Feedforward amplifier
    52.
    发明授权
    Feedforward amplifier 失效
    前馈放大器

    公开(公告)号:US5898339A

    公开(公告)日:1999-04-27

    申请号:US912687

    申请日:1997-08-18

    IPC分类号: H03F1/32 H04J1/00 H03F1/26

    CPC分类号: H03F1/3235

    摘要: A feedforward amplifier having a distortion detection loop and a distortion elimination loop is provided that achieves increased accuracy, improved response, and stable operation. A variable attenuator is placed in front of a detector in a loop output stage, and the amount of attenuation in the variable attenuator is set large during a transient response period during the rising of the amplifier, and set small during a steady-state condition. The detection of the transition to the steady-state condition is accomplished, for example, by comparing the detector output with a prescribed threshold value. The width of perturbation is set large during a transient response period, and set small during a steady-state condition.

    摘要翻译: 提供具有失真检测回路和失真消除回路的前馈放大器,其实现了增加的精度,改进的响应和稳定的操作。 可变衰减器放置在环路输出级中的检测器的前面,并且在放大器的上升期间的瞬态响应周期期间可变衰减器中的衰减量被设置得很大,并且在稳态条件期间设置得较小。 例如,通过将检测器输出与规定的阈值进行比较来实现向稳态条件的转变的检测。 在瞬态响应期间扰动宽度设置较大,在稳态条件下设置较小。

    Method of producing biaxially oriented tubular polyetheretherketone films
    53.
    发明授权
    Method of producing biaxially oriented tubular polyetheretherketone films 失效
    双轴取向管状聚醚醚酮薄膜的制备方法

    公开(公告)号:US4687615A

    公开(公告)日:1987-08-18

    申请号:US776545

    申请日:1985-09-16

    IPC分类号: B29C47/00 B29C47/88

    摘要: A method of producing biaxially oriented tubular polyetheretherketone films having good optical and mechanical properties and heat resistance, by rapidly quenching at a rate of at least 24.degree. C. per second an unoriented tubular polyetheretherketone film as melt-extruded through a circular die thereby imparting a crystallinity of not greater than 10% to the film, and continuously introducing the thus produced film into the space between a feed nip roll pair and a pull nip roll pair while reheating the film externally to a temperature of 60.degree.-140.degree. C. and allowing the film to expand under the influence of the internal pressure to an areal draw ratio of 4-36, to thereby attain biaxial orientation.

    摘要翻译: 一种制备双轴取向的管状聚醚醚酮膜的方法,其通过以每秒至少24℃的速度快速淬火,通过圆形模头熔融挤出的无取向的管状聚醚醚酮膜,从而赋予双轴取向的管状聚醚醚酮膜, 结晶度不大于10%,并且将如此制得的膜连续地引入到进给辊辊对和拉压辊辊对之间的空间中,同时将膜外部再加热到60-140℃的温度, 使膜在内部压力的影响下膨胀至面积拉伸比为4-36,从而获得双轴取向。

    Lithium secondary battery
    58.
    发明授权
    Lithium secondary battery 有权
    锂二次电池

    公开(公告)号:US07189478B2

    公开(公告)日:2007-03-13

    申请号:US10606749

    申请日:2003-06-27

    摘要: The invention aims to provide a lithium secondary battery exhibiting the improved function of self safety in an abnormal state without sacrificing battery characteristics. To attain the object, in a lithium secondary battery comprising a positive electrode (3a, 3b), a negative electrode (2a, 2b), an electrolytic solution, and a separator, a plurality of positive electrodes (3a, 3b) and negative electrodes (2a, 2b) are arranged to construct an electrode structure which includes an outermost layer of electrode on which a back coat layer (11) is formed.

    摘要翻译: 本发明的目的在于提供一种在不牺牲电池特性的情况下表现出异常状态下自身安全性改善的锂二次电池。 为了实现该目的,在包含正极(3a,3b),负极(2a,2b),电解液和隔膜的锂二次电池中,多个正极(3a, 3b)和负电极(2a,2b)被布置成构成电极结构,其包括形成有背涂层(11)的电极的最外层。

    Nonaqueous electrolyte solution and lithium ion secondary battery
    59.
    发明申请
    Nonaqueous electrolyte solution and lithium ion secondary battery 有权
    非水电解液和锂离子二次电池

    公开(公告)号:US20070015063A1

    公开(公告)日:2007-01-18

    申请号:US10558556

    申请日:2004-05-28

    IPC分类号: H01M10/40 H01M4/58

    摘要: A nonaqueous solvent in a nonaqueous electrolytic solution in a lithium-ion secondary battery 1 contains propylene carbonate (PC), a first compound expressed by formula (I), and a second compound expressed by formula (II). The content of PC in the nonaqueous solvent is at least 10 volume %. The content X [mass %] of the first compound and the content Y [mass %] of the second compound simultaneously satisfy the conditions represented by expressions (1) and (2) [2≦(X+Y)≦8 (1), 0.01≦(Y/X)≦0.30 (2)]. R1 to R6 in formula (I) indicate any of a hydrogen atom and hydrocarbon groups having a carbon number of 1 to 3, whereas R7 and R8 in formula (II) indicate any of a hydrogen atom and hydrocarbon groups having a carbon number of 1 to 3.

    摘要翻译: 锂离子二次电池1的非水电解液中的非水溶剂含有碳酸亚丙酯(PC),由式(I)表示的第一化合物和式(II)表示的第二化合物。 PC在非水溶剂中的含量为10体积%以上。 第一化合物的含量X [质量%]和第二化合物的含量Y [质量%]同时满足由式(1)和(2)表示的条件[2 <=(X + Y)<= 8( 1),0.01 <=(Y / X)<= 0.30(2)]。 式(I)中的R 1至R 6表示氢原子和碳原子数为1至3的烃基中的任一个,而R 7, 式(II)中的R S和R 8表示氢原子和碳数为1〜3的烃基中的任一个。