公开(公告)号：WO2006115717A2

公开(公告)日：2006-11-02

申请号：PCT/US2006/012619

申请日：2006-04-04

Applicant: RF MICRO DEVICES, INC.

Inventor： KHLAT, Nadim ,  BAUDER, Ruediger

IPC: H04L25/49

CPC classification number: H04L27/362 ,  H03F1/0205 ,  H03F3/24 ,  H03F2200/102 ,  H03F2200/451 ,  H03G3/3042 ,  H04W52/52

Abstract: Power control circuitry is provided for controlling an output power of a transmitter of a mobile terminal operating according to a continuous time transmit scheme such as Wideband Code Division Multiple Access (WCDMA). Transmit circuitry processes a quadrature baseband signal to provide a radio frequency transmit signal. The radio frequency transmit signal is coupled to the power control circuitry via a coupler and processed to provide a feedback amplitude signal. The power control circuitry operates to remove an amplitude modulation component from the feedback signal using a reference amplitude signal generated from the quadrature baseband signal, thereby providing a measured gain signal of the transmit circuitry. Based on the measured gain signal and a target output power, the power control circuitry operates to control a gain of the transmit circuitry such that the output power of the transmit circuitry is within a predetermined range about the target output power.

Abstract translation: 提供功率控制电路，用于控制根据诸如宽带码分多址（WCDMA）的连续时间发射方案操作的移动终端的发射机的输出功率。 发射电路处理正交基带信号以提供射频发射信号。 射频发射信号通过耦合器耦合到功率控制电路，并被处理以提供反馈振幅信号。 功率控制电路使用从正交基带信号产生的参考振幅信号，从反馈信号中去除幅度调制分量，从而提供测量的发射电路的增益信号。 基于测量的增益信号和目标输出功率，功率控制电路操作以控制发射电路的增益，使得发射电路的输出功率在关于目标输出功率的预定范围内。

公开(公告)号：WO2014116933A2

公开(公告)日：2014-07-31

申请号：PCT/US2014/012927

申请日：2014-01-24

Applicant: RF MICRO DEVICES, INC

Inventor： KHLAT, Nadim ,  KAY, Michael R. ,  NAG, Manbir Singh

IPC: H03F3/189

CPC classification number: H03F1/0227 ,  H02M2001/0045 ,  H03F1/0266 ,  H03F3/195 ,  H03F3/24 ,  H03F2200/375 ,  H03F2200/432 ,  H03F2200/451 ,  H03F2200/471 ,  H03F2200/555

Abstract: A parallel amplifier and a parallel amplifier power supply are disclosed according to one embodiment of the present disclosure. The parallel amplifier power supply provides a parallel amplifier power supply signal, which is adjustable on a communications slot-to-communications slot basis. During envelope tracking, the parallel amplifier regulates an envelope power supply voltage based on the parallel amplifier power supply signal. The parallel amplifier and an offset capacitance voltage control loop are disclosed according to an alternate embodiment of the present disclosure. The parallel amplifier has a parallel amplifier output, which is coupled to an envelope tracking power supply output via an offset capacitive element. The offset capacitive element has an offset capacitive voltage. The offset capacitance voltage control loop regulates the offset capacitive voltage, which is adjustable on a communications slot-to-communications slot basis.

Abstract translation: 根据本公开的一个实施例公开了一种并行放大器和并联放大器电源。 并行放大器电源提供并行放大器电源信号，该信号可在通信时隙到通信时隙的基础上进行调整。 在包络跟踪期间，并行放大器基于并行放大器电源信号来调节包络电源电压。 根据本公开的替代实施例公开了并联放大器和偏移电容电压控制回路。 并联放大器有一个并联放大器输出，它通过偏置电容元件与包络跟踪电源输出相连。 偏移电容元件具有偏移电容电压。 偏移电容电压控制环路调节偏移电容电压，可在通信插槽对通信时隙的基础上进行调节。

公开(公告)号：WO2014018861A1

公开(公告)日：2014-01-30

申请号：PCT/US2013/052277

申请日：2013-07-26

Applicant: RF MICRO DEVICES, INC.

Inventor： KHLAT, Nadim

IPC: H03F1/02

CPC classification number: H03H21/0021 ,  H03F1/0227 ,  H03F3/195 ,  H03F3/245 ,  H03F2200/432 ,  H03F2200/555 ,  H03H7/0107 ,  H03H7/0153 ,  H03H2007/013

Abstract: A parallel amplifier (14), a switching supply (12), and a radio frequency (RF) notch filter (18) are disclosed. The parallel amplifier has a parallel amplifier output, such that the switching supply is coupled to the parallel amplifier output. Further, the RF notch filter is coupled between the parallel amplifier output and a ground. The RF notch filter has a selectable notch frequency, which is based on an RF duplex frequency.

