中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

232 records (took 0.041 seconds)

    Extracting clock information from a serial communications bus for use in RF communications circuitry
    121.
    发明授权
    Extracting clock information from a serial communications bus for use in RF communications circuitry 有权
    从串行通信总线提取时钟信息，用于RF通信电路

    公开(公告)号：US08774735B2

    公开(公告)日：2014-07-08

    申请号：US13937307

    申请日：2013-07-09

    Applicant: RF Micro Devices, Inc.

    Inventor： Dharma Reddy Kadam ,  Christopher Truong Ngo ,  Nadim Khlat

    IPC: H04B1/02

    CPC classification number: H04L7/04 ,  G06F13/385 ,  H04J3/0685

    Abstract: The present disclosure relates to RF front-end (RFFE) circuitry that includes multiple RFFE circuits, each of which may be provided by a separate integrated circuit (IC), front-end module, or both. As such, the RFFE circuits may be connected to one another using an RFFE serial communications bus. Further, one or more of the RFFE circuits may need an accurate clock source for analog-to-digital conversion (ADC), digital-to-analog conversion (DAC), calibration, sensor measurements, or the like. Instead of including an integral clock source circuit or receiving a separate external clock signal, an RFFE circuit may extract clock information from the RFFE serial communications bus to provide one or more clock signals. The clock information may be associated with one or more serial communications commands via the RFFE serial communications bus, may be associated with alternate functionality of the RFFE serial communications bus, or both.

    Abstract translation: 本公开涉及包括多个RFFE电路的RF前端（RFFE）电路，每个RFFE电路可以由单独的集成电路（IC），前端模块或两者提供。 因此，RFFE电路可以使用RFFE串行通信总线彼此连接。 此外，一个或多个RFFE电路可能需要用于模数转换（ADC），数模转换（DAC），校准，传感器测量等的精确时钟源。 RFFE电路不是包含集成时钟源电路或者接收单独的外部时钟信号，而是可以从RFFE串行通信总线提取时钟信息以提供一个或多个时钟信号。 时钟信息可以经由RFFE串行通信总线与一个或多个串行通信命令相关联，可以与RFFE串行通信总线或两者的备用功能相关联。

    TRANSITIONING FROM ENVELOPE TRACKING TO AVERAGE POWER TRACKING
    123.
    发明申请
    TRANSITIONING FROM ENVELOPE TRACKING TO AVERAGE POWER TRACKING 有权
    从包装跟踪到平均功率跟踪的转换

    公开(公告)号：US20140111178A1

    公开(公告)日：2014-04-24

    申请号：US14056292

    申请日：2013-10-17

    Applicant: RF Micro Devices, Inc.

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

    IPC: G05F1/46

    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 and an offset capacitive element are disclosed. The offset capacitive element is coupled between a switching output and an analog output of the envelope tracking power supply, 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 provides an envelope power supply signal using both the switching output and the analog output. During the transition mode, the envelope tracking power supply drives a voltage across the offset capacitive element 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 has the first voltage, and during a transition from the transition mode to the average power tracking mode, the offset capacitive element has the second voltage.

    Abstract translation: 公开了一种包络跟踪电源和偏移电容元件。 偏移电容元件耦合在包络跟踪电源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，包络跟踪电源将偏移电容元件上的电压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，偏移电容元件具有第二电压。

    OPEN LOOP RIPPLE CANCELLATION CIRCUIT IN A DC-DC CONVERTER
    124.
    发明申请
    OPEN LOOP RIPPLE CANCELLATION CIRCUIT IN A DC-DC CONVERTER 有权
    DC-DC转换器中的开环纹波消除电路

    公开(公告)号：US20140077787A1

    公开(公告)日：2014-03-20

    申请号：US14027416

    申请日：2013-09-16

    Applicant: RF Micro Devices, Inc.

