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191 条记录 (耗时 0.01 秒)

    Magnetic amplifying apparatus
    33.
    发明授权
    Magnetic amplifying apparatus 失效
    磁放大装置

    公开(公告)号：US4377758A

    公开(公告)日：1983-03-22

    申请号：US160202

    申请日：1980-06-17

    申请人： Hisakatsu Kiwaki

    发明人： Hisakatsu Kiwaki

    IPC分类号： H02M1/08 ,  H03F9/00 ,  H03F9/04

    CPC分类号： H03F9/04 ,  H03F9/00

    摘要： In an apparatus having a saturable magnetic core, a control winding wound on the magnetic core and supplied with a D.C. voltage in accordance with a desired phase angle, and an output winding wound on the magnetic core and supplied with an A.C. voltage through a load resistor, whereby the firing phase of a thyristor is controlled by a voltage across the load resistor, an additional winding is wound on the saturable magnetic core to detect the saturation of the saturable magnetic core by a rapid drop of a voltage across the additional winding. When the saturation is detected, the magnitude of the A.C. voltage applied to the output winding is increased. The phase angle characteristic of the magnetic phase shifter is determined under a low voltage condition prior to the saturation of the magnetic core, and after the saturation a high voltage is applied to the load resistor.

    摘要翻译： 在具有可饱和磁芯的装置中，控制绕组缠绕在磁芯上并根据期望的相位角提供直流电压，以及缠绕在磁芯上的输出绕组，并通过负载电阻器提供交流电压 ，由此晶闸管的触发相位由负载电阻器两端的电压控制，另外的绕组缠绕在可饱和磁芯上，以通过附加绕组上的电压的快速下降来检测可饱和磁芯的饱和度。 当检测到饱和时，施加到输出绕组的交流电压的幅度增加。 在磁芯饱和之前，在低电压条件下确定磁性移相器的相位角特性，在饱和之后，向负载电阻施加高电压。

    Half-wave bridge type magnetic amplifier
    34.
    发明授权
    Half-wave bridge type magnetic amplifier 失效
    半桥式电磁放大器

    公开(公告)号：US3739291A

    公开(公告)日：1973-06-12

    申请号：US65303057

    申请日：1957-04-15

    申请人： SPERRY RAND CORP FORD INSTR CO

    发明人： BUCHHOLD T

    IPC分类号： H03F9/04 ,  H03F9/00

    CPC分类号： H03F9/04

    摘要： 1. A multistage magnetic amplifier having an a.c. line, each stage comprising a pair of closed magnetic circuits and two branch circuits connected across said a.c. line, each branch circuit including in series a reactor winding respectively disposed on one of said magnetic circuits an impedance and two unidirectional devices, said devices in each of the stages being poled in the same direction and the devices in successive stages being respectively oppositely poled, each stage also comprising a control circuit including two control windings, one control winding being disposed on each magnetic circuit, one control winding being arranged to aid the flux induced by the reactor winding of one core and the other control winding being arranged to oppose the flux induced by the reactor winding on the other core, means conductively connecting the control circuit of the stages after the first stage to the branch circuits of the preceding stage at points between the two unidirectional devices in each branch circuit of the said preceding stage, and a single biasing resistor connected in shunt relation to the two unidirectional devices and the control circuit connection in one of said branch circuits.

    摘要翻译： 1.一种具有直流电流的多级磁放大器。 每一级包括一对闭合磁路和两条连接在所述交流电上的分支电路。 每个分支电路串联包括分别设置在所述磁路之一上的电抗器绕组和两个单向装置，每个级中的所述装置在相同方向上被极化，并且连续阶段的装置分别相对极化， 每个级还包括一个包括两个控制绕组的控制电路，一个控制绕组设置在每个磁路上，一个控制绕组被布置成辅助由一个磁芯的电抗器绕组感应的磁通，而另一个控制绕组被布置成与磁通相反 由在另一个核心上的电抗器绕组引起的装置意味着在所述前一级的每个分支电路中的两个单向装置之间的点处，将第一级之后的级的控制电路与先前级的分支电路导电连接， 单个偏置电阻与两个单向器件分流连接，并且控制环路 t连接在所述分支电路之一中。