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7 条记录 (耗时 0.025 秒)

    Amplifier circuit
    1.
    发明授权
    Amplifier circuit 失效
    放大器电路

    公开(公告)号：US4540951A

    公开(公告)日：1985-09-10

    申请号：US523258

    申请日：1983-10-27

    申请人： Akio Ozawa ,  Susumu Sueyoshi ,  Keishi Sato ,  Kikuo Ishikawa ,  Kiyomi Yatsuhashi ,  Satoshi Ishii ,  Masamichi Yumino

    发明人： Akio Ozawa ,  Susumu Sueyoshi ,  Keishi Sato ,  Kikuo Ishikawa ,  Kiyomi Yatsuhashi ,  Satoshi Ishii ,  Masamichi Yumino

    IPC分类号： H03F1/32 ,  H03F1/34 ,  H03F3/18 ,  H03F3/20 ,  H03F3/26 ,  H03F3/30

    CPC分类号： H03F3/26 ,  H03F1/32 ,  H03F1/3217 ,  H03F1/34 ,  H03F3/30 ,  H03F3/3076

    摘要： A push-pull amplifer circuit using bipolar transistors in which non-linear distortion caused by the base-emitter voltages of the amplifying transistors of the circuit is eliminated without the use of negative AC feedback and in which variations in a DC output level at the output terminal of the amplifier are detected and fed back to the input side of the amplifier whereby the stability of the circuit at very low frequencies is remarkably improved. A first amplifier stage includes a first transistor having a base to which an input signal is applied and a second transistor the base of which is coupled to an output of the first transistor with the second transistor being of the opposite conductivity type of the first transistor. A current mirror circuit supplies currents to the first and second transistors with the currents thus supplied having a constant ratio. A second amplifying stage is provided having the same construction. A load is coupled to be driven by the current flowing through the first transistor in the first amplifying stage and by the corresponding transistor in the second amplifying stage. Variations in the output of the circuit are detected to provide a DC feedback voltage which is coupled back to emitter circuits in the input stages of the amplifier.

    摘要翻译： 使用双极晶体管的推挽放大电路，其中消除了由电路的放大晶体管的基极 - 发射极电压引起的非线性失真，而不使用负的AC反馈，并且其中输出端的DC输出电平的变化 检测放大器的端子并将其反馈到放大器的输入侧，从而显着提高电路在非常低频率下的稳定性。 第一放大器级包括第一晶体管，其具有施加输入信号的基极和第二晶体管，第二晶体管的基极耦合到第一晶体管的输出，第二晶体管具有与第一晶体管相反的导电类型。 电流镜电路以这样提供的具有恒定比例的电流向第一和第二晶体管提供电流。 提供具有相同结构的第二放大级。 负载被耦合以由流过第一放大级中的第一晶体管的电流和第二放大级中的相应晶体管驱动。 检测电路输出的变化以提供DC反馈电压，该反馈电压被耦合回到放大器的输入级中的发射极电路。

    Amplifier circuit
    2.
    发明授权
    Amplifier circuit 失效
    放大器电路

    公开(公告)号：US4433305A

    公开(公告)日：1984-02-21

    申请号：US188792

    申请日：1980-09-19

    申请人： Akio Ozawa ,  Susumu Sueyoshi ,  Keishi Sato ,  Kikuo Ishikawa ,  Kiyomi Yatsuhashi ,  Satoshi Ishii ,  Masamichi Yumino

    发明人： Akio Ozawa ,  Susumu Sueyoshi ,  Keishi Sato ,  Kikuo Ishikawa ,  Kiyomi Yatsuhashi ,  Satoshi Ishii ,  Masamichi Yumino

    IPC分类号： H03F1/32 ,  H03F1/34 ,  H03F3/18 ,  H03F3/20 ,  H03F3/26 ,  H03F3/30 ,  H03F3/04

    CPC分类号： H03F3/26 ,  H03F1/32 ,  H03F1/3217 ,  H03F1/34 ,  H03F3/30 ,  H03F3/3076

    摘要： A push-pull amplifier circuit using bipolar transistors in which non-linear distortion caused by the base-emitter voltages of the amplifying transistors of the circuit is eliminated without the use of negative AC feedback and in which variations in a DC output level at the output terminal of the amplifier are detected and fed back to the input side of the amplifier whereby the stability of the circuit at very low frequencies is remarkably improved. A first amplifier stage includes a first transistor having a base to which an input signal is applied and a second transistor the base of which is coupled to an output of the first transistor with the second transistor being of the opposite conductivity type to the first transistor. A current mirror circuit supplies currents to the first and second transistors with the currents thus supplied having a constant ratio. A second amplifying stage is provided having the same construction. A load is coupled to be driven by the current flowing through the first transistor in the first amplifying stage and by the corresponding transistor in the second amplifying stage. Variations in the output of the circuit are detected to provide a DC feedback voltage which is coupled back to emitter circuits in the input stages of the amplifier.

    摘要翻译： 使用双极晶体管的推挽放大器电路，其中消除由电路的放大晶体管的基极 - 发射极电压引起的非线性失真，而不使用负的AC反馈，并且其中输出端的DC输出电平的变化 检测放大器的端子并将其反馈到放大器的输入侧，从而显着提高电路在非常低频率下的稳定性。 第一放大器级包括第一晶体管，其具有施加输入信号的基极和第二晶体管，第二晶体管的基极耦合到第一晶体管的输出，第二晶体管具有与第一晶体管相反的导电类型。 电流镜电路以这样提供的具有恒定比例的电流向第一和第二晶体管提供电流。 提供具有相同结构的第二放大级。 负载被耦合以由流过第一放大级中的第一晶体管的电流和第二放大级中的相应晶体管驱动。 检测电路输出的变化以提供DC反馈电压，该反馈电压被耦合回到放大器的输入级中的发射极电路。

    Conveyor belt and method of making the same
    4.
    发明授权
    Conveyor belt and method of making the same 有权
    输送带及其制作方法

    公开(公告)号：US06235133B1

    公开(公告)日：2001-05-22

    申请号：US09177847

    申请日：1998-10-22

    申请人： Keishi Sato

    发明人： Keishi Sato

    IPC分类号： B32B700

    CPC分类号： B29C43/265 ,  B29C33/68 ,  B29C43/206 ,  B29C43/22 ,  B29D29/06 ,  B29K2021/00 ,  B29L2031/7092 ,  B32B37/26 ,  Y10T428/249955 ,  Y10T428/249958 ,  Y10T428/249991

    摘要： A method of manufacturing a conveyor belt having an elongate body made of uncured rubber and/or synthetic rubber. A polymeric parting material is placed adjacent to the upper and lower surfaces of the body, and heated platens are applied to the upper and lower surfaces of the body (i.e. belt material) to soften the adjacent upper and lower layer portions of the belt. This causes the softened belt material to flow into interstitial openings in the parting material. The resulting belt has the parting material squeezed into a thinner layer and embedded in the adjacent surface portions of the body of the belt. This provides a substantially uniform and reflectively soft texture surface.

    摘要翻译： 一种制造具有由未固化橡胶和/或合成橡胶制成的细长体的传送带的方法。 将聚合物分离材料放置在身体的上表面和下表面附近，并且将加热的压板施加到主体（即，带材料）的上表面和下表面，以软化带的相邻上层和下层部分。 这使得软化的带材料流入分型材料的间隙。 所得到的带具有分开的材料被挤压成较薄的层并且嵌入在带的主体的相邻表面部分中。 这提供了基本均匀和反射柔软的纹理表面。