    Inventor： Philippe Gorisse ,  Nadim Khlat ,  Christopher Truong Ngo

    IPC: H02M1/14

    CPC classification number: H02M1/14 ,  H02M1/15 ,  H02M2001/0045 ,  H03F1/0211 ,  H03F1/0261

    Abstract: A direct current (DC)-DC converter, which includes an open loop ripple cancellation circuit, a switching supply, and a parallel amplifier, is disclosed. During a calibration mode, the parallel amplifier provides a parallel amplifier output current to regulate a power supply output voltage based on a calibration setpoint. The switching supply drives the parallel amplifier output current toward zero using a switching control signal, such that during the calibration mode, an estimate of a current gain is based on the switching control signal. Further, during the calibration mode, the open loop ripple cancellation circuit is disabled. During a normal operation mode, the open loop ripple cancellation circuit provides a ripple cancellation current, which is based on the estimate of the current gain.

    Abstract translation: 公开了一种直流（DC）-DC转换器，其包括开环纹波消除电路，开关电源和并联放大器。 在校准模式期间，并行放大器提供并行放大器输出电流，以调节基于校准设定值的电源输出电压。 开关电源使用开关控制信号将平行放大器输出电流驱动到零，使得在校准模式期间，电流增益的估计基于开关控制信号。 此外，在校准模式期间，开环纹波消除电路被禁用。 在正常工作模式下，开环纹波消除电路提供纹波消除电流，其基于当前增益的估计。

    MULTIPLE POWER SUPPLY INPUT PARALLEL AMPLIFIER BASED ENVELOPE TRACKING
    125.
    发明申请
    MULTIPLE POWER SUPPLY INPUT PARALLEL AMPLIFIER BASED ENVELOPE TRACKING 有权
    多电源输入并联放大器的包络跟踪

    公开(公告)号：US20140062590A1

    公开(公告)日：2014-03-06

    申请号：US14072225

    申请日：2013-11-05

    Applicant: RF Micro Devices, Inc.

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

    IPC: H03F1/02

    CPC classification number: H03F1/02 ,  H02M3/07 ,  H02M3/158 ,  H03F1/0227 ,  H03F3/189 ,  H03F3/24 ,  H03F2200/432 ,  H03G3/3042

    Abstract: A switch mode power supply converter and a parallel amplifier are disclosed. The switch mode power supply converter is coupled to a modulated power supply output and the parallel amplifier has a parallel amplifier output coupled to the modulated power supply output. Further, the parallel amplifier has a group of output stages, such that each output stage is directly coupled to the parallel amplifier output and each output stage receives a separate supply voltage.

    Abstract translation: 公开了一种开关电源转换器和并联放大器。 开关模式电源转换器耦合到调制电源输出，并联放大器具有耦合到调制电源输出的并行放大器输出。 此外，并联放大器具有一组输出级，使得每个输出级直接耦合到并行放大器输出，并且每个输出级接收单独的电源电压。

    RADIO FRONT END HAVING REDUCED DIVERSITY SWITCH LINEARITY REQUIREMENT
    126.
    发明申请
    RADIO FRONT END HAVING REDUCED DIVERSITY SWITCH LINEARITY REQUIREMENT 有权
    具有降低多样性切换线性要求的无线电前端

    公开(公告)号：US20140024322A1

    公开(公告)日：2014-01-23

    申请号：US13942778

    申请日：2013-07-16

    Applicant: RF Micro Devices, Inc.

    Inventor： Nadim Khlat

    IPC: H04B7/04

    CPC classification number: H04B7/0404 ,  H04B1/006 ,  H04B7/0602 ,  H04B7/0802

    Abstract: A radio front end that includes a diversity switch module adapted to route diversity receive (RX) signals to transceiver circuitry from diversity antenna switch circuitry coupled to at least one diversity antenna port is disclosed. The radio front end further includes ultrahigh band (UHB) switch circuitry adapted to route UHB transmit (TX) signals from power amplifier and switch circuitry to a UHB antenna port and/or to at least one diversity antenna port. The UHB switch circuitry is also adapted to route UHB RX signals from the UHB antenna port and/or to at least one antenna port to the transceiver circuitry, wherein the UHB RX signals include band 7 (B7) wherein linearity of the UHB switch circuitry is greater than linearity of the diversity switch module.

