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    EARPHONE POWER AMPLIFIER, WORKING METHOD, AND MOBILE TERMINAL EQUIPMENT
    41.
    发明公开
    EARPHONE POWER AMPLIFIER, WORKING METHOD, AND MOBILE TERMINAL EQUIPMENT 审中-公开
    澳大利亚科罗拉多州立大学德克萨斯州立大学

    公开(公告)号：EP3139629A1

    公开(公告)日：2017-03-08

    申请号：EP16173554.3

    申请日：2012-10-01

    申请人： Huawei Device Co., Ltd.

    发明人： Zhen, Haitao ,  Yang, Wentao ,  Yang, Yongxiang ,  Yan, Xuxing

    IPC分类号： H04R3/00 ,  H03F3/68 ,  H04B1/18 ,  H01Q1/44 ,  H04R5/033 ,  H04W4/00

    CPC分类号： H04R5/04 ,  H01Q1/46 ,  H03F3/68 ,  H03F2200/03 ,  H04R5/033

    摘要： The present invention provides an earphone power amplifier, including a ground contact connected to a ground wire of an earphone, a left sound channel power amplifying circuit connected to a left sound channel of the earphone, and a right sound channel power amplifying circuit connected to a right sound channel of the earphone. The left sound channel power amplifying circuit includes a first operational amplifier and a first positive feedback exported from an input end of the first ferrite bead to an in-phase input end of the first operational amplifier, the right sound channel power amplifying circuit includes a second operational amplifier and a second positive feedback exported from the input end of the first ferrite bead to an in-phase input end of the second operational amplifier.

    摘要翻译： 本发明提供了一种耳机功率放大器，包括连接到耳机的接地线的接地触点，连接到耳机的左声道的左声道功率放大电路和连接到耳机的右声道功率放大电路 耳机右声道。 左声道功率放大电路包括从第一铁氧体磁珠的输入端输出到第一运算放大器的同相输入端的第一运算放大器和第一正反馈，右声道功率放大电路包括第二 运算放大器和从第一铁氧体磁珠的输入端输出到第二运算放大器的同相输入端的第二正反馈。

    Method and apparatus for supplying power to an amplifier
    43.
    发明公开
    Method and apparatus for supplying power to an amplifier 审中-公开
    VERFAHREN UND VORRICHTUNGFÜRDIE STROMVERSORGUNG EINESVERSTÄRKERS

    公开(公告)号：EP3070842A1

    公开(公告)日：2016-09-21

    申请号：EP15159312.6

    申请日：2015-03-17

    申请人： Nokia Technologies OY

    发明人： Nentwig, Markus

    IPC分类号： H03F3/24 ,  H03F3/68 ,  H03F1/02 ,  H03F3/195

    CPC分类号： H03F3/68 ,  H03F1/0255 ,  H03F1/0277 ,  H03F3/195 ,  H03F3/24 ,  H03F2200/111 ,  H03F2200/429 ,  H03F2200/511 ,  H03F2200/516

    摘要： There are disclosed various methods and apparatuses for providing power to a set of power amplifiers. In some embodiments the method comprises obtaining first transmission parameters associated with a first transmit signal, selecting one or more output voltage values on the basis of the first transmission parameters, controlling a multi-level power source to generate one or more output voltages on the basis of the one or more output voltage values, multiplexing based on the first transmit signal between two or more of the output voltages and a first supply voltage terminal of a first power amplifier, and amplifying the first transmit signal with the first power amplifier.

    摘要翻译： 公开了用于向一组功率放大器提供电力的各种方法和装置。 在一些实施例中，该方法包括获得与第一发射信号相关联的第一传输参数，基于第一传输参数来选择一个或多个输出电压值，控制多电平电源以在其基础上产生一个或多个输出电压 一个或多个输出电压值，基于两个或更多个输出电压之间的第一发射信号和第一功率放大器的第一电源电压端的复用，以及用第一功率放大器放大第一发射信号。

    Amplifier
    46.
    发明公开
    Amplifier 审中-公开
    放大器

    公开(公告)号：EP2999113A1

    公开(公告)日：2016-03-23

    申请号：EP14184900.0

    申请日：2014-09-16

    申请人： NXP B.V.

    发明人： Huijser, Jan Paulus Freerk

    IPC分类号： H03F1/02 ,  H03F3/181 ,  H03F3/189 ,  H03F3/68 ,  H02M3/00

    CPC分类号： H04B1/04 ,  H02M3/158 ,  H03F1/0205 ,  H03F1/0211 ,  H03F3/181 ,  H03F3/183 ,  H03F3/189 ,  H03F3/19 ,  H03F3/217 ,  H03F3/68 ,  H03F2200/03 ,  H03F2200/301 ,  H03F2200/451 ,  H03F2200/471 ,  H03F2200/481 ,  H04W88/02

    摘要： Mobile devices such as mobile phones include amplifiers for example audio and RF amplifiers which may consume a significant amount of the available power supplied by a battery. An amplifying system 100 for a mobile device is described the amplifying system comprising a current monitor 12 arranged between a first supply node and a second supply node and operable to monitor a current flow between the first and second supply nodes and to output a monitored current value; a peak current limiter 14 configured to limit an amplifier current to an amplifier to not exceed a maximum peak current value and coupled to a one of the first supply node and the second supply node; a controller coupled to the current monitor output and configured to control the peak current limiter. The amplifying system can dynamically manage the peak current available to the amplifier dependent on the load current being supplied by a battery.

