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    SWITCHING SUPPLY DELAY COMPENSATION
    1.
    发明申请
    SWITCHING SUPPLY DELAY COMPENSATION 有权
    切换电源延迟补偿

    公开(公告)号：US20160365836A1

    公开(公告)日：2016-12-15

    申请号：US15055119

    申请日：2016-02-26

    申请人： RF Micro Devices, Inc.

    发明人： Nadim Khlat ,  Michael R. Kay

    IPC分类号： H03F1/02 ,  H03F3/19 ,  H03F3/24 ,  H03K5/1536

    CPC分类号： H03K5/1536 ,  H03F1/0222 ,  H03F1/0266 ,  H03F3/19 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/391 ,  H03F2200/432 ,  H03F2200/451 ,  H03F2200/462

    摘要： Circuitry, which includes a parallel amplifier and a switching supply, is disclosed. The parallel amplifier regulates a power supply output voltage based on a power supply control signal and provides a current sense signal, which is representative of a parallel amplifier output current from the parallel amplifier. The switching supply is coupled to the parallel amplifier. The switching supply provides a switching output voltage and makes an early determination of the switching output voltage using the current sense signal and the power supply control signal to at least partially compensate for delay in the switching supply. Additionally, the switching supply drives the parallel amplifier output current toward zero using the switching output voltage to increase efficiency.

    摘要翻译： 公开了包括并联放大器和开关电源的电路。 并联放大器基于电源控制信号调节电源输出电压，并提供电流检测信号，其代表来自并行放大器的并行放大器输出电流。 开关电源耦合到并联放大器。 开关电源提供开关输出电压，并且使用电流检测信号和电源控制信号来早期确定开关输出电压，以至少部分地补偿开关电源中的延迟。 此外，开关电源使用开关输出电压将并行放大器输出电流驱动到零，以提高效率。

    Expanded range DC-DC converter
    3.
    发明授权
    Expanded range DC-DC converter 有权
    扩展范围DC-DC转换器

    公开(公告)号：US09374005B2

    公开(公告)日：2016-06-21

    申请号：US14458341

    申请日：2014-08-13

    申请人： RF Micro Devices, Inc.

    发明人： Ashraf Rozek ,  Michael R. Kay

    IPC分类号： H03G3/20 ,  H02M3/158 ,  H03F1/02 ,  H03F3/19 ,  H03F3/21 ,  H02M3/07 ,  H03F3/00 ,  H03F3/195 ,  H03F3/24 ,  H02M1/00

    CPC分类号： H02M3/158 ,  H02M3/07 ,  H02M2001/007 ,  H03F1/0227 ,  H03F3/005 ,  H03F3/19 ,  H03F3/195 ,  H03F3/21 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/451

    摘要： A DC-DC converter, which provides a converter output voltage using a DC source voltage, is disclosed. The DC-DC converter includes converter control circuitry and a boosting charge pump. The converter control circuitry selects one of a first boost operating mode, a second boost operating mode, and a boost disabled mode based on the DC source voltage. During the boost disabled mode, the boosting charge pump presents a high impedance at a charge pump output of the boosting charge pump. Otherwise, the boosting charge pump provides a charge pump output voltage. During the first boost operating mode, a nominal value of the charge pump output voltage is equal to about one and one-half times the DC source voltage. During the second boost operating mode, a nominal value of the charge pump output voltage is equal to about two times the DC source voltage.

    摘要翻译： 公开了一种使用DC源电压提供转换器输出电压的DC-DC转换器。 DC-DC转换器包括转换器控制电路和升压电荷泵。 转换器控制电路基于直流电源电压选择第一升压操作模式，第二升压操作模式和升压禁止模式中的一个。 在升压禁用模式期间，升压电荷泵在增压电荷泵的电荷泵输出处呈现高阻抗。 否则，升压电荷泵提供电荷泵输出电压。 在第一升压操作模式期间，电荷泵输出电压的标称值等于直流电源电压的大约一倍。 在第二升压操作模式期间，电荷泵输出电压的标称值等于直流电源电压的大约两倍。

    ENVELOPE TRACKING WITH REDUCED CIRCUIT AREA AND POWER CONSUMPTION
    4.
    发明申请
    ENVELOPE TRACKING WITH REDUCED CIRCUIT AREA AND POWER CONSUMPTION 有权
    具有减少电路面积和功耗的包络跟踪

    公开(公告)号：US20160164551A1

    公开(公告)日：2016-06-09

    申请号：US14959954

    申请日：2015-12-04

    申请人： RF Micro Devices, Inc.

    发明人： Nadim Khlat ,  Michael R. Kay

    IPC分类号： H04B1/04 ,  H03F1/02 ,  H03F3/21 ,  H03F3/19

    CPC分类号： H03F3/19 ,  H03F1/0227 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/451

    摘要： 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.

