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17 条记录 (耗时 0.01 秒)

    Voltage-controlled push-pull current source
    1.
    发明授权
    Voltage-controlled push-pull current source 失效
    电压控制推挽电流源

    公开(公告)号：US4667146A

    公开(公告)日：1987-05-19

    申请号：US917624

    申请日：1986-10-10

    申请人： John L. Addis

    发明人： John L. Addis

    IPC分类号： H03F3/34 ,  G05F1/56 ,  H03F3/26 ,  H03F3/45 ,  H03K3/0231 ,  G05F3/20

    CPC分类号： H03F3/45197 ,  G05F1/561 ,  H03F3/26 ,  H03F3/45098 ,  H03K3/0231 ,  H03F2203/45146

    摘要： A voltage-controlled current source produces two output current signals whose difference is linearly related to an input voltage signal. The source includes an input buffer and a reference buffer each coupled separately to a current mirror and also coupled together across a current transmitting resistor. In response to the input voltage signal and current transmitted between the buffers, the current mirrors produce currents that differ in proportion to the difference between the input and reference voltage signals. The current mirrors also reproduce the differing currents in output paths as the output current signals. A fixed current source is coupled to each output path for drawing a fixed current from each path to linearize the current difference.

    摘要翻译： 压控电流源产生两个输出电流信号，其差值与输入电压信号线性相关。 源包括输入缓冲器和参考缓冲器，每个缓冲器和参考缓冲器分别耦合到电流镜，并且还跨过电流传输电阻耦合在一起。 响应于在缓冲器之间传输的输入电压信号和电流，电流镜产生与输入和参考电压信号之间的差异成比例的电流。 电流镜还会在输出路径中再现不同的电流作为输出电流信号。 固定电流源耦合到每个输出路径，用于从每个路径绘制固定电流以线性化电流差。

    Balanced output circuit and electronic apparatus utilizing the same
    3.
    发明授权
    Balanced output circuit and electronic apparatus utilizing the same 有权
    平衡输出电路和利用其的电子设备

    公开(公告)号：US07368982B2

    公开(公告)日：2008-05-06

    申请号：US10597908

    申请日：2005-08-24

    申请人： Taisuke Chida

    发明人： Taisuke Chida

    IPC分类号： H03F1/02

    CPC分类号： H03F3/45932 ,  H03F2200/421 ,  H03F2203/45138 ,  H03F2203/45146 ,  H03F2203/45212

    摘要： In a balanced output circuit, an input signal inputted thereto is provided as a first output signal thereof on one hand, and on the other hand the input signal is inputted to an inverting amplification circuit and is compared with a comparison voltage before the signal is outputted as a second output signal. Based on the comparison of the first and second output signals, the comparison voltage is controlled by a charging voltage of a capacitor such that the DC voltage of the second output signal is equalized to that of the first output signal. Thus, the DC offset voltage between the first output signal (non-inverted output signal) and the second output signal (inverted output signal) can be properly annihilated by a simple circuit.

    摘要翻译： 在平衡输出电路中，一方面输入输入信号作为第一输出信号，另一方面，将输入信号输入到反相放大电路，并将其与输出信号之前的比较电压进行比较 作为第二输出信号。 基于第一和第二输出信号的比较，比较电压由电容器的充电电压控制，使得第二输出信号的直流电压与第一输出信号的直流电压相等。 因此，第一输出信号（非反相输出信号）与第二输出信号（反相输出信号）之间的直流偏移电压可以通过简单的电路适当地消除。

    Balanced output circuit and electronic apparatus utilising the same
    5.
    发明申请
    Balanced output circuit and electronic apparatus utilising the same 有权
    平衡输出电路和利用其的电子设备

