Audio amplifier controller having soft start circuit protection and associated methods
    1.
    发明授权
    Audio amplifier controller having soft start circuit protection and associated methods 失效
    具有软启动电路保护和相关方法的音频放大器控制器

    公开(公告)号:US06448857B1

    公开(公告)日:2002-09-10

    申请号:US09548961

    申请日:2000-04-13

    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。