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10 条记录 (耗时 0.19 秒)

    Switching amplifier
    1.
    发明公开
    Switching amplifier 有权
    开关放大器

    公开(公告)号：EP1713175A1

    公开(公告)日：2006-10-18

    申请号：EP06007862.3

    申请日：2006-04-13

    申请人： SHARP KABUSHIKI KAISHA

    发明人： Kishida, Masahiro

    IPC分类号： H03F3/217

    CPC分类号： H03F3/217 ,  H03F2200/03 ,  H03F2200/331 ,  H03M3/37 ,  H03M3/502

    摘要： A switching amplifier of the present invention includes a delta-sigma modulation circuit for processing an input signal by delta-sigma modulation to output a one-bit signal, a delay circuit for delaying the one-bit signal, and a pulse amplifier having a switching device that switches the switching device according to the signal outputted from the delay circuit to perform pulse amplification of the signal outputted from the delay section. The delay time of the delay circuit is variable. With this configuration, enhanced performance is obtained without changing the sampling frequency of the delta-sigma modulation circuit.

    摘要翻译： 本发明的开关放大器包括用于通过德耳塔西格玛调制来处理输入信号以输出1比特信号的Δ-Σ调制电路，用于延迟1比特信号的延迟电路以及具有开关的脉冲放大器 装置，其根据从延迟电路输出的信号切换开关装置，以对延迟部分输出的信号执行脉冲放大。 延迟电路的延迟时间是可变的。 利用这种配置，在不改变Δ-Σ调制电路的采样频率的情况下获得增强的性能。

    A two-terminal nonlinear device
    4.
    发明公开
    A two-terminal nonlinear device 失效
    Nicht-lineare Vorrichtung mit zwei Elektroden。

    公开(公告)号：EP0610082A3

    公开(公告)日：1995-11-22

    申请号：EP94300807.8

    申请日：1994-02-03

    申请人： SHARP KABUSHIKI KAISHA

    发明人： Yoshimizu, Toshiyuki ,  Kishida, Masahiro ,  Fukuyama, Toshiaki ,  Ishimoto, Yoshihisa ,  Seike, Takeshi ,  Matoba, Masakazu

    IPC分类号： H01L45/00

    CPC分类号： H01L45/00

    摘要： A two-terminal nonlinear device according to the present invention includes a lower electrode (2) of a thin Ta film doped with nitrogen which is formed on a substrate (6), an anodized oxide film (3) formed by anodizing a surface of the lower electrode (2), and an upper electrode (4) of a metal thin film which is formed on the anodized oxide film (3), wherein the thin Ta film includes a structure in which first portions and second portions are alternately deposited, the first portions containing a different amount of nitrogen from that contained in the second portions.

    摘要翻译： 根据本发明的两端非线性器件包括形成在衬底（6）上的掺有氮的薄的Ta膜的下电极（2），阳极氧化的氧化物膜（3） 和形成在阳极化氧化膜（3）上的金属薄膜的上电极（4），其中，薄Ta膜包括交替沉积第一部分和第二部分的结构， 第一部分含有与第二部分中包含的氮不同的氮。

    Digital switching amplifier
    6.
    发明公开
    Digital switching amplifier 有权
    数字开关放大器

    公开(公告)号：EP1158663A2

    公开(公告)日：2001-11-28

    申请号：EP01304359.1

    申请日：2001-05-16

    申请人： SHARP KABUSHIKI KAISHA

    发明人： Kishida, Masahiro

    IPC分类号： H03F3/217

    CPC分类号： H03F3/217 ,  H03F2200/331 ,  H03M3/356 ,  H03M3/43 ,  H03M3/438

    摘要： A digital switching amplifier in accordance with the present invention is provided with attenuation sections that attenuate respective 1-bit signals that have been subjected to the power amplification, and an offset voltage addition and adjustment section that adds adjustment voltages to output signals of the respective attenuation sections so that a D.C. voltage level difference between negative feedback signals which return to a delta sigma modulation circuit becomes substantially zero. This allows to ensurely provide a digital switching amplifier that can avoid that the gain with respect to positive and negative input signals change and easily avoid that the noise occurs in the lower frequency band due to an offset voltage.

