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    • 10. 发明申请
    • BOOSTED-RAIL AMPLIFIER
    • 升压放大器
    • WO2011031379A2
    • 2011-03-17
    • PCT/US2010/042961
    • 2010-07-22
    • ROCKFORD CORPORATIONSTRICKLAND, James, C.ALBERS, Mark, D.BAKER, David, Dean
    • STRICKLAND, James, C.ALBERS, Mark, D.BAKER, David, Dean
    • H03F3/217H03F3/68
    • H03F3/2173H03F1/0211
    • An amplifier device including an amplifier having an input for receiving an audio input signal and an output for sending an output signal to a load. A boosted-rail circuit is connected to a power source and has a single boosted rail connected to the BTL amplifier. Also, a common-mode circuit is coupled to the boosted-rail circuit and the BTL amplifier. The common-mode circuit sends a common-mode signal to the BTL amplifier that will dynamically track the output voltage supplied from the boosted-rail circuit to the BTL amplifier. In operation, the boosted-rail circuit reacts to the BTL amplifier and switches from a non-boost mode to a boost mode to increase the output voltage supplied to the BTL when the BTL amplifier requires additional voltage.
    • 一种放大器装置,包括具有用于接收音频输入信号的输入的放大器和用于将输出信号发送到负载的输出。 升压电路连接到电源,并具有连接到BTL放大器的单个升压轨。 此外,共模电路耦合到升压轨电路和BTL放大器。 共模电路向BTL放大器发送共模信号,该BTL放大器将动态跟踪从升压轨电路提供给BTL放大器的输出电压。 在运行中,升压型电路对BTL放大器产生反应,并从非升压模式切换到升压模式,以增加当BTL放大器需要额外电压时提供给BTL的输出电压。