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    ENVELOPE TRACKING SWITCHING HYBRID
    34.
    发明申请
    ENVELOPE TRACKING SWITCHING HYBRID 审中-公开
    安全跟踪开关混合

    公开(公告)号：WO2011115533A1

    公开(公告)日：2011-09-22

    申请号：PCT/SE2010/050292

    申请日：2010-03-16

    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) ,  JOHANSSON, Jan ,  APPELBERG, Mikael ,  ARONSSON, Anders

    Inventor： JOHANSSON, Jan ,  APPELBERG, Mikael ,  ARONSSON, Anders

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

    CPC classification number: H03F3/19 ,  H03F1/0211 ,  H03F1/0227 ,  H03F1/025 ,  H03F2200/102 ,  H03F2200/324 ,  H03F2200/451 ,  H03F2200/504 ,  H03F2200/507 ,  H03F2203/21193 ,  H03F2203/21196

    Abstract: A hybrid envelope tracking system capable of transition between a passive, switching, and/or active mode of operation with minimized parasitic oscillations is presented. The system may include a voltage control circuit comprising first and second node interfaces configured to receive first and second voltages respectively. An input node interface may be configured to receive an input envelope signal. An enablement node interference may be configured to receive an enablement signal, the enablement signal setting a transition between a passive or switching mode of operation to an active mode of operation. The circuit may further include a modulation transistor driven by a single floating operational amplifier. The modulation transistor may be used to modulate a supplied voltage with respect to the received envelope signal during the active operating regime.

    Abstract translation: 提出了能够在最小的寄生振荡之间在无源，开关和/或主动操作模式之间转换的混合包络跟踪系统。 该系统可以包括电压控制电路，其包括分别接收第一和第二电压的第一和第二节点接口。 输入节点接口可以被配置为接收输入包络信号。 启用节点干扰可以被配置为接收启用信号，启用信号设置无源或切换操作模式之间的转换到主动操作模式。 电路还可以包括由单个浮动运算放大器驱动的调制晶体管。 在活动操作状态期间，调制晶体管可用于相对于所接收的包络信号调制所提供的电压。

    APPARATUS AND METHOD FOR CLASS-G LINE DRIVER CONTROL SIGNAL
    35.
    发明申请
    APPARATUS AND METHOD FOR CLASS-G LINE DRIVER CONTROL SIGNAL 审中-公开
    用于类别G线驱动器控制信号的装置和方法

    公开(公告)号：WO2010145482A1

    公开(公告)日：2010-12-23

    申请号：PCT/CN2010/073693

    申请日：2010-06-09

    Applicant: HUAWEI TECHNOLOGIES CO., LTD. ,  HESSAM, Mohajeri ,  AMIR, H. Fazlollahi

    Inventor： HESSAM, Mohajeri ,  AMIR, H. Fazlollahi

    IPC: H03F1/02

    CPC classification number: H03F1/025 ,  H03F3/21 ,  H03F2200/504 ,  H03F2200/507 ,  H03F2200/511 ,  H03H11/18 ,  H04L25/0286 ,  H04L25/03019 ,  H04L25/03343 ,  H04L25/03885 ,  Y10T307/696

    Abstract: An apparatus comprising an input, a control signal generator coupled to the input and having a control signal generator output, and an amplifier coupled to the control signal generator output, wherein a voltage supplied to the amplifier is switched based on the control signal generator output, and wherein the control signal generator output is based on a data signal in the input. Also included is an apparatus comprising circuitry configured to implement a method comprising detecting an incoming signal, calculating a derivative of the incoming signal, estimating a future incoming signal based on the derivative of the incoming signal and a time step, and providing the estimated future incoming signal to switch between a first supply voltage and a second supply voltage prior to or concurrent with an arrival of the future incoming signal at the switch, wherein the incoming signal and the future incoming signal are analog signals.

    Abstract translation: 一种装置，包括输入端，耦合到输入端并具有控制信号发生器输出端的控制信号发生器和耦合到控制信号发生器输出端的放大器，其中基于控制信号发生器输出切换提供给放大器的电压， 并且其中所述控制信号发生器输出基于所述输入中的数据信号。 还包括一种装置，其包括被配置为实现一种方法的电路，该方法包括检测输入信号，计算输入信号的导数，基于输入信号的导数和时间步长来估计未来输入信号，以及提供估计的未来进入 信号在开关之前或未来的进入信号的到达之前在第一电源电压和第二电源电压之间切换，其中输入信号和未来的输入信号是模拟信号。

    METHOD AND APPARATUS FOR CONTROLLING A SELECTABLE VOLTAGE AUDIO POWER OUTPUT STAGE
    36.
    发明申请
    METHOD AND APPARATUS FOR CONTROLLING A SELECTABLE VOLTAGE AUDIO POWER OUTPUT STAGE 审中-公开
    用于控制可选择的电压音频功率输出级的方法和装置

