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1. 发明申请

WO2004054097A1 PRESERVING LINEARITY OF AN ISOLATOR-FREE POWER AMPLIFIER BY DYNAMICALLY ADJUSTING GAIN AND PHASE 审中-公开
标题翻译：通过动态调整增益和相位保持无隔离功率放大器的线性
公开(公告)号：WO2004054097A1
公开(公告)日：2004-06-24
申请号：PCT/IB2003/005938
申请日：2003-12-10
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , OSMAN, Saleh , KEENAN, Richard, F. , LUCEK, Jaroslaw
发明人： OSMAN, Saleh , KEENAN, Richard, F. , LUCEK, Jaroslaw
IPC分类号： H03F1/56
CPC分类号： H03F1/302 , H03F1/0272 , H03F1/32 , H03F1/52 , H03F3/191 , H03F3/24 , H03F2200/294 , H03F2200/372 , H03G3/3042
摘要： An amplifier circuit (100) includes a driver stage (120) with at least an active device (140) for pre-amplification and output of a pre-amplified signal; and an output stage (160) with at least an active device (180) for further amplification of the pre-amplified signal and output of an amplified signal. A phase shifter (155) shifts the phase of the pre-amplified signal. A detector (190) measures levels of forward and reflected parts of the amplified signal, and a gain and phase control circuit (145) independently and selectively controls and adjusts the phase shifter (155) for optimal amplifier performance and minimal difference between the forward and reflected signals. The gain and phase control circuit also independently and selectively controls and modifies the gain of the active devices (140, 180) of the driver and output stages (120, 160) as a function of the levels of the forward and reflected signals to substantially maintain constant linearity of the amplifier circuit (100) with load variations.
摘要翻译：放大器电路（100）包括具有用于预放大和输出预放大信号的至少有源器件（140）的驱动器级（120）以及具有至少一个有源器件（180）的输出级（160），用于进一步放大预放大的信号并输出放大的信号。移相器（155）使预放大信号的相位移位。检测器（190）测量放大信号的正向和反射部分的电平，并且增益和相位控制电路（145）独立地并且选择性地控制和调整移相器（155）以获得最佳的放大器性能，并且前向和反射信号。增益和相位控制电路还独立地和选择性地控制和修改驱动器和输出级（120,160）的有源器件（140,180）的增益，作为前向和反射信号的电平的函数，以基本维持具有负载变化的放大器电路（100）的恒定线性度。

2. 发明申请

WO2004054095A1 PRESERVING LINEARITY OF AN ISOLATOR-FREE POWER AMPLIFIER BY DYNAMICALLY SWITCHING ACTIVE DEVICES 审中-公开
标题翻译：通过动态切换主动设备保持无隔离功率放大器的线性
公开(公告)号：WO2004054095A1
公开(公告)日：2004-06-24
申请号：PCT/IB2003/005881
申请日：2003-12-10
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , OSMAN, Saleh , KEENAN, Richard, F. , LUCEK, Jaroslaw
发明人： OSMAN, Saleh , KEENAN, Richard, F. , LUCEK, Jaroslaw
IPC分类号： H03F1/32
CPC分类号： H03F1/0277 , H03F1/32 , H03F1/52 , H03F2200/294 , H03F2200/372 , H03G1/0088
摘要： An amplifier circuit (100) includes a driver stage (120) with active devices (140) for pre-amplification and output of a pre-amplified signal; and an output stage (160) with active devices (180) for further amplification of the pre-amplified signal and output of an amplified signal. A detector (190) measures levels of forward and reflected parts of the amplified signal, and a control circuit (145) independently and selectively controls turning on and off of the active devices (140, 180) of the driver and output stages (120, 160) as a function of the levels of the forward and reflected signals to substantially maintain linearity of the amplifier circuit (100) with load variations.
摘要翻译：放大器电路（100）包括具有有源器件（140）的驱动器级（120），用于预放大和预放大信号的输出; 以及具有用于进一步放大预放大信号和输出放大信号的有源器件（180）的输出级（160）。检测器（190）测量放大信号的正向和反射部分的电平，并且控制电路（145）独立地选择性地控制驱动器和输出级（120,180）的有源器件（140,180）的导通和关断， 160）作为正向和反射信号的电平的函数，以基本上保持放大器电路（100）的负载变化的线性。

3. 发明申请

WO2004054096A1 PRESERVING LINEARITY OF AN ISOLATOR-FREE POWER AMPLIFIER BY DYNAMICALLY ADJUSTING BIAS AND SUPPLY OF ACTIVE DEVICES 审中-公开
标题翻译：通过动态调整偏置和主动设备的供应来保持无隔离功率放大器的线性
公开(公告)号：WO2004054096A1
公开(公告)日：2004-06-24
申请号：PCT/IB2003/005939
申请日：2003-12-10
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , OSMAN, Saleh , KEENAN, Richard, F. , LUCEK, Jaroslaw
发明人： OSMAN, Saleh , KEENAN, Richard, F. , LUCEK, Jaroslaw
IPC分类号： H03F1/52
CPC分类号： H03F1/52 , H03F1/0272 , H03F1/32 , H03F2200/294 , H03F2200/372 , H04B1/0466
摘要： An amplifier circuit (100) includes a driver stage (120) with at least an active device (140) for pre-amplification and output of a pre-amplified signal; and an output stage (160) with at least an active device (180) for further amplification of the pre-amplified signal and output of an amplified signal. A detector (190) measures levels of forward and reflected parts of the amplified signal, and a control circuit (145) modifies DC levels or offsets of the pre-amplified and/or amplified signals to substantially maintain linearity of the amplifier circuit (100) with load variations. The control circuit (145) further independently and selectively controls and adjusts the DC bias at the input of the active devices (140, 180) of the driver and output stages (120, 160) as a function of the levels of the forward and reflected signals to substantially maintain linearity of the amplifier circuit (100) with load variations.
摘要翻译：放大器电路（100）包括具有用于预放大和输出预放大信号的至少一个有源器件（140）的驱动器级（120）以及具有至少一个有源器件（180）的输出级（160），用于进一步放大预放大的信号并输出放大的信号。检测器（190）测量放大信号的正向和反射部分的电平，并且控制电路（145）修改预放大和/或放大的信号的DC电平或偏移，以基本维持放大器电路（100）的线性度，负载变化。控制电路（145）进一步独立地并且选择性地控制和调整在驱动器和输出级（120,160）的有源器件（140,180）的输入处的直流偏压作为前向和反射的电平的函数信号以使负载变化基本上保持放大器电路（100）的线性。

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