Excess current and saturation detection and correction in a power amplifier
    1.
    发明授权
    Excess current and saturation detection and correction in a power amplifier 有权
    在功率放大器中过电流和饱和度检测和校正

    公开(公告)号:US07962109B1

    公开(公告)日:2011-06-14

    申请号:US11679201

    申请日:2007-02-27

    IPC分类号: H04B17/00

    CPC分类号: H03G3/3047

    摘要: A system and method for detecting and correcting over-current and/or over-voltage conditions in power amplifier circuitry in a transmit chain of a mobile terminal are provided. In general, over-current detection and correction circuitry combines a current detection signal indicative of a current provided to or drained by the power amplifier circuitry during ramp-up for a transmit burst and a substantially inverse current ramping profile to provide a first constant value. The first constant value is compared to a current threshold or limit value to determine whether an over-current condition exists. If an over-current condition exists, the over-current detection and correction circuitry operates to reduce the output power of the power amplifier circuitry during ramp-up for the transmit burst to correct for the over-current condition. In a similar manner, over-voltage detection circuitry operates to detect and correct over-voltage conditions during ramp-up for the transmit burst.

    摘要翻译: 提供了一种用于在移动终端的发射链中的功率放大器电路中检测和校正过电流和/或过电压条件的系统和方法。 通常,过电流检测和校正电路组合指示在斜波上升期间功率放大器电路提供给发射脉冲串的电流的电流检测信号和用于发射脉冲串的基本上反向电流斜坡分布以提供第一恒定值。 将第一常数值与当前阈值或限制值进行比较,以确定是否存在过电流条件。 如果存在过电流状况,则过流检测和校正电路用于在发射突发的斜坡上降低功率放大器电路的输出功率,以校正过电流状况。 以类似的方式,过电压检测电路用于在发射突发的斜坡上升期间检测和校正过电压状况。

    Over-voltage protection accounting for battery droop
    2.
    发明授权
    Over-voltage protection accounting for battery droop 有权
    过电压保护计算电池下垂

    公开(公告)号:US07977919B1

    公开(公告)日:2011-07-12

    申请号:US11679194

    申请日:2007-02-27

    IPC分类号: H02J7/00

    CPC分类号: H04B1/06 H04B2001/0416

    摘要: An over-voltage detection and correction system for a transmitter of a mobile terminal that accounts for battery droop during a transmit burst is provided. In general, prior to ramp-up for a first transmit burst, a voltage of the battery of the mobile terminal at a no-load condition is measured. After ramp-up for the transmit burst, the voltage of the battery is measured at full-load, and a current provided to a power amplifier of the transmitter at full-load is detected. Based on the measured voltage of the battery at no-load, the measured voltage of the battery at full-load, and the detected current provided to the power amplifier at full-load, a resistance of the battery is determined. The resistance of the battery is thereafter used to compensate for battery droop during over-voltage detection and correction for one or more subsequent transmit bursts.

    摘要翻译: 提供了一种用于在发送突发期间考虑电池下降的移动终端的发射机的过电压检测和校正系统。 通常,在第一发射突发的斜坡上升之前,测量移动终端的电池在空载状态下的电压。 在发送突发的斜坡上升之后,在满负载时测量电池的电压,并检测在满载时提供给发射机的功率放大器的电流。 基于空载电池的测量电压,满载时电池的测量电压和满载时提供给功率放大器的检测电流,确定电池的电阻。 此后,电池的电阻用于补偿过电压检测期间的电池下降和针对一个或多个后续发射脉冲串的校正。

    Over-voltage protection accounting for battery droop
    3.
    发明授权
    Over-voltage protection accounting for battery droop 有权
    过电压保护计算电池下垂

    公开(公告)号:US08536837B1

    公开(公告)日:2013-09-17

    申请号:US13156518

    申请日:2011-06-09

    IPC分类号: H02J7/00

    CPC分类号: H04B1/06 H04B2001/0416

    摘要: An over-voltage detection and correction system for a transmitter of a mobile terminal that accounts for battery droop during a transmit burst is provided. In general, prior to ramp-up for a first transmit burst, a voltage of the battery of the mobile terminal at a no-load condition is measured. After ramp-up for the transmit burst, the voltage of the battery is measured at full-load, and a current provided to a power amplifier of the transmitter at full-load is detected. Based on the measured voltage of the battery at no-load, the measured voltage of the battery at full-load, and the detected current provided to the power amplifier at full-load, a resistance of the battery is determined. The resistance of the battery is thereafter used to compensate for battery droop during over-voltage detection and correction for one or more subsequent transmit bursts.

