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    Control system for adjusting a-c motor speed at line frequency or a subharmonic of the line frequency
    1.
    发明授权
    Control system for adjusting a-c motor speed at line frequency or a subharmonic of the line frequency 失效
    用于调整线路频率a-c电机速度或线路频率分调的控制系统

    公开(公告)号：US3908158A

    公开(公告)日：1975-09-23

    申请号：US50663974

    申请日：1974-09-16

    Applicant: BORG WARNER

    Inventor： STUDTMANN GEORGE H

    IPC: H02P25/14 ,  H02P5/40

    CPC classification number: H02P25/14

    Abstract: Speed control of an a-c motor is accomplished with back-to-back thyristors coupled between the power line and the motor. A gate circuit (1) selects which of the thyristors can be gated on, and (2) determines the actual time of thyristor conduction in each half-cycle. In turn the gate circuit is regulated, as to thyristor selection, by a countdown arrangement including frequency control and multivibrator circuits. The gate circuit is also regulated, to determine the actual conduction time, by a voltage control circuit coupled to the frequency control circuit. Thus the frequency control circuit regulates motor speed as a function either of the fundamental power line frequency, or a subharmonic of the line frequency.

    Abstract translation: a-c电机的速度控制通过耦合在电力线和电动机之间的背靠背晶闸管来实现。 门电路（1）选择哪个晶闸管可以选通，以及（2）确定每个半周期中晶闸管导通的实际时间。 通过包括频率控制和多谐振荡器电路在内的倒数排列，栅极电路又被调节，关于晶闸管选择。 门电路也通过与频率控制电路耦合的电压控制电路进行调节，以确定实际的导通时间。 因此，频率控制电路将电动机速度调节为基本电力线频率的函数或线路频率的次谐波。

    MULTI-PHASE INVERTER USING ISOLATED DIRECT CURRENT SUPPLIED FOR FIRING THE SCRs
    3.
    发明授权
    MULTI-PHASE INVERTER USING ISOLATED DIRECT CURRENT SUPPLIED FOR FIRING THE SCRs 失效
    使用分离直流电源的多相逆变器用于启动SCR

    公开(公告)号：US3656047A

    公开(公告)日：1972-04-11

    申请号：US3656047D

    申请日：1971-02-04

    Applicant: BORG WARNER

    Inventor： YAREMA RAYMOND J ,  STUDTMANN GEORGE H

    IPC: H02M3/315 ,  H02M7/515 ,  H02M7/52

    CPC classification number: H02M7/5155 ,  H02M3/315

    Abstract: An impulse commutated, variable output frequency, multiphase inverter type of power switching system employing main SCRs to handle the primary output currents and auxiliary SCRs to aid in commutating the main SCRs is disclosed wherein the firing of the SCRs is done by using isolated direct current supplies. Each SCR is fired by a separate driving circuit which includes individual isolated direct current supply and a switch unit to connect that supply directly to the gate-cathode circuit of the associated SCR. The control circuitry includes an oscillator whose output frequency is selectively variable, and a three-phase square-wave generator driven by the oscillator which produce two squarewaves, one the inverse of the other, for each phase. Each of these six outputs of the generator drives a pulse and a delay pulse circuit which respectively produce a first pulse and a delayed second pulse in response to each change of polarity of the particular square-wave input. These pulse and delay pulse are inductively coupled to different ones of the multivibrator circuits to turn on the switch unit and to ''''fire'''' an SCR in accordance with a predetermined sequence so as to generate a three-phase a.c. output from the inverter. This arrangement allows for short rise times and fast turn-off of the SCR gate drive and also allows the output frequency to be varied over a large range from d.c. to large values.

    Abstract translation: 公开了一种脉冲换向，可变输出频率，多相逆变器类型的电力开关系统，其使用主要SCR来处理初级输出电流和辅助SCR以帮助整流主SCR，其中SCR的触发通过使用隔离的直流电源 。 每个SCR由单独的驱动电路触发，该驱动电路包括单独的隔离直流电源和将该电源直接连接到相关SCR的栅极 - 阴极电路的开关单元。 控制电路包括一个输出频率可选择性变化的振荡器，以及由振荡器驱动的三相方波发生器，其产生两个方波，一个是相对于每个相位的反向。 发生器的这六个输出中的每一个驱动脉冲和延迟脉冲电路，其响应于特定方波输入的极性的每个改变分别产生第一脉冲和延迟的第二脉冲。 这些脉冲和延迟脉冲电感耦合到多谐振荡器电路中的不同的电路，以接通开关单元并根据预定的顺序“触发”SCR，以便产生三相交流电。 从变频器输出。 这种布置允许SCR上升时间短并快速关断SCR栅极驱动，并且还允许输出频率在直流范围内变化很大。 到大价值。

    Constant volts-per-hertz regulating system
    7.
    发明授权
    Constant volts-per-hertz regulating system 失效
    恒定伏特比特法规调整系统