    摘要翻译： 诸如移动电话之类的移动设备包括放大器，例如音频和RF放大器，其可能消耗由电池提供的大量可用功率。 描述了用于移动设备的放大系统100，放大系统包括布置在第一供电节点和第二供电节点之间的电流监测器12，其可操作用于监测第一和第二供电节点之间的电流流动并输出监测的电流值 ; 峰值电流限制器14，其被配置为将放大器的放大器电流限制为不超过最大峰值电流值并且耦合到第一电源节点和第二电源节点中的一个; 耦合到电流监测器输出并被配置为控制峰值电流限制器的控制器。 放大系统可根据电池提供的负载电流动态管理放大器可用的峰值电流。

    PROGRAMMABLY CONFIGURED SWITCHMODE AUDIO AMPLIFIER
    48.
    发明公开
    PROGRAMMABLY CONFIGURED SWITCHMODE AUDIO AMPLIFIER 审中-公开
    程式棒式开关转换开关

    公开(公告)号：EP2944024A2

    公开(公告)日：2015-11-18

    申请号：EP14703653.7

    申请日：2014-01-09

    申请人： QSC Audio Products, LLC

    发明人： QUILTER, Patrick H. ,  RODRIGUEZ, Manny

    IPC分类号： H03F1/02 ,  H03F3/217 ,  H03F3/68 ,  H03F3/72

    摘要： A multi-channel switchmode audio amplifier is configured by a programmed processor such that each channel drives separate loads, is connected in parallel or is configured in a bridge-tied mode as well as combinations thereof. In one embodiment, amplifier channels that are connected in parallel have power amplifiers that are driven with signals from a single modulator. A feedback circuit and error amplifier from one channel controls the modulated signal that is applied to each parallely connected amplifier channel. Current feedback circuits for parallely connected amplifier channels are eliminated by tightly controlling the timing of switching in the power amplifier output stages.

    摘要翻译： 多通道开关模式音频放大器由编程的处理器配置，使得每个通道驱动单独的负载，并联连接或被配置为桥接模式以及它们的组合。 在一个实施例中，并联的放大器通道具有由来自单个调制器的信号驱动的功率放大器。 来自一个通道的反馈电路和误差放大器控制施加到每个平行连接的放大器通道的调制信号。 通过紧密控制功率放大器输出级的切换时序，消除了并联连接的放大器通道的电流反馈电路。

    DISTRIBUTED DIGITALLY CONVERTIBLE RADIO (DDCR)
    50.
    发明公开
    DISTRIBUTED DIGITALLY CONVERTIBLE RADIO (DDCR) 审中-公开
    VERTEILTER DIGITAL UMWANDELBARER FUNK

    公开(公告)号：EP2929628A2

    公开(公告)日：2015-10-14

    申请号：EP13815161.8

    申请日：2013-12-03

    申请人： Telefonaktiebolaget L M Ericsson (publ)

    发明人： MCGOWAN, Neil ,  DA SILVEIRA, Marthinus Willem

    IPC分类号： H04B1/04 ,  H03F3/68 ,  H04B1/18 ,  H04W88/08

    CPC分类号： H04B1/38 ,  H03F1/34 ,  H03F3/24 ,  H04B1/0458 ,  H04B1/0483 ,  H04B1/18 ,  H04B2001/0433

    摘要： Embodiments of a hybrid unit that supports a configurable number of radio units for a base station in a cellular communications network and embodiments of Distributed Digitally Convertible Radio Units (DDCRUs) for use with the hybrid unit are disclosed. In one embodiment, a hybrid unit for a base station in a cellular communications network is provided. The hybrid unit includes an analog hybrid matrix. The analog hybrid matrix includes a number of feeder ports operative to connect to at least one radio unit and up to a number of radio units that are external to and separate from the hybrid unit. In one preferred embodiment, the radio unit(s) is(are) DDCRU(s). The analog hybrid matrix also includes a number of antenna ports operative to connect to at least one and up to a corresponding number of antennas of the base station.

    摘要翻译： 公开了支持用于蜂窝通信网络中的基站的可配置数量的无线电单元和用于混合单元的分布式数字可转换无线电单元（DDCRU）的实施例的混合单元的实施例。 在一个实施例中，提供了一种用于蜂窝通信网络中的基站的混合单元。 混合单元包括模拟混合矩阵。 模拟混合矩阵包括可操作以连接至少一个无线电单元的多个馈线端口，以及多达多个混合单元外部和与该混合单元分离的无线电单元。 在一个优选实施例中，无线电单元是一个（或多个）DDCRU。 模拟混合矩阵还包括可操作地连接到基站的至少一个和多达相应数量的天线的多个天线端口。