公开(公告)号：CA2420687A1

公开(公告)日：2002-03-07

申请号：CA2420687

申请日：2001-08-17

Applicant: CONEXANT SYSTEMS INC

Inventor： DAMGAARD MORTEN ,  CLARK RICKE W ,  ROZENBLIT DMITRIY ,  DOMINO WILLIAM J

IPC: H03F3/24 ,  H03F1/02 ,  H03G3/30 ,  H04B1/04 ,  H04B7/005 ,  H03G3/10 ,  H03F3/66

Abstract: A system for a closed power control feedback loop (200) allows for the use o f a non-linear amplifier for amplifying a phase modulated (PM) signal while introducing an inverse version of the desired amplitude modulation (AM) sign al into the feedback loop using a variable gain element (Fig. 2, block 212). By introducing an inverse version of the desired (AM) portion of the signal int o the power control feedback loop, the non-linear, and highly efficient, power amplifier may be used to amplify only the (PM) portion of the signal, while the (AM) portion is introduced by the power control feedback loop (200). In another aspect of the invention, an inverse version of the (AM) portion of t he desired transmit signal is introduced into the power control feedback loop o f an amplifier that is amplifying both a phase modulated signal and an amplitu de modulated signal. By introducing an inverse version of the desired (AM) sign al into the power control feedback loop, the power control feedback loop may no t cancel the (AM) component present at the output of the power amplifier. In y et another aspect of the invention, the desired (AM) signal is injected into th e feedback loop with the power control reference signal.

公开(公告)号：AU8846101A

公开(公告)日：2002-03-13

申请号：AU8846101

申请日：2001-08-30

Applicant: CONEXANT SYSTEMS INC

Inventor： KOMAILI JALEH ,  CLARK RICKE W

IPC: H03F1/32 ,  H03F1/34

Abstract: A system for detecting and compensating for a saturation condition of a power amplifier where an error signal is produced by differencing a signal representative of or derived from a control signal for controlling the shape of the output of the power amplifier and a signal representative of or derived from the output of the power amplifier. An integrator integrates the error signal to produce a cumulative error signal. A detection circuit detects a saturation condition when the value of the cumulative error equals or exceeds a predetermined value determined during device calibration. Upon the detection of a saturation condition, a compensation circuit derives a compensation value by multiplying the value of the error signal at the time saturation is detected by a predetermined constant, and subtracts this value from the control signal. The input to the power amplifier is derived from the adjusted control signal.

公开(公告)号：AU8504801A

公开(公告)日：2002-03-13

申请号：AU8504801

申请日：2001-08-17

Applicant: CONEXANT SYSTEMS INC

Inventor： DAMGAARD MORTEN ,  ROZENBLIT DMITRIY ,  DOMINO WILLIAM J ,  CLARK RICKE W

IPC: H03F3/24 ,  H03F1/02 ,  H03G3/30 ,  H04B1/04 ,  H04B7/005

Abstract: A system for a closed power control feedback loop allows for the use of a non-linear amplifier for amplifying a phase modulated (PM) signal while introducing an inverse version of the desired amplitude modulated (AM) signal into the feedback loop using a variable gain element. By introducing an inverse version of the desired AM portion of the signal into the power control feedback loop, the non-linear, and highly efficient, power amplifier may be used to amplify only the PM portion of the signal, while the AM portion is introduced by the power control feedback loop. In another aspect of the invention, an inverse version of the AM portion of the desired transmit signal is introduced into the power control feedback loop of an amplifier that is amplifying both a phase modulated signal and an amplitude modulated signal. By introducing an inverse version of the desired AM signal into the power control feedback loop, the power control feedback loop may not cancel the AM component present at the output of the power amplifier. In yet another aspect of the invention, the desired AM signal is injected into the feedback loop along with the power control reference signal.

公开(公告)号：WO0219545A2

公开(公告)日：2002-03-07

申请号：PCT/US0125846

申请日：2001-08-17

Applicant: CONEXANT SYSTEMS INC

Inventor： DAMGAARD MORTEN ,  ROZENBLIT DMITRIY ,  DOMINO WILLIAM J ,  CLARK RICKE W

IPC: H03F3/24 ,  H03F1/02 ,  H03G3/30 ,  H04B1/04 ,  H04B7/005 ,  H04B

CPC classification number: H03G3/3042 ,  H03F1/02 ,  H03F2200/294 ,  H03F2200/372 ,  H04W52/52

Abstract: A system for a closed power control feedback loop (200) allows for the use of a non-linear amplifier for amplifying a phase modulated (PM) signal while introducing an inverse version of the desired amplitude modulation (AM) signal into the feedback loop using a variable gain element (Fig. 2, block 212). By introducing an inverse version of the desired (AM) portion of the signal into the power control feedback loop, the non-linear, and highly efficient, power amplifier may be used to amplify only the (PM) portion of the signal, while the (AM) portion is introduced by the power control feedback loop (200). In another aspect of the invention, an inverse version of the (AM) portion of the desired transmit signal is introduced into the power control feedback loop of an amplifier that is amplifying both a phase modulated signal and an amplitude modulated signal. By introducing an inverse version of the desired (AM) signal into the power control feedback loop, the power control feedback loop may not cancel the (AM) component present at the output of the power amplifier. In yet another aspect of the invention, the desired (AM) signal is injected into the feedback loop with the power control reference signal.

