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    Voltage offset loop for a switching controller
    31.
    发明授权
    Voltage offset loop for a switching controller 有权
    开关控制器的电压偏置回路

    公开(公告)号：US09256234B2

    公开(公告)日：2016-02-09

    申请号：US13747749

    申请日：2013-01-23

    Applicant: RF Micro Devices, Inc.

    Inventor： Michael R. Kay ,  Nadim Khlat

    IPC: G05F1/46 ,  H02M1/14 ,  H03F1/02 ,  H03F1/26 ,  H03F3/24 ,  H04B15/00 ,  H02M1/00

    CPC classification number: G05F1/46 ,  H02M1/14 ,  H02M2001/0067 ,  H03F1/0227 ,  H03F1/26 ,  H03F3/24 ,  H03F2200/351 ,  H03F2200/451 ,  H03F2200/504 ,  H04B15/005

    Abstract: This disclosure relates to radio frequency (RF) power converters and methods of operating the same. In one embodiment, an RF power converter includes an RF switching converter, a low-drop out (LDO) regulation circuit, and an RF filter. The RF filter is coupled to receive a pulsed output voltage from the RF switching converter and a supply voltage from the LDO regulation circuit. The RF filter is operable to alternate between a first RF filter topology and a second RF filter topology. In the first RF filter topology, the RF filter is configured to convert the pulsed output voltage from a switching circuit into the supply voltage. The RF filter in the second RF filter topology is configured to filter the supply voltage from the LDO regulation circuit to reduce a ripple variation in a supply voltage level of the supply voltage. As such, the RF filter provides greater versatility.

    Abstract translation: 本公开涉及射频（RF）功率转换器及其操作方法。 在一个实施例中，RF功率转换器包括RF开关转换器，低压降（LDO）调节电路和RF滤波器。 RF滤波器被耦合以接收来自RF开关转换器的脉冲输出电压和来自LDO调节电路的电源电压。 RF滤波器可操作以在第一RF滤波器拓扑和第二RF滤波器拓扑之间交替。 在第一RF滤波器拓扑中，RF滤波器被配置为将来自开关电路的脉冲输出电压转换成电源电压。 第二RF滤波器拓扑中的RF滤波器被配置为对来自LDO调节电路的电源电压进行滤波，以减少电源电压的电源电压电平中的纹波变化。 因此，RF滤波器提供更大的通用性。

    Dual parallel amplifier based DC-DC converter
    33.
    发明授权
    Dual parallel amplifier based DC-DC converter 有权
    基于双路并联放大器的DC-DC转换器

    公开(公告)号：US09024688B2

    公开(公告)日：2015-05-05

    申请号：US13782142

    申请日：2013-03-01

    Applicant: RF Micro Devices, Inc.

    Inventor： Michael R. Kay ,  Andrew F. Folkmann ,  Nadim Khlat ,  Philippe Gorisse

    IPC: H03G3/20 ,  G05F1/46 ,  H03F1/02 ,  H03F3/195 ,  H03F3/24

    CPC classification number: G05F1/46 ,  H03F1/02 ,  H03F1/0266 ,  H03F3/195 ,  H03F3/24 ,  H03F2200/432 ,  H03F2200/555

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

    Abstract translation: 公开了一种直流（DC）-DC转换器，其包括开关电路，第一并联放大器和第二并联放大器。 开关电路具有开关电路输出。 第一并联放大器具有第一反馈输入和第一并联放大器输出。 第二并联放大器具有第二反馈输入和第二并联放大器输出。 第一电感元件耦合在开关电路输出和第一反馈输入之间。 第二感应元件耦合在第一反馈输入和第二反馈输入之间。

    MODULATED POWER SUPPLY SYSTEM AND METHOD WITH AUTOMATIC TRANSITION BETWEEN BUCK AND BOOST MODES
    34.
    发明申请
    MODULATED POWER SUPPLY SYSTEM AND METHOD WITH AUTOMATIC TRANSITION BETWEEN BUCK AND BOOST MODES 有权
    调节电源系统及其自动转换方式与BUCK和BOOST模式之间

    公开(公告)号：US20140139199A1

    公开(公告)日：2014-05-22

    申请号：US14082629

    申请日：2013-11-18

    Applicant: RF Micro Devices, Inc.

