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    • 22. 发明专利
    • TRANSISTOR CIRCUIT
    • JPS60182216A
    • 1985-09-17
    • JP3757984
    • 1984-02-29
    • NIPPON TELEGRAPH & TELEPHONETOSHIBA KK
    • NAKAGAWA KAZUOKAWAKAMI YOUICHINAKAJIMA HIROSHIOSABE RIYOUJI
    • H03K17/10
    • PURPOSE:To eliminate unnecessary losses by connecting a Zener diode for setting applied maximum voltage connected in series with a transistor (TR) of the pre-stage and a diode for blocking reverse flow of control signal to eliminate the need for a current disabling the control. CONSTITUTION:When a control signal is applied between terminal 13 and 12, a collector current equivalent to a hFE multiple of a CD current amplification factor of the base current flows. When a TR12 is at an active region, the base current of a TR11 is applied via the Zener diode CD and the TR11 is operated so that the collector current equivalent to hFE times is equal to the collector current of the TR12. In this case, the level of the diode CD12 reaches a potential of reverse blocking and a base current of the TR11 from a terminal 13 is not applied. When the TR12 is in the saturated region, the base current of the TR11 is fed to the TR11 from the terminal 13. When it is necessary to decrease the collector-emitter voltage of the TR11, the diode CD11 is cut off by increasing a drive signal through the diode CD12 and the collector current is made depending on the level of the terminal 13.
    • 25. 发明专利
    • MONITORING AND CONTROLLING DEVICE
    • JP2000089801A
    • 2000-03-31
    • JP25661298
    • 1998-09-10
    • TOSHIBA CORP
    • KANDA MASAENAKAGAWA KAZUO
    • G05B7/02G05B9/02G05B23/02
    • PROBLEM TO BE SOLVED: To detect a semi-abnormal state of detection end/operation end. SOLUTION: This monitoring and controlling device is provided with an abnormality detection part 11 provided with a plant model part 21 constructing a characteristic model for approximating the characteristics of an object plant beforehand and an output comparison part 22 for receiving a manipulated variable and outputting abnormality when a difference between a plant model output outputted from the plant model part and the controlled variable of the object plant exceeds a prescribed threshold and the state of exceeding the threshold continues for a prescribed time, an analysis command part 12 for setting an adjustment control part from an automatic mode to a manual mode, holding the manipulated variable of the object plant and on the other hand, outputting a command required for abnormality restoration at the time of receiving the result of a semi-abnormal state from the abnormality detection part 11 and a man-machine interface part 13 for receiving the command from the analysis command part 12 and issuing the alarm of abnormality generation and guidance while holding the manipulated variable.
    • 26. 发明专利
    • Piezoelectric displacement device
    • 压电位移装置
    • JPS60193387A
    • 1985-10-01
    • JP4825284
    • 1984-03-15
    • Nippon Telegr & Teleph Corp Toshiba Corp
    • NAKAGAWA KAZUOKAWAKAMI YOUICHIYOKOYAMA KATSUNORITANUMA CHIAKIYOKOMIZO YUUJI
    • H01L41/083H01L41/09H02N2/00
    • H02N2/02
    • PURPOSE:To enhance the sensitivity of displacement as well as to contrive miniaturization of the titled device by a method wherein the displacement shafts of a plurality of piezoelectric displacement elements are adjoiningly provided in parallel with each other, and the upper surface of each element and the lower surface of the adjoining element are connected successively through the intermediary of the element supporting member which comes in contact with the upper and the lower surfaces of the elements. CONSTITUTION:The displacement shafts delta of a plurality of cylindrical piezoelectric displacement elements (cylindrical elements) 31-34 are provided in parallels with each other. The element 34 is fixed to the bottom face of the housing 51 where said elements 31-34 will be placed, a supporting member 43 is placed in the internal space of the element 34, the back side of a flanged part 43a is supported by the upper surface of the element 34, and the entire structure is lifted up from the housing. The lower surface of the element 33 is contacted to the supporting member 43, the element 33 is placed in the supporting member 43, and the element 33 is lifted up from the housing 51. Besides, the back side of the flanged part 42a of the supporting member 42 is supported by the upper surface of the element 33. The elements 31 and 32 are supported by the supporting members 41 and 42 in the same manner as mentioned above, and the elements 31-34 are coupled by the supporting members 41-43, thereby enabling to improve the sensitivity of displacement and to contrive miniaturization of the device.
    • 目的:为了提高位移的灵敏度以及通过一种方法来实现标题装置的小型化,其中多个压电位移元件的位移轴相互平行地邻接设置,并且每个元件的上表面和 相邻元件的下表面依次通过与元件的上表面和下表面接触的元件支撑元件的中间连接。 构成:多个圆柱形压电位移元件(圆柱形元件)31-34的位移轴三角形彼此平行设置。 元件34固定在壳体51的底面上,其中将放置元件31-34,支撑构件43放置在元件34的内部空间中,凸缘部分43a的后侧由 元件34的上表面,并且整个结构从壳体提升。 元件33的下表面与支撑构件43接触,元件33被放置在支撑构件43中,并且元件33从壳体51提升。另外,凸缘部分42a的后侧 支撑构件42由元件33的上表面支撑。元件31和32以与上述相同的方式由支撑构件41和42支撑,并且元件31-34通过支撑构件41- 从而能够提高位移的灵敏度并使设备的小型化。