Abstract translation: 公开了并行放大器（14），开关电源（12）和射频（RF）陷波滤波器（18）。 并联放大器具有并联放大器输出，使得开关电源耦合到并联放大器输出。 此外，RF陷波滤波器耦合在并行放大器输出和地之间。 射频陷波滤波器具有可选的陷波频率，该频率基于射频双工频率。

公开(公告)号：WO2012151594A2

公开(公告)日：2012-11-08

申请号：PCT/US2012/036858

申请日：2012-05-07

Applicant: RF MICRO DEVICES, INC. ,  KHLAT, Nadim ,  KAY, Michael, R. ,  GORISSE, Philippe ,  NGO, Christopher, Truong

Inventor： KHLAT, Nadim ,  KAY, Michael, R. ,  GORISSE, Philippe ,  NGO, Christopher, Truong

IPC: H03F1/32 ,  H03F1/02 ,  H03F3/195 ,  H03F3/24 ,  H04B17/00 ,  H03G3/00 ,  H03G3/30 ,  H03F3/217

CPC classification number: H03F3/217 ,  H03F1/0216 ,  H03F1/0233 ,  H03F1/0238

公开(公告)号：WO2012047738A1

公开(公告)日：2012-04-12

申请号：PCT/US2011/054106

申请日：2011-09-29

Applicant: RF MICRO DEVICES, INC.

Inventor： KHLAT, Nadim

IPC: H02M3/07

CPC classification number: H02M3/07 ,  H02M2001/009 ,  Y10T307/406

Abstract: The detailed description described embodiments of highly efficient power management systems configurable to simultaneously generate various output voltage levels for different components, sub-assemblies, and devices of electronic devices, sub-systems, and systems. In particular, the described embodiments include power management systems that substantially reduce or eliminate the need for inductors, large numbers of capacitors, and complex switching techniques to transform an available voltage level from a system power source, such as a battery, to more desirable power supply voltages. Some described embodiments include a charge pump that uses only two flying capacitors to simultaneously generate multiple supply outputs, where each of the multiple supply outputs may provide either the same or a different output voltage level. The described embodiments also include efficient power management systems that flexibly provide highly accurate voltage levels that are substantially insensitive to the voltage level provided by a system power source, such as a battery.

Abstract translation: 详细描述描述了高效率电力管理系统的实施例，其可配置为同时为电子设备，子系统和系统的不同组件，子组件和设备生成各种输出电压电平。 特别地，所描述的实施例包括功率管理系统，其基本上减少或消除对电感器，大量电容器的需要，以及将来自诸如电池的系统电源的可用电压电平转换为更理想电力的复杂开关技术 电源电压。 一些描述的实施例包括仅使用两个飞行电容器同时产生多个电源输出的电荷泵，其中多个电源输出中的每一个可以提供相同或不同的输出电压电平。 所描述的实施例还包括有效的电力管理系统，其灵活地提供对由诸如电池的系统电源提供的电压电平基本上不敏感的高度准确的电压电平。

公开(公告)号：WO2014062902A1

公开(公告)日：2014-04-24

申请号：PCT/US2013/065403

申请日：2013-10-17

Applicant: RF MICRO DEVICES, INC

Inventor： KHLAT, Nadim ,  KAY, Michael R. ,  ADEEB, Mohammad Ahsanul

IPC: H03F1/02 ,  H03F3/24 ,  H03F3/189 ,  H04B1/04

CPC classification number: G05F1/46 ,  H03F1/0211 ,  H03F1/0227 ,  H03F1/3223 ,  H03F3/189 ,  H03F3/24 ,  H03F2200/102 ,  H03F2200/432 ,  H04B2001/0441

Abstract: An envelope tracking power supply (26) and an offset capacitive element (CO) are disclosed. The offset capacitive element (CO) is coupled between a switching output and an analog output of the envelope tracking power supply (26), which operates in one of an envelope tracking mode, a transition mode, and an average power tracking mode. During the envelope tracking mode, the envelope tracking power supply (26) provides an envelope power supply signal using both the switching output and the analog output. During the transition mode, the envelope tracking power supply (26) drives the offset capacitive element (CO) from a first voltage to a second voltage, such that during a transition from the envelope tracking mode to the transition mode, the offset capacitive element (CO) has the first voltage, and during a transition from the transition mode to the average power tracking mode, the offset capacitive element (CO) has the second voltage.

Abstract translation: 公开了一种包络跟踪电源（26）和偏置电容元件（CO）。 偏移电容元件（CO）耦合在包络跟踪电源（26）的开关输出和模拟输出之间，其以包络跟踪模式，转换模式和平均功率跟踪模式之一工作。 在包络跟踪模式期间，包络跟踪电源（26）使用开关输出和模拟输出两者提供包络电源信号。 在转换模式期间，包络跟踪电源（26）将偏移电容元件（CO）从第一电压驱动到第二电压，使得在从包络跟踪模式转换到转换模式期间，偏移电容元件 CO）具有第一电压，并且在从转换模式到平均功率跟踪模式的转变期间，偏移电容元件（CO）具有第二电压。

公开(公告)号：WO2013033700A1

公开(公告)日：2013-03-07

申请号：PCT/US2012/053654

申请日：2012-09-04

Applicant: RF MICRO DEVICES, INC.

