和反相输入的第一和第二输入。 非线性跨导级产生具有线性跨导的放大器的输出，当输入差分信号在预定范围之外时，当输入差分信号在预定范围内时非线性大跨导为非线性大跨导。 该放大器在广泛变化的负载条件下提供了更好的响应时间，同时拥有低环路带宽。 可以可操作地调节和严格控制放大器的输出基本为零的阈值区域。 此外，放大器实现了这些优点，而不需要使用定时电路，并且没有经常与这种定时电路相关联的必要的开销和/或噪声。

公开(公告)号：US09564858B2

公开(公告)日：2017-02-07

申请号：US15016970

申请日：2016-02-05

申请人： SOCIONEXT INC.

发明人： Takafumi Nasu ,  Shinichiro Uemura ,  Atsushi Ohara

IPC分类号： H03F3/04 ,  H01P7/00 ,  H03F1/02 ,  H03F3/191 ,  H03H5/00 ,  H03J5/02 ,  H03F1/32 ,  H03F3/45 ,  H03F3/193 ,  H03H11/04

CPC分类号： H03F1/0205 ,  H03F1/3211 ,  H03F3/191 ,  H03F3/193 ,  H03F3/45179 ,  H03F3/45475 ,  H03F2200/294 ,  H03F2200/451 ,  H03F2203/45394 ,  H03F2203/45631 ,  H03F2203/45634 ,  H03F2203/45638 ,  H03F2203/45644 ,  H03F2203/45658 ,  H03F2203/45688 ,  H03F2203/45694 ,  H03F2203/45696 ,  H03F2203/45712 ,  H03F2203/45714 ,  H03F2203/45718 ,  H03F2203/45726 ,  H03H5/00 ,  H03H11/04 ,  H03J5/02 ,  H03J2200/10

摘要： A parallel resonant circuit with excellent distortion and saturation characteristics is provided at low power consumption. A first power-supply voltage is applied to the parallel resonant circuit. In the parallel resonant circuit, a variable resistor includes one or more parallel-connected branches. Each of the branches includes a series circuit of a resistor and a MOS switch. A second power supply supplies power of control signals applied to respective gates of the MOS switches, and supplies back gate voltages to the MOS switches. A power-supply voltage of the second power supply is higher than the first power-supply voltage.

摘要翻译： 在低功耗下提供具有优异失真和饱和特性的并联谐振电路。 第一电源电压被施加到并联谐振电路。 在并联谐振电路中，可变电阻器包括一个或多个并联连接的分支。 每个分支包括电阻器和MOS开关的串联电路。 第二电源提供施加到MOS开关的各个门的控制信号的电源，并向MOS开关提供反向栅极电压。 第二电源的电源电压高于第一电源电压。

公开(公告)号：US09247496B2

公开(公告)日：2016-01-26

申请号：US14072120

申请日：2013-11-05

申请人： RF Micro Devices, Inc.

发明人： Nadim Khlat

IPC分类号： H03C1/02 ,  H04W52/02 ,  H03F1/02 ,  H02M3/07 ,  H03F1/42 ,  H03F3/195 ,  H03F3/24 ,  H03F3/30 ,  H03F3/45 ,  H03F3/50 ,  H03F3/72 ,  H03G3/30

CPC分类号： H04W52/0209 ,  H02M3/07 ,  H03F1/02 ,  H03F1/0244 ,  H03F1/025 ,  H03F1/0277 ,  H03F1/42 ,  H03F3/195 ,  H03F3/245 ,  H03F3/3022 ,  H03F3/45475 ,  H03F3/505 ,  H03F3/72 ,  H03F2200/102 ,  H03F2200/204 ,  H03F2200/36 ,  H03F2200/375 ,  H03F2200/451 ,  H03F2200/555 ,  H03F2200/78 ,  H03F2203/45526 ,  H03F2203/45544 ,  H03F2203/45594 ,  H03F2203/45694 ,  H03F2203/45712 ,  H03F2203/45718 ,  H03F2203/7221 ,  H03G3/3042 ,  Y02D70/00

摘要： Configuration-feedback circuitry and transceiver circuitry are disclosed. The configuration-feedback circuitry regulates an output power from a radio frequency power amplifier based on a difference between a target output power from the radio frequency power amplifier and a measured output power from the radio frequency power amplifier. The transceiver circuitry regulates a modulated power supply voltage, which is used by the radio frequency power amplifier to provide power for amplification, based on the difference between the target output power from the radio frequency power amplifier and the measured output power from the radio frequency power amplifier.

摘要翻译： 公开了配置反馈电路和收发器电路。 配置反馈电路基于来自射频功率放大器的目标输出功率与来自射频功率放大器的测量输出功率之间的差异来调节来自射频功率放大器的输出功率。 收发器电路基于射频功率放大器的目标输出功率与来自射频功率的测量输出功率之间的差异来调节由射频功率放大器用于提供放大功率的调制电源电压 放大器

公开(公告)号：US08981848B2

公开(公告)日：2015-03-17

申请号：US14022940

申请日：2013-09-10

申请人： RF Micro Devices, Inc.

发明人： Michael R. Kay ,  Philippe Gorisse ,  Nadim Khlat

IPC分类号： H03G3/10 ,  H03H11/26

CPC分类号： H03K5/14 ,  H02M3/07 ,  H03F1/0244 ,  H03F1/025 ,  H03F1/0277 ,  H03F1/42 ,  H03F3/195 ,  H03F3/245 ,  H03F3/3022 ,  H03F3/45475 ,  H03F3/505 ,  H03F3/72 ,  H03F2200/102 ,  H03F2200/204 ,  H03F2200/36 ,  H03F2200/375 ,  H03F2200/451 ,  H03F2200/555 ,  H03F2200/78 ,  H03F2203/45526 ,  H03F2203/45544 ,  H03F2203/45594 ,  H03F2203/45694 ,  H03F2203/45712 ,  H03F2203/45718 ,  H03F2203/7221

摘要： Programmable delay circuitry, which includes an input buffer circuit and variable delay circuitry, is disclosed. The variable delay circuitry includes an input stage, a correction start voltage circuit, and a variable delay capacitor. The input buffer circuit is coupled to the input stage, the correction start voltage circuit is coupled to the input stage, and the variable delay capacitor is coupled to the input stage. The programmable delay circuitry is configured to provide a fixed time delay and a variable time delay.

摘要翻译： 公开了包括输入缓冲电路和可变延迟电路的可编程延迟电路。 可变延迟电路包括输入级，校正开始电压电路和可变延迟电容器。 输入缓冲电路耦合到输入级，校正开始电压电路耦合到输入级，可变延迟电容耦合到输入级。 可编程延迟电路被配置为提供固定的时间延迟和可变的时间延迟。