    公开(公告)号：WO2008024666A3

    公开(公告)日：2008-05-29

    申请号：PCT/US2007076069

    申请日：2007-08-16

    Applicant: CIRRUS LOGIC INC

    Inventor： MELANSON JOHN L ,  TUCKER JOHN CHRISTOPHER

    IPC: H03F1/02 ,  H03F1/32 ,  H03F3/181

    CPC classification number: H03F1/025 ,  H03F3/183 ,  H03F2200/03 ,  H03F2200/507 ,  H03F2200/511

    Abstract: A method and apparatus for controlling a selectable voltage audio power output stage provides a mechanism for raising the selected power amplifier output voltage in time for the arrival of signal peaks to avoid clipping. Signal peaks may either be delayed by delaying an increase in volume control level or enabling signal compression for a predetermined time period, so that sufficient time is provided for the amplifier power supply to stabilize at a higher operating voltage when an increase of power supply voltage is selected. Alternatively, a signal level may be determined at an upstream source, such as a decoder or filter that provides information in sufficient advance of the arrival of the peaks, and used to control the power supply selection, so that the higher power supply voltage level is selected in advance of arrival of the signal peaks that would otherwise cause clipping at the power amplifier output.

    Abstract translation: 用于控制可选择的电压音频功率输出级的方法和装置提供了用于在信号峰值到达时及时提升所选择的功率放大器输出电压以避免削波的机制。 信号峰值可以通过延迟音量控制电平的增加或在预定时间段内启用信号压缩来延迟，使得当电源电压的增加是放大器电源稳定在较高的工作电压时，提供足够的时间 选择。 或者，可以在诸如解码器或滤波器的上游源处确定信号电平，所述解码器或滤波器提供足够高的峰值到达之前的信息，并且用于控制电源选择，使得较高的电源电压电平为 在信号峰值的到达之前选择，否则将在功率放大器输出端造成限幅。

    ENERGY-EFFICIENT CONSUMER DEVICE AUDIO POWER OUTPUT STAGE
    37.
    发明申请
    ENERGY-EFFICIENT CONSUMER DEVICE AUDIO POWER OUTPUT STAGE 审中-公开
    能源效率消费者设备音频功率输出级

    公开(公告)号：WO2008024665A3

    公开(公告)日：2008-05-22

    申请号：PCT/US2007076068

    申请日：2007-08-16

    Applicant: CIRRUS LOGIC INC

    Inventor： TICKER JOHN CHRISTOPHER ,  ALLEN DANIEL JOHN ,  MELANSON JOHN L ,  PRASAD AMMISETTI

    IPC: H03F1/02 ,  H03F99/00

    CPC classification number: H03G3/004 ,  H02M3/07 ,  H03F1/0227 ,  H03F1/025 ,  H03F3/183 ,  H03F2200/03 ,  H03F2200/211 ,  H03F2200/507 ,  H03G3/20 ,  H03G3/3031

    Abstract: An energy-efficient consumer device audio power output stage provides improved battery life and reduced power dissipation. A power supply having a selectable operating mode supplies the power supply rails to the power amplified output stage. The operating mode is controlled in conformity with the audio signal level, which may be determined from a volume control setting of the device and/or from a signal level detector that determines the amplitude of the signal being amplified. The power supply may be a charge pump in which the operating mode uses a capacitive divider to provide for selection of a power supply output voltage that is a rational fraction of the power supply output voltage in a full-voltage operating mode.

    Abstract translation: 节能消费者设备音频功率输出级提供更好的电池寿命和更低的功耗。 具有可选操作模式的电源将电源轨提供给功率放大输出级。 操作模式根据音频信号电平进行控制，音频信号电平可以根据设备的音量控制设置和/或从确定被放大的信号的幅度的信号电平检测器确定。 电源可以是电荷泵，其中操作模式使用电容分压器来提供在全电压工作模式下选择作为电源输出电压的有效部分的电源输出电压。

    ENERGY-EFFICIENT CONSUMER DEVICE AUDIO POWER OUTPUT STAGE
    38.
    发明申请
    ENERGY-EFFICIENT CONSUMER DEVICE AUDIO POWER OUTPUT STAGE 审中-公开
    节能消费设备音频电源输出级

    公开(公告)号：WO2008024665A2

    公开(公告)日：2008-02-28

    申请号：PCT/US2007/076068

    申请日：2007-08-16

    Applicant: CIRRUS LOGIC, INC.

    Inventor： TICKER, John, Christopher ,  ALLEN, Daniel, John ,  MELANSON, John, L. ,  PRASAD, Ammisetti

    IPC: H03F99/00

    CPC classification number: H03G3/004 ,  H02M3/07 ,  H03F1/0227 ,  H03F1/025 ,  H03F3/183 ,  H03F2200/03 ,  H03F2200/211 ,  H03F2200/507 ,  H03G3/20 ,  H03G3/3031

    Abstract: An energy-efficient consumer device audio power output stage provides improved battery life and reduced power dissipation. A power supply having a selectable operating mode supplies the power supply rails to the power amplified output stage. The operating mode is controlled in conformity with the audio signal level, which may be determined from a volume control setting of the device and/or from a signal level detector that determines the amplitude of the signal being amplified. The power supply may be a charge pump in which the operating mode uses a capacitive divider to provide for selection of a power supply output voltage that is a rational fraction of the power supply output voltage in a full-voltage operating mode.

