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    Multiple mode RF power converter
    41.
    发明授权
    Multiple mode RF power converter 有权

    公开(公告)号：US09377797B2

    公开(公告)日：2016-06-28

    申请号：US14702192

    申请日：2015-05-01

    Applicant: RF Micro Devices, Inc.

    Inventor： Michael R. Kay ,  Nadim Khlat

    IPC: G05F1/00 ,  G05F1/46

    CPC classification number: G05F1/468 ,  H02M1/10 ,  H02M2001/0067 ,  H03F1/0211 ,  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.

    DIRECT CURRENT (DC) VOLTAGE CONVERTER OPERATION MODE TRANSITION
    44.
    发明申请
    DIRECT CURRENT (DC) VOLTAGE CONVERTER OPERATION MODE TRANSITION 审中-公开
    直流电流（DC）电压转换器运行模式转换

    公开(公告)号：US20160056705A1

    公开(公告)日：2016-02-25

    申请号：US14831080

    申请日：2015-08-20

    Applicant: RF Micro Devices, Inc.

    Inventor： Mohammad Ahsanul Adeeb ,  Philippe Gorisse ,  Nadim Khlat ,  Michael R. Kay

    IPC: H02M1/00 ,  H02M3/158

    CPC classification number: H02M3/1582 ,  H02M3/156

    Abstract: A direct current (DC) voltage converter configured to transition between operation modes is disclosed. A voltage selection circuitry is provided in a DC voltage conversion circuit to control a buck-boost converter that generates a DC output voltage. As opposed to conventional methods of switching the buck-boost converter between a buck mode and a boost mode based on a single switching threshold, the voltage selection circuitry is configured to switch the buck-boost converter between the buck mode and the boost mode based on multiple voltage thresholds. Each of the multiple voltage thresholds defines a respective range for the DC output voltage. By controlling the buck-boost converter based on multiple voltage thresholds, it is possible to provide a smoother transition between the buck mode and the boost mode, thus reducing voltage errors in the DC output voltage and improving reliability of the DC voltage conversion circuit.

    Abstract translation: 公开了一种配置成在操作模式之间转换的直流（DC）电压转换器。 在DC电压转换电路中提供电压选择电路以控制产生DC输出电压的降压 - 升压转换器。 与基于单个切换阈值在降压模式和升压模式之间切换降压 - 升压转换器的常规方法相反，电压选择电路被配置为基于降压模式和升压模式之间的降压 - 升压转换器 多电压阈值。 多个电压阈值中的每一个定义了直流输出电压的相应范围。 通过基于多个电压阈值控制降压 - 升压转换器，可以在降压模式和升压模式之间提供更平滑的转换，从而减小直流输出电压中的电压误差并提高直流电压转换电路的可靠性。

    Power source multiplexer
    46.
    发明授权
    Power source multiplexer 有权
    电源多路复用器

    公开(公告)号：US08981839B2

    公开(公告)日：2015-03-17

    申请号：US13914888

    申请日：2013-06-11

    Applicant: RF Micro Devices, Inc.

    Inventor： Michael R. Kay ,  Manbir Singh Nag ,  Philippe Gorisse

    IPC: G05F1/10 ,  H03K17/687

    CPC classification number: H03K17/687 ,  G06F1/263 ,  Y10T307/50

    Abstract: Circuitry, which includes a first switching transistor element having a first gate, a second switching transistor element having a second gate, a third switching transistor element having a third gate, and a fourth switching transistor element having a fourth gate, is disclosed. The first switching transistor element and the third switching transistor element are coupled in series between a first power source and a first downstream circuit. The second switching transistor element and the fourth switching transistor element are coupled in series between a second power source and the first downstream circuit. A voltage swing at the first gate and a voltage swing at the second gate are both about equal to a first voltage magnitude. A voltage swing at the third gate and a voltage swing at the fourth gate are both about equal to a second voltage magnitude.

    Abstract translation: 公开了一种电路，其包括具有第一栅极的第一开关晶体管元件，具有第二栅极的第二开关晶体管元件，具有第三栅极的第三开关晶体管元件和具有第四栅极的第四开关晶体管元件。 第一开关晶体管元件和第三开关晶体管元件串联在第一电源和第一下游电路之间。 第二开关晶体管元件和第四开关晶体管元件串联耦合在第二电源和第一下游电路之间。 第一栅极处的电压摆动和第二栅极处的电压摆动都大致等于第一电压幅度。 第三栅极处的电压摆动和第四栅极处的电压摆动大约等于第二电压幅度。

    EXPANDED RANGE DC-DC CONVERTER
    47.
    发明申请
    EXPANDED RANGE DC-DC CONVERTER 有权
    扩展范围DC-DC转换器

    公开(公告)号：US20150048891A1

    公开(公告)日：2015-02-19

    申请号：US14458341

    申请日：2014-08-13

    Applicant: RF Micro Devices, Inc.

    Inventor： Ashraf Rozek ,  Michael R. Kay

    IPC: H02M3/158 ,  H03F3/19 ,  H03F3/21 ,  H03F1/02

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

    Abstract: 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.

    Abstract translation: 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。

    Inductance based parallel amplifier phase compensation
    48.
    发明授权
    Inductance based parallel amplifier phase compensation 有权
    基于电感的并联放大器相位补偿

    公开(公告)号：US08878606B2

    公开(公告)日：2014-11-04

    申请号：US13661552

    申请日：2012-10-26

    Applicant: RF Micro Devices, Inc.

    Inventor： Nadim Khlat ,  Michael R. Kay ,  Philippe Gorisse

    IPC: H03G3/20 ,  H02M3/156 ,  H02M1/15 ,  H02M1/00

    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。

    BI-DIRECTIONAL POWER SUPPLY SIGNAL BASED LINEAR AMPLIFIER
    49.
    发明申请
    BI-DIRECTIONAL POWER SUPPLY SIGNAL BASED LINEAR AMPLIFIER 有权
    基于双向电源信号的线性放大器

    公开(公告)号：US20140225674A1

    公开(公告)日：2014-08-14

    申请号：US14176611

    申请日：2014-02-10

    Applicant: RF Micro Devices, Inc.

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

    IPC: H03F1/02 ,  H03F3/21 ,  H03F3/19

    CPC classification number: H03F1/0222 ,  H03F1/0227 ,  H03F3/19 ,  H03F3/21 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/451

    Abstract: Circuitry, which includes a linear amplifier, is disclosed. The linear amplifier has a linear amplifier output and includes an input amplifier stage and an output amplifier stage. The output amplifier stage at least partially provides an envelope power supply voltage to a radio frequency (RF) power amplifier (PA) via an envelope power supply output using a selected one of a group of linear amplifier power supply signals. The group of linear amplifier power supply signals includes at least a first bi-directional power supply signal. The input amplifier stage selects the one of the group of linear amplifier power supply signals based on the envelope power supply voltage and a setpoint of the envelope power supply voltage.

    Abstract translation: 公开了包括线性放大器的电路。 线性放大器具有线性放大器输出，并包括输入放大级和输出放大级。 输出放大器级至少部分地通过使用一组线性放大器电源信号中选定的一个的包络电源输出向射频（RF）功率放大器（PA）提供包络电源电压。 线性放大器电源信号组至少包括第一双向电源信号。 输入放大器级基于包络电源电压和包络电源电压的设定点来选择一组线性放大器电源信号。

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