Inventor： KHLAT, Nadim ,  KAY, Michael R. ,  GORISSE, Philippe

IPC: H03F1/32 ,  H03F1/02 ,  H03F3/195 ,  H03F3/24 ,  H04B17/00 ,  H03G3/00 ,  H03G3/30

CPC classification number: H03G1/00 ,  H03F1/0227

Abstract: An envelope tracking power supply and transmitter control circuitry are disclosed. The transmitter control circuitry receives a first envelope power supply control signal and a second envelope power supply control signal. The envelope tracking power supply operates in one of a group of operating modes, which includes a first operating mode and a second operating mode. During both the first operating mode and the second operating mode, a first envelope power supply signal is provided to a driver stage based on the first envelope power supply control signal. During the first operating mode, a second envelope power supply signal is provided to a final stage based on the first envelope power supply control signal. However, during the second operating mode, the second envelope power supply signal is provided to the final stage based on the second envelope power supply control signal.

Abstract translation: 公开了一种包络跟踪电源和发射机控制电路。 发射机控制电路接收第一包络电源控制信号和第二包络电源控制信号。 信封跟踪电源以包括第一操作模式和第二操作模式的一组操作模式中的一种操作。 在第一操作模式和第二操作模式期间，基于第一包络电源控制信号将第一包络电源信号提供给驱动器级。 在第一操作模式期间，第二包络电源信号基于第一包络电源控制信号提供到最后级。 然而，在第二操作模式期间，第二包络电源信号基于第二包络电源控制信号提供到最后级。

公开(公告)号：WO2013012787A2

公开(公告)日：2013-01-24

申请号：PCT/US2012/046887

申请日：2012-07-16

Applicant: RF MICRO DEVICES, INC.

Inventor： KHLAT, Nadim ,  KAY, Michael, R.

IPC: H03F1/32

CPC classification number: H04B1/0475 ,  H03F1/0227 ,  H03F1/305

Abstract: Radio frequency (RF) transmitter circuitry, which includes an RF power amplifier (PA) and an envelope tracking power supply, is disclosed. The RF PA receives and amplifies an RF input signal to provide an RF transmit signal using an envelope power supply signal. The envelope tracking power supply provides the envelope power supply signal, which has switching ripple. Further, the envelope tracking power supply operates in either a normal switching ripple mode or a modified switching ripple mode, such that during the normal switching ripple mode, the envelope power supply signal has normal switching ripple, and during the modified switching ripple mode, the envelope power supply signal has modified switching ripple. When the modified switching ripple is required, the envelope tracking power supply operates in the modified switching ripple mode.

Abstract translation: 公开了包括RF功率放大器（PA）和包络跟踪电源的射频（RF）发射机电路。 RF PA接收并放大RF输入信号，以使用包络电源信号提供RF发射信号。 信封跟踪电源提供具有开关纹波的信封电源信号。 此外，包络跟踪电源以正常开关纹波模式或修改的开关纹波模式工作，使得在正常开关纹波模式期间，包络电源信号具有正常的开关纹波，并且在修改的开关纹波模式期间， 信号电源信号改变了开关纹波。 当需要修改的开关纹波时，包络跟踪电源以修改的开关纹波模式运行。

公开(公告)号：WO2012109227A3

公开(公告)日：2012-08-16

申请号：PCT/US2012/024124

申请日：2012-02-07

Applicant: RF MICRO DEVICES, INC.

Inventor： KHLAT, Nadim ,  HORLANDER, Karl, F.

IPC: H03F1/02

Abstract: An open loop envelope tracking system calibration technique and circuitry are proposed. A radio frequency power amplifier receives a modulated signal. An envelope tracker power converter generates a modulated power amplifier supply voltage for the radio frequency power amplifier based on a control signal derived from the modulated signal. A first output power and a second output power of the radio frequency power amplifier are measured when the control signal is respectively delayed by a first delay period and a second delay period. A sensitivity of the output power of the radio frequency power amplifier is near a maximum near the first delay period and the second delay period. The first delay period and/or the second delay period are adjusted until the first output power substantially equals the second output power. The first delay period and the second delay period are used to obtain a calibrated fine tuning delay offset.

公开(公告)号：WO2012079031A1

公开(公告)日：2012-06-14

申请号：PCT/US2011/064255

申请日：2011-12-09

Applicant: RF MICRO DEVICES, INC.

Inventor： KHLAT, Nadim ,  KAY, Michael, R. ,  GORISSE, Philippe

IPC: H03F3/217

CPC classification number: H03F1/0227 ,  H03F3/217

Abstract: 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 V RAMP 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.

Abstract translation: 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。