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    • 1. 发明授权
    • Differential amplifier
    • 差分放大器
    • US4626795A
    • 1986-12-02
    • US773188
    • 1985-09-06
    • Tatsuo TanakaNana ShigematsuKazushige Koshika
    • Tatsuo TanakaNana ShigematsuKazushige Koshika
    • H03F3/343H03F3/34H03F3/45
    • H03F3/45071
    • First and second current mirror circuits are provided to the first and second amplifying transistors, respectively. The output current paths of current mirror circuits constitute output current terminals, respectively, and the reference input current paths are connected to the collectors of the first and second transistors, respectively. The first current mirror circuit comprises third and fourth transistors and the second current mirror circuit comprises fifth and sixth transistors. The base of the third transistor of the first current mirror circuit and the base of the fifth transistor of the second current mirror circuit are connected to first and second reference potentials, respectively. The base of the fourth transistor of the first circuit and the base of the sixth transistor of the second circuit are connected to the collectors of the first and second transistors, respectively.
    • 第一和第二电流镜电路分别提供给第一和第二放大晶体管。 电流镜电路的输出电流路径分别构成输出电流端子,参考输入电流路径分别连接到第一和第二晶体管的集电极。 第一电流镜电路包括第三和第四晶体管,第二电流镜电路包括第五和第六晶体管。 第一电流镜电路的第三晶体管的基极和第二电流镜电路的第五晶体管的基极分别连接到第一和第二参考电位。 第一电路的第四晶体管的基极和第二电路的第六晶体管的基极分别连接到第一和第二晶体管的集电极。
    • 6. 发明申请
    • Vibration-Isolating Support Device
    • 振动隔离支撑装置
    • US20080296816A1
    • 2008-12-04
    • US11718121
    • 2004-10-29
    • Tatsuo TanakaMitsuo Kuzukawa
    • Tatsuo TanakaMitsuo Kuzukawa
    • F16F13/00
    • F16F13/20
    • An antivibration mounting apparatus (30) is provided with a case (31) fixed to a turning table (13) and a stud (33) fixed to a cab (20). An elastic body (34) is provided between the case (31) and the stud (33), and relative displacement of the stud (33) to the case (31) in the diameter direction is suppressed by the elastic body (34). On the lower part of the case (31), an attenuating mechanism (40) having an attenuating liquid (43) stored in a liquid chamber (42) and an attenuating member (41) fixed by the stud (33) is provided. Furthermore, on the upper part of the case (31), an air spring (50) supported by the stud (33) or the case (31) is provided, and a load transmitted from the cab (20) to the stud (33) in the shaft direction is supported by the air spring (50).
    • 防振安装装置(30)设置有固定到转台(13)的壳体(31)和固定到驾驶室(20)的螺柱(33)。 弹性体(34)设置在壳体(31)和螺栓(33)之间,并且通过弹性体(34)抑制螺柱(33)与壳体(31)在直径方向上的相对位移。 在壳体(31)的下部设置有具有存储在液体室(42)中的衰减液体(43)和由螺柱(33)固定的衰减构件(41)的衰减机构(40)。 此外,在壳体31的上部,设置有由螺柱(33)或壳体(31)支撑的空气弹簧(50),并且从驾驶室(20)传递到螺栓(33)的负载 )在轴向上由空气弹簧(50)支撑。