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    Low noise switching voltage regulator
    1.
    发明授权
    Low noise switching voltage regulator 有权
    低噪声开关电压调节器

    公开(公告)号：US07421256B2

    公开(公告)日：2008-09-02

    申请号：US11345158

    申请日：2006-02-01

    申请人： Chris Levesque ,  Jaleh Komaili ,  Jason D. Millard

    发明人： Chris Levesque ,  Jaleh Komaili ,  Jason D. Millard

    IPC分类号： H01Q11/12

    CPC分类号： H03F1/0238 ,  H03F1/0227 ,  H03F2200/294 ,  H03F2200/372

    摘要： A low-noise switching voltage regulator for supplying a voltage to a radio frequency (RF) power amplifier is disclosed. In one embodiment, the invention can be conceptualized as a power amplifier supply circuit, comprising a pair of oppositely polarized semiconductor switches, and a data formatter configured to supply a data stream having a voltage transition on at least every other bit to each of the pair of oppositely polarized semiconductor switches.

    摘要翻译： 公开了一种用于向射频（RF）功率放大器提供电压的低噪声开关电压调节器。 在一个实施例中，本发明可以被概念化为功率放大器电源电路，其包括一对相反偏振的半导体开关，以及数据格式化器，被配置为将至少每隔一个位具有电压转换的数据流提供给该对中的每一个 的相反偏振半导体开关。

    Low noise switching voltage regulator
    2.
    发明授权
    Low noise switching voltage regulator 有权
    低噪声开关电压调节器

    公开(公告)号：US07058374B2

    公开(公告)日：2006-06-06

    申请号：US10270794

    申请日：2002-10-15

    申请人： Chris Levesque ,  Jaleh Komaili ,  Jason D. Millard

    发明人： Chris Levesque ,  Jaleh Komaili ,  Jason D. Millard

    IPC分类号： H01Q11/12 ,  H04B1/38

    CPC分类号： H03F1/0238 ,  H03F1/0227 ,  H03F2200/294 ,  H03F2200/372

    摘要： A low-noise switching voltage regulator for supplying a voltage to a radio frequency (RF) power amplifier is disclosed. In one embodiment, the invention can be conceptualized as a power amplifier supply circuit, comprising a pair of oppositely polarized semiconductor switches, and a data formatter configured to supply a data stream having a voltage transition on at least every other bit to each of the pair of oppositely polarized semiconductor switches.

    摘要翻译： 公开了一种用于向射频（RF）功率放大器提供电压的低噪声开关电压调节器。 在一个实施例中，本发明可以被概念化为功率放大器电源电路，其包括一对相反偏振的半导体开关，以及数据格式化器，被配置为将至少每隔一个位具有电压转换的数据流提供给该对中的每一个 的相反偏振半导体开关。

    Configurable 2-wire/3-wire serial communications interface
    5.
    发明授权
    Configurable 2-wire/3-wire serial communications interface 有权
    可配置2线/ 3线串行通信接口

    公开(公告)号：US08983410B2

    公开(公告)日：2015-03-17

    申请号：US13289302

    申请日：2011-11-04

    申请人： William David Southcombe ,  Christopher Truong Ngo ,  David E. Jones ,  Chris Levesque ,  Scott Yoder ,  Terry J. Stockert

    发明人： William David Southcombe ,  Christopher Truong Ngo ,  David E. Jones ,  Chris Levesque ,  Scott Yoder ,  Terry J. Stockert

    IPC分类号： H01Q11/12 ,  H04B1/04 ,  G06F13/42

    CPC分类号： G06F13/42 ,  G06F13/4291 ,  Y02D10/14 ,  Y02D10/151

    摘要： A configurable 2-wire/3-wire serial communications interface (C23SCI), which includes start-of-sequence (SOS) detection circuitry and sequence processing circuitry, is disclosed. When the SOS detection circuitry is coupled to a 2-wire serial communications bus, the SOS detection circuitry detects an SOS of a received sequence based on a serial data signal and a serial clock signal. When the SOS detection circuitry is coupled to a 3-wire serial communications bus, the SOS detection circuitry detects the SOS of the received sequence based on a chip select (CS) signal. In response to detecting the SOS, the SOS detection circuitry provides an SOS detection signal to the sequence processing circuitry, which initiates processing of the received sequence using the serial data signal and the serial clock signal. The received sequence is associated with one of multiple serial communications protocols.

