Control circuit for inductive loads
    1.
    发明授权
    Control circuit for inductive loads 失效
    感应负载控制电路

    公开(公告)号:US3634733A

    公开(公告)日:1972-01-11

    申请号:US3634733D

    申请日:1970-11-30

    Applicant: CIT ALCATEL

    CPC classification number: H03K17/04113 H01F7/1805

    Abstract: For energizing an inductive load with a maximum current of brief duration followed by a steady current, less than the maximum, the inductive load is initially connected, by means of an amplifier switch, across a voltage source of relatively high-output voltage and subsequently connected, by means of another amplifier switch, across a voltage source of relatively low-output voltage. Trigger circuitry is operable to apply an input pulse of predetermined duration to the amplifier switch associated with the voltage source of high-output voltage and simultaneously trigger a delay circuit arranged to apply an input voltage to the amplifier switch associated with the source of low voltage. Respective diodes connect a common point the outputs of the respective amplifier switches, the common point and a point at a reference potential provide respective first and second connections to the inductive load.

    Abstract translation: 为了对具有短暂持续时间的最大电流(小于最大值)的感性负载供电,感应负载首先通过放大器开关连接在相对高输出电压的电压源上并随后连接 通过另一个放大器开关,跨越相对低输出电压的电压源。 触发电路可操作以将具有预定持续时间的输入脉冲施加到与高输出电压的电压源相关联的放大器开关,并且同时触发布置成将输入电压施加到与低电压源相关联的放大器开关的延迟电路。 相应的二极管连接公共点,各个放大器开关的输出,公共点和参考电位的点提供相应的第一和第二连接到电感负载。

    A.C. voltage detector with delayed triggering signal generation
    2.
    发明授权
    A.C. voltage detector with delayed triggering signal generation 失效
    具有延迟触发信号产生的交流电压检测器

    公开(公告)号:US3916221A

    公开(公告)日:1975-10-28

    申请号:US42981674

    申请日:1974-01-02

    Applicant: CIT ALCATEL

    CPC classification number: H03K17/28 H04L1/20

    Abstract: Circuitry used in detecting a data signal on an electric transmission line includes a detector with a charge capacitor and a circuit comprising a diode, resistors and an auxiliary capacitor. Upon the appearance of a data signal at the input of the detector, the circuitry generates a delayed triggering signal at its output due to the parallel connection of the charge and auxiliary capacitors and the resulting large time constant of the circuitry. When the data signal ceases to appear, the diode becomes reverse biased by the charge having been stored on the auxiliary capacitor, and since the time constant of the circuitry is thereby made smaller, the provision of the triggering signal is rapidly ended.

    Abstract translation: 用于检测电力传输线上的数据信号的电路包括具有充电电容器的检测器和包括二极管,电阻器和辅助电容器的电路。 当在检测器的输入端出现数据信号时,由于电荷和辅助电容器的并联连接以及由此导致的电路的大的时间常数,电路在其输出端产生延迟的触发信号。 当数据信号不再出现时,二极管被已经存储在辅助电容器上的电荷反向偏置,并且由于电路的时间常数因此变小,所以触发信号的提供迅速地结束。

    4.
    发明专利
    未知

    公开(公告)号:DE2058233A1

    公开(公告)日:1971-06-09

    申请号:DE2058233

    申请日:1970-11-26

    Applicant: CIT ALCATEL

    Abstract: For energizing an inductive load with a maximum current of brief duration followed by a steady current, less than the maximum, the inductive load is initially connected, by means of an amplifier switch, across a voltage source of relatively high-output voltage and subsequently connected, by means of another amplifier switch, across a voltage source of relatively low-output voltage. Trigger circuitry is operable to apply an input pulse of predetermined duration to the amplifier switch associated with the voltage source of high-output voltage and simultaneously trigger a delay circuit arranged to apply an input voltage to the amplifier switch associated with the source of low voltage. Respective diodes connect a common point the outputs of the respective amplifier switches, the common point and a point at a reference potential provide respective first and second connections to the inductive load.

    5.
    发明专利
    未知

    公开(公告)号:DK140298B

    公开(公告)日:1979-07-23

    申请号:DK607971

    申请日:1971-12-13

    Applicant: CIT ALCATEL

    Abstract: Device for automatically correcting a code, forming an improvement to a device which combines, in a single unit, means for perforating a paper tape which moves step-by-step, and for reading the code which has just been perforated during the preceding step, this improvement consisting of automatically correcting any code which has been erroneously perforated by causing the tape to step back to the location of the error and either correcting the error or voiding and re-perforating the code at a new location.

    6.
    发明专利
    未知

    公开(公告)号:DE2363263A1

    公开(公告)日:1974-07-04

    申请号:DE2363263

    申请日:1973-12-19

    Applicant: CIT ALCATEL

    Abstract: Circuitry used in detecting a data signal on an electric transmission line includes a detector with a charge capacitor and a circuit comprising a diode, resistors and an auxiliary capacitor. Upon the appearance of a data signal at the input of the detector, the circuitry generates a delayed triggering signal at its output due to the parallel connection of the charge and auxiliary capacitors and the resulting large time constant of the circuitry. When the data signal ceases to appear, the diode becomes reverse biased by the charge having been stored on the auxiliary capacitor, and since the time constant of the circuitry is thereby made smaller, the provision of the triggering signal is rapidly ended.

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