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    Resistor circuit for integrated circuit chip using insulated field effect transistors
    1.
    发明授权
    Resistor circuit for integrated circuit chip using insulated field effect transistors 失效
    集成电路芯片采用绝缘场效应晶体管的电阻电路

    公开(公告)号：US5583464A

    公开(公告)日：1996-12-10

    申请号：US242504

    申请日：1994-05-13

    申请人： Thomas F. Knight, Jr. ,  William K. Stewart ,  Edward C. Parish ,  Jon P. Wade

    发明人： Thomas F. Knight, Jr. ,  William K. Stewart ,  Edward C. Parish ,  Jon P. Wade

    IPC分类号： G05F3/24 ,  G05F1/10

    CPC分类号： G05F3/242

    摘要： A resistor circuit includes a resistance control circuit and at least one insulated gate field effect transistor. The resistance control circuit includes a control signal output element including a reference transistor for generating a resistance control signal in response to an internal control signal to maintain the reference transistor at a selected resistance value and a resistance value control element including a reference resistor for generating a circuit control signal for controlling the resistance value of the reference transistor in relation to the resistance value provided by the reference resistor. The field effect transistor is controlled by the resistance control signal to provide a resistance value which is a function of the resistance value of the reference transistor (and therefore of the reference resistor) and ratios of selected physical characteristics of the reference transistor.

    摘要翻译： 电阻电路包括电阻控制电路和至少一个绝缘栅场效应晶体管。 电阻控制电路包括控制信号输出元件，该控制信号输出元件包括参考晶体管，用于响应于内部控制信号产生电阻控制信号，以将参考晶体管保持在所选择的电阻值，以及电阻值控制元件，其包括用于产生 电路控制信号，用于相对于由参考电阻器提供的电阻值来控制参考晶体管的电阻值。 场效应晶体管由电阻控制信号控制，以提供作为参考晶体管（因此参考电阻器）的电阻值和参考晶体管的选定物理特性的比率的函数的电阻值。

    Temperature stabilized helical resonator
    2.
    发明授权
    Temperature stabilized helical resonator 失效
    温度稳定螺旋谐振器

    公开(公告)号：US4205286A

    公开(公告)日：1980-05-27

    申请号：US881308

    申请日：1978-02-27

    申请人： Edward C. Parish

    发明人： Edward C. Parish

    IPC分类号： H01P1/30 ,  H01P7/00

    CPC分类号： H01P7/005

    摘要： The coil form for a helical resonator is comprised of two sections connected by a flexible joint. The coil form/winding assembly is positioned within a cavity such that the ends of the coil forms are affixed to the cavity walls. A tuning screw threads into the cavity wall in tuning relation to the coil.The resulting resonator structure maintains a low frequency drift characteristic over a wide temperature range due to the fixed tuning screw to coil spacing. Strain to the structure due to thermal stress is relieved by the flexible joint.

    摘要翻译： 用于螺旋谐振器的线圈形式由通过柔性接头连接的两个部分组成。 线圈形式/绕组组件定位在腔体内，使得线圈形式的端部固定到腔壁。 调谐螺丝通过与线圈调谐关系进入腔壁。 所产生的谐振器结构在宽的温度范围内保持低的频率漂移特性，这是由于固定的调谐螺杆与线圈的间距。 由于热应力引起的结构应变由柔性接头消除。