    摘要翻译: 提供了一种用于在发送突发期间考虑电池下降的移动终端的发射机的过电压检测和校正系统。 通常,在第一发射突发的斜坡上升之前,测量移动终端的电池在空载状态下的电压。 在发送突发的斜坡上升之后,在满负载时测量电池的电压,并检测在满载时提供给发射机的功率放大器的电流。 基于空载电池的测量电压,满载时电池的测量电压和满载时提供给功率放大器的检测电流,确定电池的电阻。 此后,电池的电阻用于补偿过电压检测期间的电池下降和针对一个或多个后续发射脉冲串的校正。

    Utilizing computed battery resistance as a battery-life indicator in a mobile terminal
    4.
    发明授权
    Utilizing computed battery resistance as a battery-life indicator in a mobile terminal 有权
    利用计算的电池电阻作为移动终端中的电池寿命指示器

    公开(公告)号:US08035397B1

    公开(公告)日:2011-10-11

    申请号:US12873968

    申请日:2010-09-01

    IPC分类号: G01N27/416 H04M1/00 H04B1/04

    摘要: An over-voltage detection and correction system for a transmitter of a mobile terminal that accounts for battery droop during a transmit burst is provided. In general, prior to ramp-up for a first transmit burst, a voltage of the battery of the mobile terminal at a no-load condition is measured. After ramp-up for the transmit burst, the voltage of the battery is measured at full-load, and a current provided to a power amplifier of the transmitter at full-load is detected. Based on the measured voltage of the battery at no-load, the measured voltage of the battery at full-load, and the detected current provided to the power amplifier at full-load, a resistance of the battery is determined. The battery resistance is thereafter updated as desired and used as an indicator of remaining battery-life or power of the battery of the mobile terminal.

    摘要翻译: 提供了一种用于在发送突发期间考虑电池下降的移动终端的发射机的过电压检测和校正系统。 通常,在第一发射突发的斜坡上升之前,测量移动终端的电池在空载状态下的电压。 在发送突发的斜坡上升之后,在满负载时测量电池的电压,并检测在满载时提供给发射机的功率放大器的电流。 基于空载电池的测量电压,满载时电池的测量电压和满载时提供给功率放大器的检测电流,确定电池的电阻。 然后根据需要更新电池电阻,并将其用作移动终端的电池的剩余电池寿命或电力的指标。

    Receiver unit and method for correcting a value of a receive signal strength indicator
    6.
    发明授权
    Receiver unit and method for correcting a value of a receive signal strength indicator 有权
    用于校正接收信号强度指示器的值的接收器单元和方法

    公开(公告)号:US09438358B2

    公开(公告)日:2016-09-06

    申请号:US14423724

    申请日:2012-09-14

    摘要: A receiver unit comprising a mixer, a test signal unit, a multiplexer unit, an amplifier unit, a signal strength unit, and a digital control unit is described. The mixer may be arranged to downconvert a received radio-frequency signal to an intermediate frequency, thereby generating a reception signal having the intermediate frequency. The multiplexer unit may be connected to the mixer and to the test signal unit and arranged to select, among the reception signal and a test signal, a multiplexer output signal in dependence on an operating signal. The amplifier unit may be connected to the multiplexer unit and arranged to amplify the multiplexer output signal, thereby generating an amplified signal. The signal strength unit may be connected to the amplifier unit and arranged to generate a signal strength indicator indicative of a signal strength of the amplified signal. The control unit may be connected to the signal strength unit and arranged to generate the operating signal in accordance with an operating cycle, the operating cycle comprising one or more test phases and a reception phase. The test signal unit may be connected to the control unit and arranged to generate the test signal in dependence on the operating signal, the test signal having the intermediate frequency. The control unit may be further arranged to: gather, in each of the test phases, a test value of the signal strength indicator, thus gathering one or more test values; determine a numerical transformation on the basis of the one or more test values; gather, in the reception phase, a reception value of the signal strength indicator; and compute a corrected signal strength value by applying the transformation to the reception value.

