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17 条记录 (耗时 0.009 秒)

    Audio amplification apparatus
    2.
    发明公开
    Audio amplification apparatus 审中-公开
    Audioverstärkungsvorrichtung

    公开(公告)号：EP2698971A1

    公开(公告)日：2014-02-19

    申请号：EP13180604.4

    申请日：2013-08-15

    申请人： Britton, Colin

    发明人： Britton, Colin

    IPC分类号： H04M1/215

    CPC分类号： H03F21/00 ,  H03F3/181 ,  H03F2200/03 ,  H04R1/46 ,  H04R17/02

    摘要： An audio amplification apparatus for attachment to a device having a loudspeaker. The apparatus (10) comprises a vibration transducer (30) for attachment to the device having the loudspeaker (20), an amplifier (40) coupled to the vibration transducer (30) for amplifying an electrical signal representing at least in part an audible output of the loudspeaker (24), and an audio output port (52) operably coupled to the amplifier, thereby permitting connection to an audio output device (60).

    摘要翻译： 一种用于附接到具有扬声器的装置的音频放大装置。 装置（10）包括用于连接到具有扬声器（20）的装置的振动传感器（30），耦合到振动传感器（30）的放大器（40），用于放大至少部分表示声音输出的电信号 和音频输出端口（52），可操作地耦合到放大器，从而允许连接到音频输出设备（60）。

    Compact high voltage power supply
    7.
    发明公开
    Compact high voltage power supply 失效
    紧凑型高压电源

    公开(公告)号：EP0434048A3

    公开(公告)日：1992-04-01

    申请号：EP90124899.7

    申请日：1990-12-20

    申请人： Hughes Aircraft Company

    发明人： Harvey, Robin J.

    IPC分类号： H02M9/02 ,  H03K3/53

    CPC分类号： H03K17/52 ,  H03F21/00 ,  H03K3/53

    摘要： A high voltage power supply having energy storage, charging and switching elements and using an interruptible switch as the switching element for efficient, compact and safe operation. In a specific embodiment, the interruptible switch is implemented with at least one cold cathode grid-controlled, crossed field plasma switch and associated control circuit. The charging element is a Marx bank which can be capacitive or inductive. A single control circuit may be used in a master-slave configuration for the capacitive and inductive Marx bank implementations. A pulse forming network can be used in connection with a cold cathode grid-controlled, crossed field plasma switch to provide a regulator for the power supply. In the inductive embodiment, the field plasma switch may include plural switching elements in a single envelope, each switching element including a cathode, a control grid and an anode, the cathode of at least one switching element being the anode of the next switching element and so on. A current amplifier and voltage regulator is implemented with a cold cathode grid-controlled, crossed field plasma switch having a cathode, an anode and a control grid therebetween.

    Amplifying device
    8.
    发明公开
    Amplifying device 有权
    放大器

    公开(公告)号：EP2701305A1

    公开(公告)日：2014-02-26

    申请号：EP13180175.5

    申请日：2013-08-13

    申请人： Onkyo Corporation

    发明人： Kawaguchi, Tsuyoshi

    IPC分类号： H03F3/217 ,  H03F3/68 ,  H03F3/72 ,  H04S3/00

    CPC分类号： H03F21/00 ,  H03F3/217 ,  H03F3/68 ,  H03F3/72 ,  H04S3/008

    摘要： An amplifying device is provided that reduces power consumption and quickly starts amplification of an audio signal of a channel to be used. A control section 17 inputs a control signal for instructing operation or standby into post-amplifying sections 11b and 12b, and inputs a control signal for instructing standby to post-amplifying sections 13b and 14b. In the post-amplifying section 11b, when the control signal for instructing standby or operation is input from the control section 17, a modulation circuit 52 modulates the analog audio signal into a switching signal. An output stage circuit 54 amplifies the output signal. When the control signal for instructing the operation is input from the control section 17, a driving circuit 53 drives the output stage circuit 54 in response to the switching signal, and stops the driving of the output stage circuit 54 when the control signal for instructing standby is input.

    摘要翻译： 提供了一种放大装置，其降低了功耗，并且快速开始放大要使用的频道的音频信号。 控制部分17将用于指示操作或待机的控制信号输入到后置放大部分11b和12b，并将用于指示待机的控制信号输入到后置放大部分13b和14b。 在后放大部分11b中，当从控制部分17输入用于指示待机或操作的控制信号时，调制电路52将模拟音频信号调制为切换信号。 输出级电路54放大输出信号。 当从控制部17输入用于指示操作的控制信号时，驱动电路53响应于切换信号来驱动输出级电路54，并且当用于指示待机的控制信号时停止输出级电路54的驱动 被输入。

    RF power amplifier with spectrally grouped nanosized switches
    10.
    发明公开
    RF power amplifier with spectrally grouped nanosized switches 有权
    RF-Leistungsverstärkermit spektral gruppierten Schaltern imNanogrößenbereich

    公开(公告)号：EP2312749A1

    公开(公告)日：2011-04-20

    申请号：EP09290788.0

    申请日：2009-10-15

    申请人： Alcatel Lucent

    发明人： Templ, Wolfgang ,  Wiegner, Dirk

    IPC分类号： H03F3/191 ,  H03F13/00

    CPC分类号： H03F13/00 ,  H03F3/191 ,  H03F21/00

    摘要： The invention describes a radio frequency (=RF) power amplifier (20), comprising
    - a coupling array (1) comprising a plurality of nano-sized coupling elements (2; 41; 51),
    wherein the coupling elements (2; 41; 51) are grouped into a number N of sub-arrays (SA 1 ...SA N ), with each sub-array (SA 1 ...SA N ) exhibiting
    • a specific resonance frequency (f 1 ...f N ) and
    • a specific attenuation

    of a mechanical self-oscillation of its coupling elements (2; 41; 51),
    wherein for the coupling elements (2; 41; 51) of each sub array (SA 1 ...SA N ), there is a stimulating means for stimulating a mechanical self-oscillation,
    - and a signal processing unit (22) for controlling the stimulating means with stimulating pulses having a pulse form and timing calculated by the signal processing unit (22) based on an evaluation of the spectral components of an RF signal to be amplified, namely the amplitudes (C 1 ...C N ) and phases (φ 1 ...φ N ) at the frequencies (f 1 ...f N ) corresponding to said specific resonance frequencies. The inventive RF power amplifier provides a high efficiency and a high linearity, in particular at high RF frequencies.

    摘要翻译： 本发明描述了一种射频（= RF）功率放大器（20），包括：包括多个纳米尺寸的耦合元件（2; 41; 51）的耦合阵列（1），其中耦合元件（2; 41; 51） 51）分组为N个子阵列（SA 1 ... SA N），其中每个子阵列（SA 1 ... SA N）表现出特定谐振频率（f 1 ... f N）和其耦合元件（2; 41; 51）的机械自振荡的特定衰减，其中对于每个子阵列（SA 1 ... SA N的耦合元件（2; 41; 51） ），具有用于刺激机械自振荡的刺激装置，以及信号处理单元（22），用于通过刺激具有由信号处理单元（22）计算的脉冲形式和定时的脉冲来控制刺激装置，基于 评估要放大的RF信号的频谱分量，即在频率（f 1 ... f N）对应的幅度（C 1 ... CN）和相位（Æ1 ...ÆN） 到所述特定谐振频率。 本发明的RF功率放大器提供高效率和高线性度，特别是在高RF频率下。