中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

69 records (took 0.042 seconds)

    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。

    Smooth transitioning buck-boost DC-DC converter
    40.
    发明授权
    Smooth transitioning buck-boost DC-DC converter 有权

    公开(公告)号：US09614443B2

    公开(公告)日：2017-04-04

    申请号：US14808119

    申请日：2015-07-24

    Applicant: RF Micro Devices, Inc.

    Inventor： Michael R. Kay ,  Manbir Singh Nag

    IPC: G05F1/24 ,  H02M3/158

    CPC classification number: H02M3/1582 ,  H02M3/07 ,  H02M3/1584 ,  H02M2001/0003 ,  H02M2001/0045 ,  H02M2001/4291 ,  H02M2003/1586 ,  H03F3/38

    Abstract: A buck-boost DC-DC converter, which includes converter control circuitry, converter switching circuitry, and a first inductive element, is disclosed. The converter control circuitry provides a buck mode timing signal and a boost mode timing signal. The converter switching circuitry provides a switching output signal. During a buck mode of the buck-boost DC-DC converter, when a buck pulse-width of the switching output signal is less than a buck pulse-width threshold, the buck pulse-width is limited based on both the buck mode timing signal and the boost mode timing signal. During a boost mode of the buck-boost DC-DC converter, when a boost pulse-width of the switching output signal is less than a boost pulse-width threshold, the boost pulse-width is limited based on both the buck mode timing signal and the boost mode timing signal. The first inductive element receives and filters the switching output signal to provide a converter output signal.

Patent Agency Ranking