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1. 发明申请

WO2006101732A2 BIAS CONTROL FOR REDUCING AMPLIFIER POWER CONSUMPTION AND MAINTAINING LINEARITY 审中-公开
标题翻译：用于减少放大器功耗和维持线性度的偏差控制
公开(公告)号：WO2006101732A2
公开(公告)日：2006-09-28
申请号：PCT/US2006008199
申请日：2006-03-08
申请人： SKYWORKS SOLUTIONS INC , NELLIS KEITH , METZGER ANDRE , SMALL GRANT , HAGEMAN MICHAEL L , SHIE TERRY J , BURGER KERRY
发明人： NELLIS KEITH , METZGER ANDRE , SMALL GRANT , HAGEMAN MICHAEL L , SHIE TERRY J , BURGER KERRY
IPC分类号： H03G3/20
CPC分类号： H03F1/30 , H03F1/0205 , H03F1/0261 , H03F1/32 , H03F3/195 , H03F2200/294 , H03F2200/318 , H03F2200/372 , H03F2200/411
摘要： A method and apparatus for biasing an amplifying device whereby the bias current tracks the input power or the power level of a control signal to thereby efficiently match the bias current with needs of the amplifying device. This method and apparatus overcomes the drawbacks of the prior art by biasing, not for maximum output power, but for the power level of the input signal or the control signal, hi one embodiment a current conditioner operates in connection with the self adjusting biasing circuit to scale or adjust, potentially on an exponential basis, the biasing current for one or more amplifier stages. A cancellation current source may be configured within the bias circuit to cancel unneeded current to further minimize current consumption.
摘要翻译：一种用于偏置放大装置的方法和装置，由此偏置电流跟踪控制信号的输入功率或功率电平，从而将偏置电流与放大装置的需要有效地匹配。该方法和装置通过偏置而不是为了最大输出功率，但是对于输入信号或控制信号的功率电平来克服现有技术的缺点。在一个实施例中，电流调节器与自调整偏置电路相结合可能在指数的基础上缩放或调整一个或多个放大器级的偏置电流。可以在偏置电路内配置消除电流源以消除不需要的电流以进一步最小化电流消耗。

2. 发明申请

WO2006020521A2 QUIESCENT CURRENT CONTROL CIRCUIT FOR POWER AMPLIFIERS 审中-公开
标题翻译：功率放大器的静态电流控制电路
公开(公告)号：WO2006020521A2
公开(公告)日：2006-02-23
申请号：PCT/US2005027959
申请日：2005-08-05
申请人： SKYWORKS SOLUTIONS INC , NAIK AMISH , METZGER ANDRE , FOWLER THOMAS L
发明人： NAIK AMISH , METZGER ANDRE , FOWLER THOMAS L
CPC分类号： H03G7/06 , H03F2200/504 , H03G3/3042
摘要： According to one exemplary embodiment, a circuit arrangement includes a power amplifier configured to receive an RF input signal. The circuit arrangement further includes a control circuit configured to receive and convert the RF input signal to an output DC voltage. The control circuit includes a voltage amplifier coupled to a peak detector circuit, where the peak detector circuit outputs the output DC voltage. The circuit arrangement further includes an analog control bias circuit coupling the output DC voltage to a bias input of the power amplifier. The output DC voltage causes the power amplifier to have a quiescent current that increases in a way that is substantially logarithmic with respect to the amplitude of the RF input signal. An increase in the RF input power can cause a substantially linear increase in the output DC voltage, where the RF input power is measured in dBm.
摘要翻译：根据一个示例性实施例，电路装置包括被配置为接收RF输入信号的功率放大器。该电路装置进一步包括控制电路，该控制电路被配置为接收RF输入信号并将其转换为输出DC电压。控制电路包括耦合到峰值检测器电路的电压放大器，其中峰值检测器电路输出输出DC电压。该电路装置还包括将输出DC电压耦合到功率放大器的偏置输入端的模拟控制偏置电路。输出DC电压使功率放大器具有以相对于RF输入信号的幅度基本对数的方式增加的静态电流。 RF输入功率的增加会导致输出DC电压的基本线性增加，其中RF输入功率以dBm为单位进行测量。

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