    摘要翻译: 描述了包括混频器,测试信号单元,多路复用器单元,放大器单元,信号强度单元和数字控制单元的接收器单元。 混频器可以被布置成将所接收的射频信号下变频到中频,从而产生具有中频的接收信号。 复用器单元可以连接到混频器和测试信号单元,并且被布置成根据操作信号在接收信号和测试信号之间选择多路复用器输出信号。 放大器单元可以连接到多路复用器单元并且被布置成放大多路复用器输出信号,从而产生放大的信号。 信号强度单元可以连接到放大器单元并被布置成产生指示放大信号的信号强度的信号强度指示符。 控制单元可以连接到信号强度单元,并被布置成根据操作周期产生操作信号,操作周期包括一个或多个测试阶段和接收阶段。 测试信号单元可以连接到控制单元,并被布置成根据操作信号产生测试信号,测试信号具有中频。 控制单元还可以被布置成:在每个测试阶段中收集信号强度指示器的测试值,从而收集一个或多个测试值; 基于一个或多个测试值确定数值变换; 在接收阶段收集信号强度指示符的接收值; 并且通过将变换应用于接收值来计算校正的信号强度值。

    RECEIVER UNIT AND METHOD FOR CORRECTING A VALUE OF A RECEIVE SIGNAL STRENGTH INDICATOR
    7.
    发明申请
    RECEIVER UNIT AND METHOD FOR CORRECTING A VALUE OF A RECEIVE SIGNAL STRENGTH INDICATOR 有权
    接收单元和校正接收信号强度指示值的方法

    公开(公告)号:US20150207577A1

    公开(公告)日:2015-07-23

    申请号:US14423724

    申请日:2012-09-14

    摘要: A receiver unit comprising a mixer, a test signal unit, a multiplexer unit, an amplifier unit, a signal strength unit, and a digital control unit is described. The mixer may be arranged to downconvert a received radio-frequency signal to an intermediate frequency, thereby generating a reception signal having the intermediate frequency. The multiplexer unit may be connected to the mixer and to the test signal unit and arranged to select, among the reception signal and a test signal, a multiplexer output signal in dependence on an operating signal. The amplifier unit may be connected to the multiplexer unit and arranged to amplify the multiplexer output signal, thereby generating an amplified signal. The signal strength unit may be connected to the amplifier unit and arranged to generate a signal strength indicator indicative of a signal strength of the amplified signal. The control unit may be connected to the signal strength unit and arranged to generate the operating signal in accordance with an operating cycle, the operating cycle comprising one or more test phases and a reception phase. The test signal unit may be connected to the control unit and arranged to generate the test signal in dependence on the operating signal, the test signal having the intermediate frequency. The control unit may be further arranged to: gather, in each of the test phases, a test value of the signal strength indicator, thus gathering one or more test values; determine a numerical transformation on the basis of the one or more test values; gather, in the reception phase, a reception value of the signal strength indicator WO; and compute a corrected signal strength value by applying the transformation to the reception value.

    摘要翻译: 描述了包括混频器,测试信号单元,多路复用器单元,放大器单元,信号强度单元和数字控制单元的接收器单元。 混频器可以被布置成将所接收的射频信号下变频到中频,从而产生具有中频的接收信号。 复用器单元可以连接到混频器和测试信号单元,并且被布置成根据操作信号在接收信号和测试信号之间选择多路复用器输出信号。 放大器单元可以连接到多路复用器单元并且被布置成放大多路复用器输出信号,从而产生放大的信号。 信号强度单元可以连接到放大器单元并被布置成产生指示放大信号的信号强度的信号强度指示符。 控制单元可以连接到信号强度单元,并被布置成根据操作周期产生操作信号,操作周期包括一个或多个测试阶段和接收阶段。 测试信号单元可以连接到控制单元,并被布置成根据操作信号产生测试信号,测试信号具有中频。 控制单元还可以被布置成:在每个测试阶段中收集信号强度指示器的测试值,从而收集一个或多个测试值; 基于一个或多个测试值确定数值变换; 在接收阶段收集信号强度指示符WO的接收值; 并且通过将变换应用于接收值来计算校正的信号强度值。