    摘要翻译： 本公开涉及具有减小的电路面积和功耗的包络跟踪。 在一个实施例中，包络功率转换器包括被配置为接收电源电压并且基于开关控制信号提供输出的开关功率转换器。 保持电感耦合在开关电源转换器和外壳电源输出节点之间。 偏置电容器耦合在封装电源输出节点和控制节点之间。 响应于目标包络电源输出电压，控制电路被配置为产生开关控制信号和控制电压，以将包络电源信号保持在目标电压电平。 控制电路被配置为产生开关控制信号和控制电压，使得电源电压由开关功率转换器提供给保持电感器，并且偏移电容器被充电到目标电平而不改变包络电源信号的电压。

    Average power tracking controller
    5.
    发明授权
    Average power tracking controller 有权
    平均功率跟踪控制器

    公开(公告)号：US09280163B2

    公开(公告)日：2016-03-08

    申请号：US13747725

    申请日：2013-01-23

    申请人： RF Micro Devices, Inc.

    发明人： Michael R. Kay ,  Nadim Khlat

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

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

    摘要： 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.

    摘要翻译： 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。

    Power management architecture for modulated and constant supply operation
    6.
    发明授权
    Power management architecture for modulated and constant supply operation 有权
    电源管理架构，用于调制和恒定供电操作

    公开(公告)号：US09246460B2

    公开(公告)日：2016-01-26

    申请号：US14072140

    申请日：2013-11-05

    申请人： RF Micro Devices, Inc.

    发明人： Nadim Khlat ,  Michael R. Kay ,  Phillippe Gorisse ,  Christopher Truong Ngo

    IPC分类号： H03G3/00 ,  H03F3/04 ,  H03G3/30 ,  H02M3/07 ,  H02M3/158 ,  H03F1/02 ,  H03F3/24 ,  H03F3/45 ,  H02M1/00

    CPC分类号： H03G3/3042 ,  H02M3/07 ,  H02M3/158 ,  H02M2001/0032 ,  H03F1/0227 ,  H03F3/24 ,  H03F3/45663 ,  Y02B70/16

    摘要： A power management system, which includes a parallel amplifier circuit and a switch mode power supply converter, is disclosed. The switch mode power supply converter cooperatively operates with the parallel amplifier circuit to form the power management system. The power management system operates in one of a high power modulation mode, a medium power modulation mode, and a low power average power tracking mode. Further, during the high power modulation mode and the medium power modulation mode, the power management system controls a power amplifier supply voltage to a radio frequency power amplifier to provide envelope tracking. During the low power average power tracking mode, the power management system controls the power amplifier supply voltage to the radio frequency power amplifier to provide average power tracking.

    摘要翻译： 公开了一种电源管理系统，其包括并联放大器电路和开关模式电源转换器。 开关模式电源转换器与并行放大器电路协同工作，形成电源管理系统。 电源管理系统以高功率调制模式，中等功率调制模式和低功率平均功率跟踪模式之一工作。 此外，在高功率调制模式和中等功率调制模式期间，电力管理系统控制向射频功率放大器的功率放大器电源电压以提供包络跟踪。 在低功率平均功率跟踪模式下，电源管理系统控制功率放大器对射频功率放大器的电源电压，以提供平均功率跟踪。

    DUAL INSTANTANEOUS ENVELOPE TRACKING
    8.
    发明申请
    DUAL INSTANTANEOUS ENVELOPE TRACKING 有权
    双重即时包裹跟踪

    公开(公告)号：US20140306769A1

    公开(公告)日：2014-10-16

    申请号：US14254215

    申请日：2014-04-16

    申请人： RF Micro Devices, Inc.

    发明人： Nadim Khlat ,  Baker Scott ,  Michael R. Kay

    IPC分类号： H03F1/02 ,  H03F3/19

    CPC分类号： H03F1/0227 ,  H03F1/0266 ,  H03F3/19 ,  H03F3/195 ,  H03F3/245 ,  H03F2200/432 ,  H03F2200/451 ,  H03F2200/555

    摘要： 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.

    摘要翻译： 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。

    POWER MANAGEMENT/POWER AMPLIFIER OPERATION UNDER DYNAMIC BATTERY DROPS
    9.
    发明申请
    POWER MANAGEMENT/POWER AMPLIFIER OPERATION UNDER DYNAMIC BATTERY DROPS 有权
    电源管理/功率放大器在动态电池下的运行

    公开(公告)号：US20140266429A1

    公开(公告)日：2014-09-18

    申请号：US14209581

    申请日：2014-03-13

    申请人： RF Micro Devices, Inc.

    发明人： Nadim Khlat ,  Jean-Blaise Pierres ,  Michael R. Kay

    IPC分类号： H03F1/02

    CPC分类号： H03F1/02 ,  H03F1/0211 ,  H03F1/0261 ,  H03F2203/45192

    摘要： In one embodiment, a digital internal amplified voltage of power management circuitry is forced to an input threshold voltage upon a determination that a set of emergency conditions is satisfied, and is set to an input minimum battery voltage upon a determination that the set of emergency conditions is not satisfied. The emergency conditions may include determining that a battery voltage is less than a threshold voltage and determining that an input minimum battery voltage is less than an input threshold voltage.

    摘要翻译： 在一个实施例中，当确定一组紧急情况被满足时，将功率管理电路的数字内部放大电压强制为输入阈值电压，并且在确定该组紧急情况时被设置为输入最小电池电压 不满意 紧急情况可以包括确定电池电压小于阈值电压并且确定输入的最小电池电压小于输入阈值电压。