    公开(公告)号：US3560834A

    公开(公告)日：1971-02-02

    申请号：US3560834D

    申请日：1968-12-26

    Applicant: BORG WARNER

    Inventor： STUDTMANN GEORGE H

    IPC: G05F1/12 ,  H02M1/08 ,  H02P25/04 ,  H02P27/06 ,  H02P27/08 ,  H02P5/40

    CPC classification number: H02P27/06 ,  H02M1/08 ,  H02P27/047 ,  H02P27/08 ,  H02P2201/03

    Abstract: AN OSCILLATOR APPLIES TIMING SIGNALS TO AN INVERTER LOGIC ARRANGEMENT FOR GOVERNING THE FREQUENCY OF THE INVERTER OUTPUT A-C VOLTAGE SUPPLIED TO A MOTOR. THE AMPLITUDE OF THE A-C VOLTAGE APPLIED TO THE MOTOR IS ADJUSTED BY SUITABLE CONTROL MEANS WHICH RECEIVES A REGULATING SIGNAL FROM A COMPARATOR. A FIRST SIGNAL CHANNEL INCLUDES A FEEDBACK NETWORK, AND APPLIES TO THE COMPARATOR A FIRST CONTROL SIGNAL WHICH INDICATES THE EFFECTIVE AMPLITUDE OF THE INVERTER VOLTAGE. A SECOND SIGNAL CHANNEL IS CONNECTED BETWEEN THE OSCILLATOR AND THE COMPARATOR TO PROVIDE A SECOND CONTROL SIGNAL RELATED TO THE FREQUENCY OF THE OSCILLATOR OUTPUT. THE COMPARATOR OUTPUT SIGNAL IS A FUNCTION OF BOTH AMPLITUDE AND FREQUENCY, AND DRIVES THE CONTROL MEANS TO MAIN A PRESET RATIO BETWEEN AMPLITUDE AND FREQUENCY OF THE A-C VOLTAGE PASSED TO THE MOTOR.

    Thyristor with added gate and fast turn-off circuit
    9.
    发明授权
    Thyristor with added gate and fast turn-off circuit 失效
    带有门和快速关闭电路的THYRISTOR

    公开(公告)号：US3638042A

    公开(公告)日：1972-01-25

    申请号：US3638042D

    申请日：1969-07-31

    Applicant: BORG WARNER

    Inventor： STUDTMANN GEORGE H

    IPC: H01L29/00 ,  H01L29/74 ,  H01L29/744 ,  H02M1/06 ,  H03K17/72 ,  H03K17/00 ,  H03K17/56

    CPC classification number: H03K17/72 ,  H01L29/00 ,  H02M1/06

    Abstract: A PNPN-thyristor has an extra gate connection added in the Nregion adjacent the outer P-region. A pulse generator applies a turnoff control signal to the added gate when turnoff across the anode-cathode connections is initiated, to sweep out the carriers at the center junction rather than allow the carriers to normally recombine over a longer time period. The connection to the added gate can be extended in area, either in the operation by which the extra connection is added to a conventionally produced PNPNthyristor, or by varying the manufacturing process by which the PNPN-thyristor is produced.

    Abstract translation: PNPN晶闸管在邻近外部P-区域的N区域中增加了一个额外的栅极连接。 当跨越阳极 - 阴极连接的开关被启动时，脉冲发生器向加入的栅极施加截止控制信号，以扫除中心连接处的载流子，而不是允许载流子在更长的时间段内正常复合。 在添加了常规PNPN晶闸管的额外连接的操作中，或者通过改变制造PNPN晶闸管的制造工艺，可以在区域中扩展与加入的栅极的连接。

    Static transfer switching system
    10.
    发明授权
    Static transfer switching system 失效
    静态转换开关系统

    公开(公告)号：US3634701A

    公开(公告)日：1972-01-11

    申请号：US3634701D

    申请日：1969-10-16

    Applicant: BORG WARNER

    Inventor： STUDTMANN GEORGE H

    IPC: H02H3/36 ,  H02J9/06 ,  H03K17/72 ,  H03K17/725 ,  H03K5/00

    CPC classification number: H02J9/06 ,  H02H3/36 ,  H03K17/72 ,  H03K17/725 ,  Y10T307/615

    Abstract: A static transfer system includes a first switch for connecting a normally used AC source to a lead and a second switch for connecting a standby source to the lead. A sensor is connected to an AC sine wave reference source for comparing at every instant of time the normal AC sine wave signal to the reference source signal and feeding an error signal to a logic circuit at any instant in time when the normal source signal falls below the reference signal. The logic circuit is effective to instantaneously connect the load to the standby source and disconnect the load from the normal source irrespective of the load power factor, and to reconnect the load to the normal source and disconnect the standby source from the load when the normal source is again capable of handling the load.

    Abstract translation: 静态传输系统包括用于将正常使用的AC源连接到引线的第一开关和用于将备用源连接到引线的第二开关。 传感器连接到交流正弦波参考源，用于在每一时刻将正常交流正弦波信号与参考源信号进行比较，并在正常信号源下降的任何时刻将误差信号馈送到逻辑电路 参考信号。 逻辑电路有效地将负载瞬时连接到备用电源，并将负载从正常电源断开，而不管负载功率因数如何，并将负载重新连接到正常电源，并将正常来源的负载源与负载断开 再次能够处理负载。

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