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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

WO2007005376A3 AUTOMATIC BIAS CONTROL CIRCUIT FOR LINEAR POWER AMPLIFIERS 审中-公开
标题翻译：线性功率放大器的自动偏置控制电路
公开(公告)号：WO2007005376A3
公开(公告)日：2007-04-05
申请号：PCT/US2006024823
申请日：2006-06-23
申请人： SKYWORKS SOLUTIONS INC , RIPLEY DAVID S , ANDRYS PAUL R , NELLIS KEITH
发明人： RIPLEY DAVID S , ANDRYS PAUL R , NELLIS KEITH
IPC分类号： H03F3/30
CPC分类号： H03F1/0261 , H03F1/0272 , H03F1/30 , H03F1/32 , H03F2200/435 , H03F2200/78 , H03F2200/99
摘要： According to an exemplary embodiment, an amplification module includes a power amplifier (106) configured to receive an RF input signal and provide an RF output signal. The amplification module further includes an autobias control circuit (102) configured to receive and convert the Rf output signal to a control signal. The control signal can cause the power amplifeir to have a quiescent current that increases substantially linearly in response to an increase in the RF output power of the RF signal. The autobias control circuit can include a peak detector/log converter circuit coupled to a first input of a differential amplifier, where the differential amplifier outputs the control signal. The autobias control circuit can further include a DC reference circuit coupled to a second input of the differential amplifier. The amplification module further includes an analog bias circuit (104) coupling the control voltage to a bias input of said power amplifier.
摘要翻译：根据示例性实施例，放大模块包括被配置为接收RF输入信号并提供RF输出信号的功率放大器（106）。放大模块还包括一个自动分度控制电路（102），被配置为接收并将该Rf输出信号转换成一个控制信号。控制信号可以使功率放大器具有响应于RF信号的RF输出功率的增加而基本线性地增加的静态电流。自动偏置控制电路可以包括耦合到差分放大器的第一输入的峰值检测器/对数转换器电路，其中差分放大器输出控制信号。自动比例控制电路还可以包括耦合到差分放大器的第二输入的DC参考电路。放大模块还包括将控制电压耦合到所述功率放大器的偏置输入的模拟偏置电路（104）。

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