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8 条记录 (耗时 0.01 秒)

    A control circuit for a heater with variable resistance associated with a sensor for detecting oxygen in exhaust gases
    4.
    发明公开
    A control circuit for a heater with variable resistance associated with a sensor for detecting oxygen in exhaust gases 失效
    Heizelementsteuerschaltung可变重砂与传感器相关联，用于在废气检测氧

    公开(公告)号：EP0806561A1

    公开(公告)日：1997-11-12

    申请号：EP97107132.9

    申请日：1997-04-30

    申请人： SGS-THOMSON MICROELECTRONICS s.r.l. ,  MAGNETI MARELLI S.p.A.

    发明人： