公开(公告)号：WO2013063387A2

公开(公告)日：2013-05-02

申请号：PCT/US2012/062110

申请日：2012-10-26

Applicant: RF MICRO DEVICES, INC.

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

IPC: G05F1/46 ,  H03G1/00

CPC classification number: H02M3/156 ,  H02M1/15 ,  H02M2001/0045 ,  H02M2001/0048 ,  H03F1/0216 ,  H03F3/2171 ,  Y02B70/1491

Abstract: A direct current (DC)-DC converter, which includes a parallel amplifier and a switching supply, is disclosed. The switching supply includes switching circuitry, a first inductive element, and a second inductive element. The parallel amplifier has a feedback input and a parallel amplifier output. The switching circuitry has a switching circuitry output. The first inductive element is coupled between the switching circuitry output and the feedback input. The second inductive element is coupled between the feedback input and the parallel amplifier output.

Abstract translation: 公开了一种包括并联放大器和开关电源的直流（DC）-DC转换器。 开关电源包括开关电路，第一电感元件和第二电感元件。 并联放大器具有反馈输入和并行放大器输出。 开关电路具有开关电路输出。 第一电感元件耦合在开关电路输出和反馈输入之间。 第二电感元件耦合在反馈输入端和并行放大器输出端之间。

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：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。