    Abstract translation:

    高能效消费类设备音频功率输出级可延长电池寿命并降低功耗。 具有可选工作模式的电源将电源轨道提供给功率放大输出级。 操作模式根据音频信号电平进行控制，音频信号电平可以根据设备的音量控制设置和/或根据确定被放大的信号的幅度的信号电平检测器来确定。 电源可以是电荷泵，其中操作模式使用电容分压器来提供电源输出电压的选择，该电源输出电压是全电压操作模式中的电源输出电压的有理分数。

    SIGNAL OUTPUT CIRCUIT, COMMUNICATION APPARATUS AND SIGNAL OUTPUT CONTROL METHOD
    39.
    发明申请
    SIGNAL OUTPUT CIRCUIT, COMMUNICATION APPARATUS AND SIGNAL OUTPUT CONTROL METHOD 审中-公开
    信号输出电路，通信装置和信号输出控制方法

    公开(公告)号：WO2007064024A1

    公开(公告)日：2007-06-07

    申请号：PCT/JP2006/324319

    申请日：2006-11-29

    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. ,  ICHIHARA, Fumio

    Inventor： ICHIHARA, Fumio

    IPC: H03F1/02 ,  H04B3/54 ,  H04L27/26

    CPC classification number: H04B3/54 ,  H03F1/02 ,  H03F1/0211 ,  H03F1/0244 ,  H03F2200/507 ,  H03F2200/511 ,  H04B2203/5408 ,  H04B2203/5416 ,  H04B2203/5445 ,  H04B2203/5483 ,  H04B2203/5491 ,  H04L27/2614

    Abstract: An OFDM signal generator (10) performs inverse Fourier transform of frequency domain data of an OFDM signal, and generates and outputs time domain data. An output amplifier (17) amplifies an analog signal transmitted via a delay unit (12) and a D/A converter (13) . Here, a comparator (14) detects whether the amplitude of a signal has exceeded a predetermined value; and when the amplitude of the signal has exceeded the predetermined value, a timer (15) outputs a timer output during a predetermined period. A voltage switcher (18) switches a power voltage to be supplied to the output amplifier from low voltage power to high voltage power while a timer output is being generated; and increases the power voltage only during a predetermined period elapsed after the amplitude of a signal has exceeded a predetermined value.

    Abstract translation: OFDM信号生成器（10）对OFDM信号的频域数据进行傅里叶逆变换，生成并输出时域数据。 输出放大器（17）放大经由延迟单元（12）和D / A转换器（13）发送的模拟信号。 这里，比较器（14）检测信号的振幅是否超过预定值; 并且当信号的幅度超过预定值时，定时器（15）在预定时段期间输出定时器输出。 当产生定时器输出时，电压切换器（18）将要从低电压功率提供给输出放大器的电源电压切换到高电压电源; 并且仅在信号的振幅超过预定值之后经过的预定时间段内增加电源电压。

    定電圧発生回路
    40.
    发明申请
    定電圧発生回路 审中-公开
    恒定电压发生电路

    公开(公告)号：WO2006035898A1

    公开(公告)日：2006-04-06

    申请号：PCT/JP2005/018014

    申请日：2005-09-29

    Applicant: シチズン時計株式会社 ,  人見 正彦 ,  下鶴 雅士

    Inventor： 人見 正彦 ,  下鶴 雅士

    IPC: G05F3/24 ,  H03F3/343

    CPC classification number: H03F3/45475 ,  G05F3/242 ,  H03F1/305 ,  H03F3/345 ,  H03F2200/507

    Abstract: A constant voltage generating circuit is provided with a reference voltage generating source (1), a differential amplifier (2) wherein an output voltage (REF1) of the reference voltage generating source (1) is inputted to one terminal and a potential (VREF2) obtained by adding a prescribed potential difference to a regulator voltage (VREG) is inputted to the other terminal, and a switch means (6) which is controlled to increase the current quantity of an output terminal (10) of the reference voltage generating source (1) for a certain period immediately after the power supply is turned on. The switch means (6) stabilizes the output voltage (REF1) of the reference voltage generating source (1) in a short time after the power supply is turned on by being turned on/off based on the potential (VREF2), and stabilizes the regulator voltage (VREG).

    Abstract translation: 恒压生成电路具备基准电压发生源（1），将基准电压产生源（1）的输出电压（REF1）输入到一个端子和电位（VREF2））的差分放大器（2） 通过将规定的电位差加到调节器电压（VREG）而获得的开关装置（6）被输入到另一个端子，以及开关装置（6），其被控制以增加基准电压发生源的输出端子（10）的电流量 1）在电源打开后立即一段时间。 开关装置（6）基于电位（VREF2）通过接通/断开而在电源接通之后的短时间内稳定基准电压产生源（1）的输出电压（REF1），并稳定 调节器电压（VREG）。

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