    Abstract translation: 公开了一种无线电前端，其包括适于将分集接收（RX）信号从耦合到至少一个分集天线端口的分集天线切换电路的收发器电路路由到分集交换模块。 无线电前端还包括适于将UHB发射（TX）信号从功率放大器和开关电路路由到UHB天线端口和/或至少一个分集天线端口的超高频（UHB）开关电路。 UHB开关电路还适于将UHB RX信号从UHB天线端口和/或至少一个天线端口路由到收发器电路，其中UHB RX信号包括带7（B7），其中UHB开关电路的线性度为 大于分集开关模块的线性度。

    DUAL PARALLEL AMPLIFIER BASED DC-DC CONVERTER
    127.
    发明申请
    DUAL PARALLEL AMPLIFIER BASED DC-DC CONVERTER 有权
    双路并联放大器基于DC-DC转换器

    公开(公告)号：US20130176075A1

    公开(公告)日：2013-07-11

    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: G05F1/46 ,  H03F1/02

    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。

    PHASE RECONFIGURABLE SWITCHING POWER SUPPLY
    129.
    发明申请
    PHASE RECONFIGURABLE SWITCHING POWER SUPPLY 有权
    相可重新切换电源

    公开(公告)号：US20130141072A1

    公开(公告)日：2013-06-06

    申请号：US13689922

    申请日：2012-11-30

    Applicant: RF MICRO DEVICES, INC.

    Inventor： Nadim Khlat ,  Michael R. Kay

    IPC: G05F3/02

    CPC classification number: G05F3/02 ,  H02M1/14 ,  H02M3/155 ,  H02M2003/1586

    Abstract: Embodiments of circuitry, which includes power supply switching circuitry and a first inductive element, are disclosed. The power supply switching circuitry has a first switching output and a second switching output. The first inductive element is coupled between the first switching output and a power supply output. The power supply switching circuitry operates in one of a first operating mode and a second operating mode. During the first operating mode, the first switching output is voltage compatible with the second switching output. During the second operating mode, the first switching output is allowed to be voltage incompatible with the second switching output.

    Abstract translation: 公开了包括电源开关电路和第一电感元件的电路的实施例。 电源开关电路具有第一开关输出和第二开关输出。 第一电感元件耦合在第一开关输出和电源输出之间。 电源开关电路以第一操作模式和第二操作模式中的一个操作。 在第一操作模式期间，第一开关输出与第二开关输出电压兼容。 在第二操作模式期间，允许第一开关输出与第二开关输出不兼容的电压。

    AVERAGE FREQUENCY CONTROL OF SWITCHER FOR ENVELOPE TRACKING
    130.
    发明申请
    AVERAGE FREQUENCY CONTROL OF SWITCHER FOR ENVELOPE TRACKING 有权
    用于信号跟踪的开关的平均频率控制

    公开(公告)号：US20130107769A1

    公开(公告)日：2013-05-02

    申请号：US13661164

    申请日：2012-10-26

    Applicant: RF Micro Devices, Inc.

    Inventor： Nadim Khlat ,  Christopher Truong Ngo

    IPC: H04L27/06 ,  H04J11/00

    CPC classification number: H03F1/0227 ,  H02M3/156 ,  H03F3/19 ,  H03F2200/108 ,  H03F2200/351

    Abstract: This disclosure relates generally to radio frequency (RF) switching converters and RF amplification devices that use RF switching converters. For example, an RF switching converter may include a switching circuit that receives a power source voltage and a switching controller that receives a target average frequency value identifying a target average frequency. The switching circuit is switchable so as to generate a pulsed output voltage from the power source voltage. The switching controller switches the switching circuit such that the pulsed output voltage has an average pulse frequency. The switching controller also detects that the average pulse frequency of the pulsed output voltage during a time period differs from the target average frequency, and reduces a difference between the average pulse frequency and the target average frequency. In this manner, the effects of manufacturing variations and operational variations on the average pulse frequency can be eliminated, or at least diminished.

    Abstract translation: 本公开一般涉及使用RF开关转换器的射频（RF）开关转换器和RF放大器件。 例如，RF开关转换器可以包括接收电源电压的开关电路和接收识别目标平均频率的目标平均频率值的开关控制器。 开关电路是可切换的，以便从电源电压产生脉冲输出电压。 开关控制器切换开关电路，使得脉冲输出电压具有平均脉冲频率。 切换控制器还检测在一段时间内脉冲输出电压的平均脉冲频率与目标平均频率不同，并且减小了平均脉冲频率和目标平均频率之间的差。 以这种方式，可以消除或至少减少制造变化和操作变化对平均脉冲频率的影响。

Patent Agency Ranking