    Inventor： Nadim Khlat ,  Michael R. Kay

    IPC: H02M3/158

    CPC classification number: H02M3/1582 ,  H02M2001/0045 ,  H02M2001/007

    Abstract: The present disclosure provides a modulated power supply system having a switching converter with an output terminal for supplying modulated power to a load. The modulated power supply system also includes a controller adapted to transition the switching converter between a buck mode and a boost mode in response to a detection of at least one predetermined condition associated with the output terminal.

    Abstract translation: 本公开提供了一种具有开关转换器的调制电源系统，其具有用于向负载提供调制电力的输出端子。 调制电源系统还包括控制器，其适于响应于检测到与输出端子相关联的至少一个预定条件而在降压模式和升压模式之间转换开关转换器。

    AVERAGE POWER TRACKING CONTROLLER
    35.
    发明申请
    AVERAGE POWER TRACKING CONTROLLER 有权
    平均功率跟踪控制器

    公开(公告)号：US20130141068A1

    公开(公告)日：2013-06-06

    申请号：US13747725

    申请日：2013-01-23

    Applicant: RF Micro Devices, Inc.

    Inventor： Michael R. Kay ,  Nadim Khlat

    IPC: G05F1/46

    CPC classification number: G05F1/46 ,  H02M1/14 ,  H02M2001/0067 ,  H03F1/0227 ,  H03F1/26 ,  H03F3/24 ,  H03F2200/351 ,  H03F2200/451 ,  H03F2200/504 ,  H04B15/005

    Abstract: This disclosure relates to radio frequency (RF) power converters and methods of operating the same. In one embodiment, an RF power converter includes an RF switching converter, a low-drop out (LDO) regulation circuit, and an RF filter. The RF filter is coupled to receive a pulsed output voltage from the RF switching converter and a supply voltage from the LDO regulation circuit. The RF filter is operable to alternate between a first RF filter topology and a second RF filter topology. In the first RF filter topology, the RF filter is configured to convert the pulsed output voltage from a switching circuit into the supply voltage. The RF filter in the second RF filter topology is configured to filter the supply voltage from the LDO regulation circuit to reduce a ripple variation in a supply voltage level of the supply voltage. As such, the RF filter provides greater versatility.

    Abstract translation: 本公开涉及射频（RF）功率转换器及其操作方法。 在一个实施例中，RF功率转换器包括RF开关转换器，低压降（LDO）调节电路和RF滤波器。 RF滤波器被耦合以接收来自RF开关转换器的脉冲输出电压和来自LDO调节电路的电源电压。 RF滤波器可操作以在第一RF滤波器拓扑和第二RF滤波器拓扑之间交替。 在第一RF滤波器拓扑中，RF滤波器被配置为将来自开关电路的脉冲输出电压转换成电源电压。 第二RF滤波器拓扑中的RF滤波器被配置为对来自LDO调节电路的电源电压进行滤波，以减少电源电压的电源电压电平中的纹波变化。 因此，RF滤波器提供更大的通用性。

    Envelope tracking with reduced circuit area and power consumption
    36.
    发明授权
    Envelope tracking with reduced circuit area and power consumption 有权

    公开(公告)号：US09634620B2

    公开(公告)日：2017-04-25

    申请号：US14959954

    申请日：2015-12-04

    Applicant: RF Micro Devices, Inc.