    公开(公告)号：US20070257734A1

    公开(公告)日：2007-11-08

    申请号：US10597908

    申请日：2005-08-24

    申请人： Taisuke Chida

    发明人： Taisuke Chida

    IPC分类号： H03F3/04

    CPC分类号： H03F3/45932 ,  H03F2200/421 ,  H03F2203/45138 ,  H03F2203/45146 ,  H03F2203/45212

    摘要： In a balanced output circuit, an input signal inputted thereto is provided as a first output signal thereof on one hand, and on the other hand the input signal is inputted to an inverting amplification circuit and is compared with a comparison voltage before the signal is outputted as a second output signal. Based on the comparison of the first and second output signals, the comparison voltage is controlled by a charging voltage of a capacitor such that the DC voltage of the second output signal is equalized to that of the first output signal. Thus, the DC offset voltage between the first output signal (non-inverted output signal) and the second output signal (inverted output signal) can be properly annihilated by a simple circuit.

    摘要翻译： 在平衡输出电路中，一方面输入输入信号作为第一输出信号，另一方面，将输入信号输入到反相放大电路，并将其与输出信号之前的比较电压进行比较 作为第二输出信号。 基于第一和第二输出信号的比较，比较电压由电容器的充电电压控制，使得第二输出信号的直流电压与第一输出信号的直流电压相等。 因此，第一输出信号（非反相输出信号）与第二输出信号（反相输出信号）之间的直流偏移电压可以通过简单的电路适当地消除。

    Fast recovery amplifier
    6.
    发明授权
    Fast recovery amplifier 失效
    快恢复放大器

    公开(公告)号：US4691174A

    公开(公告)日：1987-09-01

    申请号：US909437

    申请日：1986-09-19

    申请人： Theodore G. Nelson ,  Calvin D. Diller

    发明人： Theodore G. Nelson ,  Calvin D. Diller

    IPC分类号： H03F3/45 ,  H03G7/00

    CPC分类号： H03F3/45197 ,  H03F3/45103 ,  H03G7/002 ,  H03F2203/45146

    摘要： An amplifier includes first and second transistors having emitters connected to a first current source, feedback from the second transistor collector to its base being supplied through a base-emitter path of a first Darlington pair in series with a first diode. A second current source is connected to the first Darlington pair emitter. Third and fourth transistors have emitters connected to a third current source with feedback supplied from the fourth transistor collector to its base through a second Darlington pair and a second diode. The second Darlington pair emitter is connected to a fourth current source and resistively coupled to the first Darlington pair emitter. Constant currents are supplied to the second and fourth transistor collectors and an input voltage across the first and third transistor bases controls allocation of current between the first and second Darlington pair emitter-collector paths to produce a differential output current proportional to the input voltage when both Darlington pairs are on. When the input voltage is highly negative, the first Darlington pair turns off and a biasing circuit reverse biases the first diode to prevent the second transistor from saturating and substantially discharging capacitance at the base of the first Darlington pair. Thus, the first Darlington pair can rapidly turn on when the input voltage is subsequently driven more positive. When the input voltage is highly positive, another biasing circuit reverse biases the second diode to prevent the fourth transistor from saturating.

    摘要翻译： 放大器包括具有连接到第一电流源的发射极的第一和第二晶体管，从第二晶体管集电极到其基极的反馈通过与第一二极管串联的第一达林顿对的基极 - 发射极路径提供。 第二电流源连接到第一达林顿对发射极。 第三和第四晶体管具有连接到第三电流源的发射极，其具有通过第二达林顿对和第二二极管从第四晶体管集电极提供到其基极的反馈。 第二达林顿对发射器连接到第四电流源并且电阻耦合到第一达林顿对发射极。 恒定电流被提供给第二和第四晶体管集电极，并且跨越第一和第三晶体管基极的输入电压控制第一和第二达林顿对发射极 - 集电极路径之间的电流分配，以产生与输入电压成比例的差分输出电流 达林顿对。 当输入电压高负时，第一达林顿对关断，偏置电路反向偏置第一二极管，以防止第二晶体管在第一达林顿对的基极饱和并基本上放电电容。 因此，当输入电压随后驱动得更为正时，第一个达林顿对可以快速导通。 当输入电压为高电平时，另一个偏置电路反向偏置第二个二极管，以防止第四个晶体管饱和。