    摘要翻译： 公开了一种可配置的2线/ 3线串行通信接口（C23SCI），其包括序列启动（SOS）检测电路和序列处理电路。 当SOS检测电路耦合到2线串行通信总线时，SOS检测电路基于串行数据信号和串行时钟信号检测接收序列的SOS。 当SOS检测电路耦合到3线串行通信总线时，SOS检测电路基于芯片选择（CS）信号检测接收到的序列的SOS。 响应于检测到SOS，SOS检测电路向序列处理电路提供SOS检测信号，其使用串行数据信号和串行时钟信号来启动接收到的序列的处理。 所接收的序列与多个串行通信协议之一相关联。

    SPLIT CURRENT CURRENT DIGITAL-TO-ANALOG CONVERTER (IDAC) FOR DYNAMIC DEVICE SWITCHING (DDS) OF AN RF PA STAGE
    8.
    发明申请
    SPLIT CURRENT CURRENT DIGITAL-TO-ANALOG CONVERTER (IDAC) FOR DYNAMIC DEVICE SWITCHING (DDS) OF AN RF PA STAGE 有权
    用于RF PA阶段的动态设备切换（DDS）的分流电流数字到模拟转换器（IDAC）

    公开(公告)号：US20120056679A1

    公开(公告)日：2012-03-08

    申请号：US13289379

    申请日：2011-11-04

    申请人： David E. Jones ,  William David Southcombe ,  Chris Levesque ,  Scott Yoder ,  Terry J. Stockert

    发明人： David E. Jones ,  William David Southcombe ,  Chris Levesque ,  Scott Yoder ,  Terry J. Stockert

    IPC分类号： H03F3/04

    CPC分类号： H03F1/0227 ,  H03F1/0277 ,  H03F3/195 ,  H03F3/211 ,  H03F3/245 ,  H03F2200/18 ,  H03F2200/336 ,  H04B2001/0416

    摘要： A split current current digital-to-analog converter (IDAC) and a radio frequency (RF) power amplifier (PA) stage are disclosed. The split current IDAC operates in a selected one of a group of DDS operating modes and provides a group of array bias signals based on the selected one of the group of DDS operating modes. Each of the group of array bias signals is a current signal. The RF PA stage includes a group of arrays of amplifying transistor elements. The RF PA stage biases at least one of the group of arrays of amplifying transistor elements based on the group of array bias signals. Further, the RF PA stage receives and amplifies an RF stage input signal to provide an RF stage output signal using at least one of the group of arrays of amplifying transistor elements that is biased.

    摘要翻译： 公开了分流电流数模转换器（IDAC）和射频（RF）功率放大器（PA）级。 分流电流IDAC以一组DDS操作模式中的所选择的一个操作，并且基于所选择的一组DDS操作模式提供一组阵列偏置信号。 阵列偏置信号组中的每一个是电流信号。 RF PA级包括一组放大晶体管元件阵列。 RF PA级基于阵列偏置信号组来偏置放大晶体管元件的一组阵列中的至少一个。 此外，RF PA级接收并放大RF级输入信号，以使用被偏置的放大晶体管元件的阵列组中的至少一个来提供RF级输出信号。

    LOOK-UP TABLE BASED CONFIGURATION OF A DC-DC CONVERTER
    9.
    发明申请
    LOOK-UP TABLE BASED CONFIGURATION OF A DC-DC CONVERTER 有权
    DC-DC转换器的基于表的配置

