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    • 6. 发明申请
    • POWER STAGE WITH SWITCHED MODE AMPLIFIER AND LINEAR AMPLIFIER
    • 功率级带开关模式放大器和线性放大器
    • WO2016069366A2
    • 2016-05-06
    • PCT/US2015/056846
    • 2015-10-22
    • CIRRUS LOGIC, INC.
    • KING, Eric J.AMADI, Christophe J.MELANSON, John L.
    • H03F1/02
    • H03F3/2175H03F1/0277H03F1/083H03F3/181H03F3/185H03F3/217H03F3/2171H03F3/2173H03F3/2178H03F2200/03H03F2200/231
    • A method for producing an output voltage to a load may include, in a power stage comprising power converter having a power inductor, a plurality of switches arranged to sequentially operate in a plurality of switch configurations, and an output for producing the output voltage comprising a first output terminal and a second output terminal, controlling the linear amplifier to transfer electrical energy from the input source of the power stage to the load in accordance with one or more least significant bits of a digital input signal, and controlling the power converter in accordance with bits of the digital input signal other than the one or more least significant bits to sequentially apply switch configurations from the plurality of switch configurations to selectively activate or deactivate each of the plurality of switches in order to transfer electrical energy from the input source of the power stage to the load.
    • 用于产生到负载的输出电压的方法可以包括:在包括具有功率电感器的功率转换器的功率级中,布置成以多个开关配置顺序操作的多个开关,以及 输出用于产生包括第一输出端子和第二输出端子的输出电压,控制线性放大器根据数字输入信号的一个或多个最低有效位将电能从功率级的输入源传输到负载 以及根据除一个或多个最低有效位之外的数字输入信号的位来控制功率转换器,以顺序地应用来自多个开关配置的开关配置,以选择性地激活或去激活多个开关中的每一个以便传送 从功率级的输入源到负载的电能。