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    • 73. 发明申请
    • POWER STAGE WITH SWITCHED MODE AMPLIFIER AND LINEAR AMPLIFIER
    • 具有开关模式放大器和线性放大器的功率级
    • WO2016069366A4
    • 2016-08-11
    • PCT/US2015056846
    • 2015-10-22
    • CIRRUS LOGIC INC
    • KING ERIC JAMADI CHRISTOPHE JMELANSON JOHN L
    • H03F1/02H03F1/08H03F3/181H03F3/217
    • 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.
    • 用于向负载产生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工作的多个开关,以及用于产生包括 第一输出端子和第二输出端子,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,并根据 其中所述数字输入信号的位除了所述一个或多个最低有效位以顺序地施加来自所述多个开关配置的开关配置以选择性地激活或去激活所述多个开关中的每一个,以便从所述多个开关的输入源 功率级到负载。
    • 75. 发明申请
    • AMPLIFICATEUR AUDIO TRÈS HAUTE FIDÉLITÉ
    • 非常高清晰度音频放大器
    • WO2016001253A1
    • 2016-01-07
    • PCT/EP2015/064895
    • 2015-06-30
    • DEVIALET
    • CALMEL, Pierre-Emmanuel
    • H03F3/181H03F3/217
    • H03F1/02H03F3/181H03F3/183H03F3/217H03F3/45475H03F2200/03H03F2200/351H03F2200/391H03F2200/432H03F2200/534
    • Cet amplificateur audio (10) comporte : - une entrée (12) pour un signal audio à amplifier et une sortie (14) d'alimentation d'une charge (16) à partir du signal audio amplifié; - un générateur (18) de tension de référence de très haute linéarité et de faible impédance de sortie, propre à recevoir en entrée le signal audio à amplifier; - un générateur de courant (19) de puissance, comportant un générateur (21) de tension de puissance, dont la sortie est connectée à la sortie du générateur de tension de référence (18), au travers d'une impédance de couplage (30). L'impédance de couplage (30) comporte deux inductances de couplage (32A, 32B) montées en série entre la sortie du générateur de référence (18) et la sortie du générateur de tension de puissance (21) et une impédance d'atténuation (44) reliant un point milieu entre les deux inductances de couplage (32A, 32B) et un potentiel de référence. L'impédance d'atténuation (44) comporte une inductance d'atténuation (44A).
    • 该音频放大器(10)包括: - 用于待放大的音频信号的输入端(12)和用于从放大的音频信号馈送负载(16)的输出端(14); - 用于产生非常高线性度和低输出阻抗的电压的参考电压发生器(18),能够接收要被放大的音频信号作为输入; - 电力发生器(19),包括电源电压发生器(21),其输出端通过耦合阻抗(30)连接到参考电压发生器(18)的输出端。 耦合阻抗(30)包括串联安装在参考发生器(18)的输出端和电源电压发生器(21)的输出端之间的两个耦合电感(32A,32B)和连接中间电压的衰减阻抗(44) 两个耦合电感(32A,32B)和参考电位之间。 衰减阻抗(44)包括衰减电感(44A)。
    • 76. 发明申请
    • SWITCHED MODE CONVERTER WITH LOW-VOLTAGE LINEAR MODE
    • 具有低电压线性模式的开关模式转换器
    • WO2015171940A1
    • 2015-11-12
    • PCT/US2015/029765
    • 2015-05-07
    • CIRRUS LOGIC, INC.
    • AMADI, Christophe J.MARU, SiddharthKING, Eric J.
    • H03F1/02H03F3/181H03F3/217
    • H03F1/083G05F1/575H02M3/158H03F1/0277H03F3/181H03F3/217H03F3/2178H03F2200/03H03F2200/372
    • A power converter may include a power inductor, a plurality of switches arranged to sequentially operate in a plurality of switch configurations, an output for producing the output voltage, wherein a first switch is coupled to a first output terminal of the output and a second switch is coupled to a second output terminal of the output, and a linear amplifier coupled to the output. The controller may be configured to, in a linear amplifier mode of the power stage, enable the linear amplifier to transfer electrical energy from an input source of the power stage to the load, and in at least one mode of the power stage other than the linear amplifier mode, 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 the electrical energy from the input source to the load.
    • 功率转换器可以包括功率电感器,多个开关,被布置成顺序地以多个开关配置工作,用于产生输出电压的输出,其中第一开关耦合到输出端的第一输出端,​​第二开关 耦合到输出的第二输出端,以及耦合到输出的线性放大器。 控制器可以被配置为在功率级的线性放大器模式中使得线性放大器能够将电能从功率级的输入源传输到负载,并且在功率级的至少一种模式中,除了 线性放大器模式,顺序地从多个开关配置施加开关配置,以选择性地激活或去激活多个开关中的每一个,以将电能从输入源传输到负载。
    • 77. 发明申请
    • SWITCHED MODE AMPLIFIER WITH SINGLE-ENDED BUCK MODE
    • 具有单端BUCK模式的开关模式放大器
    • WO2015171935A1
    • 2015-11-12
    • PCT/US2015/029753
    • 2015-05-07
    • CIRRUS LOGIC, INC.
    • MARU, SiddharthKING, Eric, J.
    • H03F1/02H03F3/181H03F3/217
    • H03F1/083G05F1/575H02M3/158H03F1/0277H03F3/181H03F3/217H03F3/2178H03F2200/03H03F2200/372
    • A controller may be configured to sequentially apply switch configurations to a power converter to selectively activate or deactivate each of a plurality of switches of the power converter in accordance with a selected operational mode of the power converter, wherein the plurality of operational modes may include a single-ended buck mode for switching a polarity of the output voltage in which: during a charging phase, at least one of the plurality of switches is activated such that a power inductor is coupled between a first terminal of a power source and a particular one of the first output terminal and the second output terminal; and during a transfer phase, at least one of the plurality of switches is activated such that the power inductor is coupled between a second terminal of the power source and the particular one of the first output terminal and the second output terminal.
    • 控制器可以被配置为按照所选择的功率转换器的操作模式将切换配置顺序地应用于功率转换器以选择性地激活或去激活功率转换器的多个开关中的每一个,其中多个操作模式可以包括 用于切换输出电压的极性的单端降压模式,其中:在充电阶段期间,多个开关中的至少一个开关被激活,使得功率电感器耦合在电源的第一端子和特定一个开关 的第一输出端子和第二输出端子; 并且在传送阶段期间,多个开关中的至少一个被激活,使得功率电感器耦合在电源的第二端子和第一输出端子和第二输出端子中的特定的一个之间。