公开(公告)号：US06448857B1

公开(公告)日：2002-09-10

申请号：US09548961

申请日：2000-04-13

申请人： Felix Clarence Quintanar ,  Juan Humberto Organvidez

发明人： Felix Clarence Quintanar ,  Juan Humberto Organvidez

IPC分类号： H03F152

CPC分类号： H03F1/52 ,  H03F3/3074 ,  H03F3/68

摘要： An audio amplifier power and temperature controller and associated methods are provided. The controller preferably includes a power receiving circuit positioned to receive power from a power source to an audio amplifier and a power condition switching control circuit responsive to the power receiving circuit to switch components of an audio amplifier during a plurality of power conditions. The power condition switching control circuit preferably includes a soft start circuit responsive to the power receiving circuit to limit inrush current from the power receiving circuit and to slowly ramp up to an audio amplifier on-state and a thermal status monitoring and controlling circuit to monitor thermal status of operating values of audio amplifier components and responsively decrease power to the audio amplifier components to protect the audio amplifier components against damage caused by excess heat and responsively increase power when the audio amplifier components return to normal thermal operating conditions.

摘要翻译： 提供音频放大器功率和温度控制器及相关方法。 控制器优选地包括功率接收电路，其被定位成从电源接收到音频放大器的功率，以及功率状态切换控制电路，其响应于功率接收电路在多个功率条件期间切换音频放大器的组件。 功率条件切换控制电路优选地包括软启动电路，其响应于电力接收电路以限制来自电力接收电路的浪涌电流并缓慢地向上升高到音频放大器导通状态，以及热状态监测和控制电路以监测热 音频放大器组件的操作值的状态并且响应地降低音频放大器组件的功率，以保护音频放大器组件免受多余热量的损害，并且当音频放大器组件返回到正常的热操作条件时响应地增加功率。

公开(公告)号：US06329880B2

公开(公告)日：2001-12-11

申请号：US09761588

申请日：2001-01-18

申请人： Makoto Akiya

发明人： Makoto Akiya

IPC分类号： H03F152

CPC分类号： H03F1/56 ,  H03F1/0261

摘要： An object of the present invention is to allow the miniaturization of a mobile communication equipment and the reduction of consumption power, and to improve the electrical characteristics of a final stage amplifier. An inputted RF signal is amplified to a specified transmission output by a final stage amplifier, the output power and a reflected wave generated by mismatching between an output impedance of the final stage amplifier and a load impedance connected to an output side of the final stage amplifier are detected by a directional coupler. Two switches are selectively switched in a time division manner, a DC voltage corresponding to the reflected wave is selected, a comparator compares a threshold voltage with the DC voltage, a switch is switched by an output of the comparator outputted in accordance with the comparison, and gate voltages are selectively applied to the final stage amplifier.

公开(公告)号：US06188277B1

公开(公告)日：2001-02-13

申请号：US09137643

申请日：1998-08-19

申请人： Dmitriy Borodulin ,  Zhiqun Hu ,  Peter J. Poggi ,  George Cabrera ,  Timothy W. Dittmer ,  Bryce A. Robertson

发明人： Dmitriy Borodulin ,  Zhiqun Hu ,  Peter J. Poggi ,  George Cabrera ,  Timothy W. Dittmer ,  Bryce A. Robertson

IPC分类号： H03F152

CPC分类号： H03G3/3042 ,  H03F1/52 ,  H03F3/604

摘要： A power amplifier system is presented for amplifying an RF input signal. The system includes a vector modulator for receiving and modifying an input signal and providing therefrom a modified signal. The system also includes at least one power amplifier the operation of which is monitored and the vector modulator is controlled in accordance with the monitoring.

摘要翻译： 提出了用于放大RF输入信号的功率放大器系统。 该系统包括用于接收和修改输入信号并由其提供修改的信号的矢量调制器。 该系统还包括至少一个功率放大器，其操作被监视并且矢量调制器根据监视被控制。