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    Three-phase inverter
    3.
    发明授权
    Three-phase inverter 失效
    三相逆变器

    公开(公告)号：US3573602A

    公开(公告)日：1971-04-06

    申请号：US3573602D

    申请日：1969-06-16

    Applicant: DANFOSS AS

    Inventor： JENSEN ARNE

    IPC: H02M7/06 ,  H02M7/48 ,  H02M7/49 ,  H02M1/12

    CPC classification number: H02M7/49 ,  H02M7/068

    Abstract: The invention relates to a three-phase inverter producing a stepped voltage between each two output terminals which approximates the sinusoidal form. The apparatus includes two three-phase inverter systems of the type comprising pairs of parallel arranged controllable rectifiers and three transformers each having a primary winding and two secondary windings.

    Control arrangement for a three phase motor with intermediate d.c. regulation
    6.
    发明授权
    Control arrangement for a three phase motor with intermediate d.c. regulation 失效
    具有中等规格的三相电机控制装置

    公开(公告)号：US3691439A

    公开(公告)日：1972-09-12

    申请号：US3691439D

    申请日：1971-01-28

    Applicant: DANFOSS AS

    Inventor： JENSEN ARNE ,  PETERSEN TOM KASTRUP

    IPC: H02P27/06

    CPC classification number: H02P27/06 ,  H02P27/047

    Abstract: The invention relates to a motor control which comprises a D.C. voltage regulator and an inverted converter. The voltage regulator has a periodically actuatable switch and filter means are provided between the voltage regulator and the converter for smoothing the voltage from the regulator. A series arranged resistor and condenser are disposed in parallel to the condenser of the filter means for damping pulsations in the voltage regulator output which cause motor torque fluctuations.

    Generator for producing triangular signals
    7.
    发明授权
    Generator for producing triangular signals 失效
    用于生产三角形信号的发生器

    公开(公告)号：US3579274A

    公开(公告)日：1971-05-18

    申请号：US3579274D

    申请日：1968-08-26

    Applicant: DANFOSS AS

    Inventor： JENSEN ARNE ,  PETERSEN TOM KASTRUP

    IPC: H03K3/26 ,  H03K4/06

    CPC classification number: H03K3/26

    Abstract: A wave generator having an oscillator and a flip-flop generating two square waves of constant frequency and one of which is varied in amplitude in dependence upon the varying amplitude of a control signal received in a control circuit and the other of which is limited in amplitude by a limiter. The two square waves are applied to and added in a summing circuit and integrated in a differentiating amplifier with a limiter and emitter follower feedback circuit.

    Control system for an alternating current motor
    9.
    发明授权
    Control system for an alternating current motor 失效
    用于替代电流电机的控制系统

    公开(公告)号：US3700989A

    公开(公告)日：1972-10-24

    申请号：US3700989D

    申请日：1971-03-31

    Applicant: DANFOSS AS

    Inventor： JENSEN ARNE

    IPC: H02P27/06 ,  H02P7/00 ,  H02P27/08 ,  H02P5/40

    CPC classification number: H02P27/08 ,  H02P27/047

    Abstract: The invention relates to a control system for an alternating current motor such as a polyphase induction motor. The control system includes a DC to AC inverter in combination with voltage and frequency regulators with the voltage and frequency being dependent upon each other. Control means are provided which sense the inverter current and translate the data sensed into two voltages which are separately subtracted from the output of the voltage regulator to provide two corrected voltages for regulating the voltage regulator and the frequency regulator.

    Abstract translation: 本发明涉及一种用于诸如多相感应电动机的交流电动机的控制系统。 控制系统包括一个与电压和频率调节器结合的直流到交流逆变器，其电压和频率彼此相依。 提供控制装置，其感测逆变器电流并将感测的数据转换成两个电压，其从电压调节器的输出单独地减去，以提供用于调节电压调节器和频率调节器的两个校正电压。

    Step switch
    10.
    发明授权
    Step switch 失效
    步骤开关

    公开(公告)号：US3646365A

    公开(公告)日：1972-02-29

    申请号：US3646365D

    申请日：1970-04-17

    Applicant: DANFOSS AS

    Inventor： THORSOE FLEMMING ,  JENSEN ARNE

    IPC: G05B11/18 ,  G05B11/16 ,  H03K17/725 ,  H03K21/02 ,  H03K17/00

    CPC classification number: G05B11/16 ,  H03K17/725 ,  H03K21/02

    Abstract: The invention relates to a step switch assembly which switches power on and off in a stepwise manner in dependence upon the upper and lower limiting values of a control signal. The switch assembly may be used for operating in a stepwise manner a bank of units such as motors wherein each motor, or group of motors, represents a portion or part of the total available capacity of a system such as air conditioning system. The step switch assembly includes a reversible counter, a transmitter for sending digital impulses to the counter, and power stages which are switchable on and off in dependence upon information stored at the counter output points.

    Abstract translation: 本发明涉及一种根据控制信号的上限值和下限值逐步切换电源的步进开关组件。 开关组件可以用于以逐步方式操作诸如电动机的一组单元，其中每个电动机或一组电动机代表诸如空调系统的系统的总可用容量的一部分或部分。 步进开关组件包括可逆计数器，用于向计数器发送数字脉冲的发射器以及根据存储在计数器输出点处的信息可开启和关闭的功率级。

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