    A two-terminal nonlinear device
    7.
    发明公开
    A two-terminal nonlinear device 失效
    非线性器件具有两个电极。

    公开(公告)号：EP0610082A2

    公开(公告)日：1994-08-10

    申请号：EP94300807.8

    申请日：1994-02-03

    申请人： SHARP KABUSHIKI KAISHA

    发明人： Yoshimizu, Toshiyuki ,  Kishida, Masahiro ,  Fukuyama, Toshiaki ,  Ishimoto, Yoshihisa ,  Seike, Takeshi ,  Matoba, Masakazu

    IPC分类号： H01L45/00

    CPC分类号： H01L45/00

    摘要： A two-terminal nonlinear device according to the present invention includes a lower electrode (2) of a thin Ta film doped with nitrogen which is formed on a substrate (6), an anodized oxide film (3) formed by anodizing a surface of the lower electrode (2), and an upper electrode (4) of a metal thin film which is formed on the anodized oxide film (3), wherein the thin Ta film includes a structure in which first portions and second portions are alternately deposited, the first portions containing a different amount of nitrogen from that contained in the second portions.

    Switching amplifier
    8.
    发明公开
    Switching amplifier 审中-公开
    开关放大器

    公开(公告)号：EP1804374A2

    公开(公告)日：2007-07-04

    申请号：EP06015603.1

    申请日：2006-07-26

    申请人： SHARP KABUSHIKI KAISHA

    发明人： Kishida, Masahiro

    IPC分类号： H03F3/217 ,  H03F3/21 ,  H03F3/72

    CPC分类号： H03F3/2175 ,  H03F3/211 ,  H03F3/72 ,  H03F2200/03 ,  H03F2200/331 ,  H03F2200/345 ,  H03F2200/351 ,  H03F2200/372 ,  H03F2200/459 ,  H03F2200/507 ,  H03F2203/7227 ,  H03F2203/7236 ,  H03G1/0088 ,  H03G3/001

    摘要： A switching amplifier of the invention boasts of an enhanced SN ratio in its output and an increased amplitude limit value in its input signal. The switching amplifier has a quantized signal generating section (3) that converts an input signal to generate a quantized signal in the form of a PDM or PWM signal and a constant-current-outputting current amplification section (11) that current-amplifies the quantized signal outputted from the quantized signal generating section (3). The quantized signal generating section and the current amplification section are formed by the same process.

    摘要翻译： 本发明的开关放大器在其输出中具有增强的SN比并且在其输入信号中具有增加的幅度限制值。 开关放大器具有：量化信号生成部（3），其对输入信号进行变换而生成PDM或PWM信号形式的量化信号;以及恒流输出电流放大部（11），其对量子化后的信号进行电流放大 信号从量化信号生成部分（3）输出。 量化信号生成部分和电流放大部分通过相同的处理形成。

    Digital switching amplifier
    9.
    发明公开
    Digital switching amplifier 有权
    Digitalschaltverstärker

    公开(公告)号：EP1158663A3

    公开(公告)日：2004-05-26

    申请号：EP01304359.1

    申请日：2001-05-16

    申请人： SHARP KABUSHIKI KAISHA

    发明人： Kishida, Masahiro

    IPC分类号： H03F3/217

    CPC分类号： H03F3/217 ,  H03F2200/331 ,  H03M3/356 ,  H03M3/43 ,  H03M3/438

    摘要： A digital switching amplifier in accordance with the present invention is provided with attenuation sections that attenuate respective 1-bit signals that have been subjected to the power amplification, and an offset voltage addition and adjustment section that adds adjustment voltages to output signals of the respective attenuation sections so that a D.C. voltage level difference between negative feedback signals which return to a delta sigma modulation circuit becomes substantially zero. This allows to ensurely provide a digital switching amplifier that can avoid that the gain with respect to positive and negative input signals change and easily avoid that the noise occurs in the lower frequency band due to an offset voltage.

    摘要翻译： 根据本发明的数字开关放大器设置有衰减已经经过功率放大的各个1位信号的衰减部分，以及将调整电压加到相应衰减的输出信号上的偏移电压相加和调整部分 使得返回到Δ-Σ调制电路的负反馈信号之间的直流电压电平差基本为零。 这允许确保提供数字开关放大器，其可以避免相对于正和负输入信号的增益改变并且容易避免由于偏移电压而在较低频带中发生噪声。