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5 条记录 (耗时 0.01 秒)

    Ac and dc regulator circuit
    1.
    发明授权
    Ac and dc regulator circuit 失效
    交流和直流调节器电路

    公开(公告)号：US3576443A

    公开(公告)日：1971-04-27

    申请号：US3576443D

    申请日：1970-05-04

    申请人： LORAIN PROD CORP

    发明人： BROWN HAROLD J

    IPC分类号： G05F1/44 ,  H02M1/08 ,  H02J3/00 ,  H02M5/28 ,  H02M7/20

    CPC分类号： H02M1/081 ,  G05F1/44 ,  Y10T307/258

    摘要： A circuit for providing a regulated square wave output voltage and a regulated DC output voltage or both. An AC source energizes a switching circuit, having a variable switching rate, which connects a capacitor in voltage clamping relationship to an AC load for both half cycles of the AC voltage thereacross. This switching rate is controlled in accordance with the time accumulation of an electrical quantity, in the present instance the voltage across the AC load. The DC voltage across the capacitor attains a predetermined equilibrium value when the frequency of the AC output voltage is equal to the frequency of the AC source. If the DC capacitor voltage and the AC output voltage derived therefrom deviate from their equilibrium values, as, for example, because of a change in the level of load current, there occur transient changes in the switching rate of the switching circuit which result in changes in the phase displacement between the AC input voltage and the AC output voltage. This phase displacement controls the voltage across an inductor which, in turn, controls the flow of a current which restores the DC capacitor voltage and the amplitude and frequency of the AC output voltage to the desired values while supplying the required power to the AC and DC loads.

    Current stabilizer having a saturable reactor in the mode of forced magnetization
    2.
    发明授权
    Current stabilizer having a saturable reactor in the mode of forced magnetization 失效
    在强制磁场模式下具有可饱和电抗器的电流稳定器

    公开(公告)号：US3845380A

    公开(公告)日：1974-10-29

    申请号：US35013873

    申请日：1973-04-11

    申请人： LEPP V ,  CHERKASOV J ,  SIBGATULIN K

    发明人： LEPP V ,  SIBGATULIN K ,  CHERKASOV J

    IPC分类号： G05F1/38 ,  H01F29/14 ,  H02M5/28 ,  H02M7/20

    CPC分类号： G05F1/38 ,  H01F29/14 ,  H01F2029/143

    摘要： A current stabilizer having a saturable reactor in the mode of forced magnetization is adapted to control and stabilize both direct and alternating currents in the load, the wave form of the alternating current in the load being rectangular. The current stabilizer comprises working windings of the saturable reactor being separated into voltage working windings and current working windings which are switched over by power-controlled rectifiers when passing from the excitation mode into the conductivity mode, thus reducing the overall dimensions and weights of the current stabilizer.

    摘要翻译： 具有以强制磁化模式的可饱和电抗器的电流稳压器适于控制和稳定负载中的直流和交流电流，负载中的交流电流的波形为矩形。 目前的稳定器包括可饱和电抗器的工作绕组被分离成电压工作绕组和电流工作绕组，当从激励模式进入导电模式时，该工作绕组由功率控制的整流器切换，从而减小电流的总体尺寸和重量 稳定剂

    Circuit for summing electrically isolated signals
    3.
    发明授权
    Circuit for summing electrically isolated signals 失效
    夏季电隔离信号电路

    公开(公告)号：US3617861A

    公开(公告)日：1971-11-02

    申请号：US3617861D

    申请日：1970-02-06

    申请人： ALLEN BRADLEY CO

    发明人： FORD DAVID E JR ,  WALTZ RICHARD W

    IPC分类号： H02M7/155 ,  H02P7/295 ,  H02P13/16 ,  H02M5/28

    CPC分类号： H02P7/295 ,  H02M7/1555

    摘要： A control circuit for an SCR that is capable of responding to a plurality of electrically isolated input signals has a summing circuit connected to its input terminals to sum functions of the input signals. The summed signals are phase synchronized with formed SCR in a Phase Shift Circuit. The synchronized signal is formed into pulse trains functional of the summed input signals. The pulse trains are shaped in a pulse firing signal, which is connected to the SCR gate. The summing circuit chops the DC input signals with a reference carrier and sums the resulting envelopes in the secondaries of output coupling transformers.