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    Processing amplifier
    3.
    发明专利
    Processing amplifier 有权
    加工放大器

    公开(公告)号：JP2006295365A

    公开(公告)日：2006-10-26

    申请号：JP2005110646

    申请日：2005-04-07

    申请人： Nec Electronics Corp ,  Necエレクトロニクス株式会社

    发明人： NISHIMURA KOICHI ,  SHIMATANI ATSUSHI ,  ICHIMURA MOTOYASU

    IPC分类号： H03F3/45 ,  H03F3/16 ,  H03F3/34

    CPC分类号： H03F3/45192 ,  G09G3/3688 ,  H03F3/3022 ,  H03F3/45345 ,  H03F3/45744 ,  H03F2203/30081 ,  H03F2203/30114 ,  H03F2203/45212 ,  H03F2203/45366 ,  H03F2203/45512 ,  H03F2203/45648 ,  H03F2203/45681 ,  H03F2203/45732

    摘要： PROBLEM TO BE SOLVED: To provide a processing amplifier of high precision which has a low offset voltage by a simple circuit configuration.
    SOLUTION: A differential amplifier comprises an input stage circuit, a first current mirror circuit, a second current mirror circuit, an output stage circuit, an operation point setting circuit, and a floating constant current source. The input stage circuit comprises a first differential pair and a second differential pair which are in a complementary relation. The first current mirror circuit is connected to the first differential pair, becoming its active load. The second current mirror circuit is connected to the second differential pair, becoming its active load. The output stage circuit comprises a pair of output transistors that is serially connected between a positive voltage source and a negative voltage source. The floating constant current source is connected between the input terminal of the first current mirror circuit and that of the second current mirror circuit, supplying a constant current. The first and second current mirror circuits superpose the output of the input stage circuit on the current corresponding to the constant current supplied by the floating constant current source, which is supplied to the operation point setting circuit.
    COPYRIGHT: (C)2007,JPO&INPIT

    摘要翻译： 要解决的问题：通过简单的电路配置来提供具有低失调电压的高精度的处理放大器。 解决方案：差分放大器包括输入级电路，第一电流镜电路，第二电流镜电路，输出级电路，操作点设置电路和浮置恒流源。 输入级电路包括互补关系的第一差分对和第二差分对。 第一电流镜电路连接到第一差分对，成为其有效负载。 第二电流镜电路连接到第二差分对，成为其有效负载。 输出级电路包括串联连接在正电压源和负电压源之间的一对输出晶体管。 浮置恒流源连接在第一电流镜电路的输入端和第二电流镜电路的输入端之间，供给恒定电流。 第一和第二电流镜电路将输入级电路的输出叠加在与提供给操作点设置电路的浮动恒流源提供的恒定电流相对应的电流上。 版权所有（C）2007，JPO＆INPIT

    Output buffer with improved output deviation and source driver for flat panel display having the output buffer
    5.
    发明专利
    Output buffer with improved output deviation and source driver for flat panel display having the output buffer 有权
    具有改进的输出缓冲器的输出缓冲器和用于具有输出缓冲器的平板显示器的源驱动器

    公开(公告)号：JP2007189699A

    公开(公告)日：2007-07-26

    申请号：JP2007004775

    申请日：2007-01-12

    申请人： Samsung Electronics Co Ltd ,  三星電子株式会社Samsung Electronics Co.,Ltd.

    发明人： JANG DONG-RYUL ,  LEE SOO-CHEOL

    IPC分类号： H03F3/45 ,  G02F1/133 ,  G02F1/1345 ,  G09G3/20 ,  G09G3/36

    CPC分类号： H03F3/4521 ,  G09G3/3648 ,  G09G3/3688 ,  H03F3/3001 ,  H03F3/45183 ,  H03F2203/30021 ,  H03F2203/30081 ,  H03F2203/30114 ,  H03F2203/45366 ,  H03F2203/45684

    摘要： PROBLEM TO BE SOLVED: To provide an output buffer with improved output deviation and a source driver for flat panel display having the same.
    SOLUTION: The present invention relates to an output buffer including a first input terminal to which a first differential input signal is applied, a second input terminal to which a second differential input signal is applied, an output terminal that generates an output signal based on the second differential input signal as the first input signal, a first power supply terminal to which a first power supply voltage is applied, a second power supply terminal to which a second power supply voltage is applied, and an amplification unit that amplifies a difference between the first differential input signal and the second differential input signal, pulls up the output signal to the first power supply voltage or pulls down the output signal to the second power supply voltage, and includes a plurality of transistors.
    COPYRIGHT: (C)2007,JPO&INPIT

    摘要翻译： 要解决的问题：提供具有改进的输出偏差的输出缓冲器和具有其的平板显示器的源极驱动器。 解决方案：本发明涉及一种输出缓冲器，包括施加第一差分输入信号的第一输入端子，施加第二差分输入信号的第二输入端子，产生输出信号的输出端子 基于作为第一输入信号的第二差分输入信号，施加第一电源电压的第一电源端子，施加第二电源电压的第二电源端子，以及放大单元 第一差分输入信号和第二差分输入信号之间的差异将输出信号拉至第一电源电压或将输出信号拉低至第二电源电压，并且包括多个晶体管。 版权所有（C）2007，JPO＆INPIT