    公开(公告)号：US20120043956A1

    公开(公告)日：2012-02-23

    申请号：US13287672

    申请日：2011-11-02

    申请人： William David Southcombe ,  Chris Levesque ,  Jean-Christophe Berchtold ,  David E. Jones ,  Scott Yoder ,  Terry J. Stockert

    发明人： William David Southcombe ,  Chris Levesque ,  Jean-Christophe Berchtold ,  David E. Jones ,  Scott Yoder ,  Terry J. Stockert

    IPC分类号： G05F5/00

    CPC分类号： H02M3/157

    摘要： RF PA circuitry and a DC-DC converter, which includes an RF PA envelope power supply and DC-DC control circuitry, are disclosed. The PA envelope power supply provides an envelope power supply signal to the RF PA circuitry. The DC-DC control circuitry has a DC-DC look-up table (LUT) structure, which has at least a first DC-DC LUT. The DC-DC control circuitry uses DC-DC LUT index information as an index to the DC-DC LUT structure to obtain DC-DC converter operational control parameters. The DC-DC control circuitry then configures the PA envelope power supply using the DC-DC converter operational control parameters. Using the DC-DC LUT structure provides flexibility in configuring the DC-DC converter for different applications, for multiple static operating conditions, for multiple dynamic operating conditions, or any combination thereof.

    摘要翻译： 公开了RF PA电路和DC-DC转换器，其包括RF PA包络电源和DC-DC控制电路。 PA封装电源为RF PA电路提供信号电源信号。 DC-DC控制电路具有至少具有第一DC-DC LUT的DC-DC查找表（LUT）结构。 DC-DC控制电路使用DC-DC LUT索引信息作为DC-DC LUT结构的索引，以获得DC-DC转换器的操作控制参数。 DC-DC控制电路然后使用DC-DC转换器的操作控制参数配置PA封装电源。 使用DC-DC LUT结构为多种静态工作条件，多种动态工作条件或其任何组合提供了灵活的配置，适用于不同应用的DC-DC转换器。

    3D frequency dithering for DC-to-DC converters used in multi-mode cellular transmitters
    10.
    发明授权
    3D frequency dithering for DC-to-DC converters used in multi-mode cellular transmitters 有权
    用于多模式蜂窝发射机的DC-DC转换器的3D频率抖动

    公开(公告)号：US09166471B1

    公开(公告)日：2015-10-20

    申请号：US12723738

    申请日：2010-03-15

    申请人： Chris Levesque ,  James Retz ,  Christopher T. Ngo

    发明人： Chris Levesque ,  James Retz ,  Christopher T. Ngo

    IPC分类号： H02M1/44 ,  H02M3/157 ,  H03K7/08

    CPC分类号： H02M1/44 ,  H02M3/157 ,  H03K7/08

    摘要： A circuit and method is disclosed that dithers a switching frequency of a DC-to-DC converter which gets modulated onto an RF carrier such that switching noise is spread over a given bandwidth that is wider than a communications measurements bandwidth. The circuit includes a switching circuitry adapted to transfer energy from a source to a load using a switching signal having a series of switching cycles and a switching frequency. Also included is a control circuitry adapted to generate a pseudo-random value near a beginning of each of the series of switching cycles to determine a maximum switching frequency value based upon the pseudo-random value. The method includes adjusting the switching frequency of the switching signal incrementally from a fixed minimum switching frequency value to the maximum frequency value and vice versa as a function of time during each of the series of switching cycles of the switching circuit.

    摘要翻译： 公开了一种电路和方法，其将调制到RF载波上的DC-DC转换器的开关频率抖动，使得开关噪声在比通信测量带宽宽的给定带宽上扩展。 电路包括适于使用具有一系列开关周期和开关频率的开关信号将能量从源传输到负载的开关电路。 还包括一种控制电路，其适于在所述一系列切换周期中的每一个的开始附近产生伪随机值，以基于所述伪随机值来确定最大开关频率值。 该方法包括在开关电路的每个开关周期的每一个期间随着时间的推移将开关信号的开关频率从固定的最小开关频率值逐渐调整到最大频率值，反之亦然。