    Inventor： Nadim Khlat ,  Michael R. Kay

    IPC: H04B1/04 ,  H03F1/02 ,  H03F3/19 ,  H03F3/24

    CPC classification number: H03F3/19 ,  H03F1/0227 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/451

    Abstract: The present disclosure relates to envelope tracking with reduced circuit area and power consumption. In one embodiment, an envelope power converter includes a switching power converter configured to receive a supply voltage and provide an output based on a switching control signal. A holding inductor is coupled between the switching power converter and envelope power supply output node. An offset capacitor is coupled between the envelope power supply output node and control node. In response to a target envelope power supply output voltage, a control circuit is configured to generate the switching control signal and a control voltage to maintain envelope power supply signal at target voltage level. The control circuit is configured to generate switching control signal and control voltage such that supply voltage is provided by switching power converter to holding inductor and offset capacitor is charged to target level without changing voltage of envelope power supply signal.

    Fast transition envelope tracking
    38.
    发明授权
    Fast transition envelope tracking 有权
    快速过渡包络跟踪

    公开(公告)号：US09516693B2

    公开(公告)日：2016-12-06

    申请号：US14838515

    申请日：2015-08-28

    Applicant: RF Micro Devices, Inc.

    Inventor： Nadim Khlat ,  Michael R. Kay

    IPC: H04B1/04 ,  H04W76/04

    CPC classification number: H04W76/27 ,  H03F1/0227 ,  H03F3/24 ,  H03F2200/102 ,  H04W52/0229 ,  H04W52/028 ,  Y02D70/142

    Abstract: Envelope power supply circuitry is operated in one of an off-state, a standby-state, and a transmit-state. In the standby-state, select components in envelope power converter circuitry in the envelope power supply circuitry are turned on in order to charge one or more inductive and/or capacitive elements therein to a maximum value necessary for supporting transmission of signals about a maximum output power. Accordingly, the envelope power supply circuitry is able to prepare to support transmission about any output power without knowing the output power ahead of time.

    Abstract translation: 信封电源电路以关闭状态，待机状态和发送状态之一工作。 在待机状态下，选择包络电源电路中的包络功率转换器电路中的组件被接通，以便将其中的一个或多个感应和/或电容元件充电到支持关于最大输出的信号传输所需的最大值 功率。 因此，信封电源电路能够准备支持关于任何输出功率的传输，而无需提前知道输出功率。

    Dual instantaneous envelope tracking
    40.
    发明授权
    Dual instantaneous envelope tracking 有权
    双重瞬时包络跟踪

    公开(公告)号：US09479118B2

    公开(公告)日：2016-10-25

    申请号：US14254215

    申请日：2014-04-16

    Applicant: RF Micro Devices, Inc.

    Inventor： Nadim Khlat ,  Baker Scott ,  Michael R. Kay

    IPC: H03G3/20 ,  H03F1/02 ,  H03F3/195 ,  H03F3/24

    CPC classification number: H03F1/0227 ,  H03F1/0266 ,  H03F3/19 ,  H03F3/195 ,  H03F3/245 ,  H03F2200/432 ,  H03F2200/451 ,  H03F2200/555

    Abstract: Power supply circuitry, which includes a parallel amplifier and a parallel amplifier power supply, is disclosed. The power supply circuitry operates in either an average power tracking mode or an envelope tracking mode. The parallel amplifier power supply provides a parallel amplifier power supply signal. The parallel amplifier regulates an envelope power supply voltage based on an envelope power supply control signal using the parallel amplifier power supply signal, which provides power for amplification. During the envelope tracking mode, the envelope power supply voltage at least partially tracks an envelope of an RF transmit signal and the parallel amplifier power supply signal at least partially tracks the envelope power supply control signal. During the average power tracking mode, the envelope power supply voltage does not track the envelope of the RF transmit signal.

    Abstract translation: 公开了包括并联放大器和并行放大器电源的电源电路。 电源电路在平均功率跟踪模式或包络跟踪模式下工作。 并联放大器电源提供并联放大器电源信号。 并联放大器基于包络电源控制信号，使用并联放大器电源信号来调节包络电源电压，该信号提供放大功率。 在包络跟踪模式期间，信封电源电压至少部分地跟踪RF发射信号的包络，并且并行放大器电源信号至少部分地跟踪包络电源控制信号。 在平均功率跟踪模式期间，包络电源电压不跟踪RF发射信号的包络。

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