Abstract translation: 用于闭合功率控制反馈回路（200）的系统允许使用非线性放大器来放大相位调制（PM）信号，同时将期望的幅度调制（AM）信号的逆版本引入到反馈回路中，使用 可变增益元件（图2，框212）。 通过将信号的所需（AM）部分的逆版本引入功率控制反馈回路中，可以使用非线性和高效的功率放大器来放大信号的（PM）部分，而 （AM）部分由功率控制反馈回路（200）引入。 在本发明的另一方面，所需发射信号的（AM）部分的逆版本被引入放大器的功率控制反馈环路中，该放大器正在放大相位调制信号和幅度调制信号。 通过将所需（AM）信号的逆版本引入功率控制反馈回路中，功率控制反馈环路可能不会消除存在于功率放大器输出端的（AM）分量。 在本发明的另一方面，用功率控制参考信号将期望的（AM）信号注入到反馈回路中。

公开(公告)号：WO0219545A8

公开(公告)日：2002-08-22

申请号：PCT/US0125846

申请日：2001-08-17

Applicant: CONEXANT SYSTEMS INC

Inventor： DAMGAARD MORTEN ,  ROZENBLIT DMITRIY ,  DOMINO WILLIAM J ,  CLARK RICKE W

IPC: H03F3/24 ,  H03F1/02 ,  H03G3/30 ,  H04B1/04 ,  H04B7/005 ,  H03F3/66 ,  H03G3/10

CPC classification number: H03G3/3042 ,  H03F1/02 ,  H03F2200/294 ,  H03F2200/372 ,  H04W52/52

Abstract: A system for a closed power control feedback loop (200) allows for the use of a non-linear amplifier for amplifying a phase modulated (PM) signal while introducing an inverse version of the desired amplitude modulation (AM) signal into the feedback loop using a variable gain element (Fig. 2, block 212). By introducing an inverse version of the desired (AM) portion of the signal into the power control feedback loop, the non-linear, and highly efficient, power amplifier may be used to amplify only the (PM) portion of the signal, while the (AM) portion is introduced by the power control feedback loop (200). In another aspect of the invention, an inverse version of the (AM) portion of the desired transmit signal is introduced into the power control feedback loop of an amplifier that is amplifying both a phase modulated signal and an amplitude modulated signal. By introducing an inverse version of the desired (AM) signal into the power control feedback loop, the power control feedback loop may not cancel the (AM) component present at the output of the power amplifier. In yet another aspect of the invention, the desired (AM) signal is injected into the feedback loop with the power control reference signal.

Abstract translation: 用于闭合功率控制反馈回路（200）的系统允许使用非线性放大器来放大相位调制（PM）信号，同时将期望幅度调制（AM）信号的反相形式引入到反馈回路中，使用 一个可变增益元件（图2，框212）。 通过将所需信号（AM）的反相形式引入到功率控制反馈回路中，非线性且高效率的功率放大器可用于仅放大信号的（PM）部分，而 （AM）部分由功率控制反馈回路（200）引入。 在本发明的另一方面，期望发射信号的（AM）部分的反相形式被引入放大器的功率控制反馈回路中，该放大器同时放大相位调制信号和幅度调制信号。 通过将所需（AM）信号的反相版本引入到功率控制反馈回路中，功率控制反馈回路可以不消除存在于功率放大器输出处的（AM）分量。 在本发明的又一个方面，期望的（AM）信号以功率控制参考信号被注入到反馈回路中。

公开(公告)号：WO0219517A2

公开(公告)日：2002-03-07

申请号：PCT/US0126823

申请日：2001-08-30

Applicant: CONEXANT SYSTEMS INC

Inventor： KOMAILI JALEH ,  CLARK RICKE W

IPC: H03F1/32 ,  H03F1/34 ,  H03F

CPC classification number: H03F1/3241 ,  H03F1/34

Abstract: A system for detecting and compensating for a saturation condition of a power amplifier where an error signal is produced by differencing a signal representative of or derived from a control signal for controlling the shape of the output of the power amplifier and a signal representative of or derived from the output of the power amplifier. An integrator integrates the error signal to produce a cumulative error signal. A detection circuit detects a saturation condition when the value of the cumulative error equals or exceeds a predetermined value determined during device calibration. Upon the detection of a saturation condition, a compensation circuit derives a compensation value by multiplying the value of the error signal at the time saturation is detected by a predetermined constant, and subtracts this value from the control signal. The input to the power amplifier is derived from the adjusted control signal.

Abstract translation: 一种用于检测和补偿功率放大器的饱和状态的系统，其中通过差分表示或来自控制信号的信号产生误差信号，用于控制功率放大器的输出的形状和表示或导出的信号 从功率放大器的输出。 积分器积分误差信号以产生累积误差信号。 当累积误差的值等于或超过在设备校准期间确定的预定值时，检测电路检测饱和状态。 在检测到饱和状态时，补偿电路通过将在检测到饱和时的误差信号的值相乘预定的常数而得到补偿值，并从控制信号中减去该值。 功率放大器的输入源自调整后的控制信号。