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公开(公告)号：US07342445B2
公开(公告)日：2008-03-11
申请号：US11420831
申请日：2006-05-30
IPC分类号： H03G3/20
CPC分类号： H03G3/004 , H03F1/0211 , H03F3/24 , H03F2200/451 , H03F2200/504 , H03G3/3036
摘要： A method (200) and radio frequency amplifier circuit (100) for adjusting a gain setting of a power amplifier (102) and a gain setting of a power amplifier driver (106) that form part of the radio frequency amplifier circuit (100). The method (200) includes selecting (220) a power output value for the power amplifier and an associated constant envelope modulated radio frequency signal supplied by the power amplifier driver (106) to the power amplifier (102) and then sensing variations (240) in a power output value of the power amplifier (102). Next there is performed adjusting (250) both the gain setting of the power amplifier (102) and adjusting the gain setting of the power amplifier driver (106) in response to the sensing so that the constant envelope modulated signal is within a linear operating region of the power amplifier (102). The gain settings of the power amplifier (102) and power amplifier driver (106) are concurrently adjusted until the power output value for the power amplifier is achieved.
摘要翻译： 一种用于调整功率放大器（102）的增益设置的方法（200）和射频放大器电路（100）以及形成射频放大器电路（100）的一部分的功率放大器驱动器（106）的增益设置。 方法（200）包括将功率放大器的功率输出值和由功率放大器驱动器（106）提供的相关联的恒定包络调制射频信号选择（220）到功率放大器（102），然后感测变化（240） 在功率放大器（102）的功率输出值中。 接下来，响应于感测，执行功率放大器（102）的增益设置和调整功率放大器驱动器（106）的增益设置两者的调整（250），使得恒定包络线调制信号在线性操作区域内 的功率放大器（102）。 同时调整功率放大器（102）和功率放大器驱动器（106）的增益设置，直到达到功率放大器的功率输出值。
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公开(公告)号：US07154338B2
公开(公告)日：2006-12-26
申请号：US11026213
申请日：2004-12-30
IPC分类号： H03G3/10
CPC分类号： H03G3/3047
摘要： A method (400) for controlling power and an amplifier and associated power control circuit (100) with a power amplifier (110) coupled through a current sensing resistor (Rsen) to a supply voltage line (vcc). There is also a current to voltage converter (120) having a converter output (135) and at least one converter input, the converter input being coupled to the supply voltage line (Vcc) of the power amplifier (110). A voltage reference providing circuitry (140) is coupled to a second input (152) of an integrator (150) that also has an integrator output (153) and a first input (151) coupled to the converter output (135) and a direct current biasing circuit (195) couples the integrator output ((153) to an amplifier input (111) of amplifier (110). The method (400) and circuit (100) use a time dependent pre-defined voltage characteristic supplied to the integrator (150).
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公开(公告)号：US20060145764A1
公开(公告)日：2006-07-06
申请号：US11026213
申请日：2004-12-30
IPC分类号： H03G3/10
CPC分类号： H03G3/3047
摘要： A method (400) for controlling power and an amplifier and associated power control circuit (100) with a power amplifier (110) coupled through a current sensing resistor (Rsen) to a supply voltage line (vcc). There is also a current to voltage converter (120) having a converter output (135) and at least one converter input, the converter input being coupled to the supply voltage line (Vcc) of the power amplifier (110). A voltage reference providing circuitry (140) is coupled to a second input (152) of an integrator (150) that also has an integrator output (153) and a first input (151) coupled to the converter output (135) and a direct current biasing circuit (195) couples the integrator output ((153) to an amplifier input (111) of amplifier (110). The method (400) and circuit (100) use a time dependent pre-defined voltage characteristic supplied to the integrator (150).
摘要翻译： 一种用于通过电流感测电阻器（Rsen）耦合到电源电压线（vcc）的功率放大器（110）来控制功率的方法（400）和放大器以及相关联的功率控制电路（100）。 还存在具有转换器输出（135）和至少一个转换器输入的电流 - 电压转换器（120），该转换器输入耦合到功率放大器（110）的电源电压线（Vcc）。 电压参考提供电路（140）耦合到积分器（150）的第二输入端（152），积分器（150）还具有耦合到转换器输出端（135）的积分器输出（153）和第一输入（151） 电流偏置电路（195）将积分器输出（（153））耦合到放大器（110）的放大器输入（111），方法（400）和电路（100）使用提供给积分器的时间相关的预定电压特性 （150）。
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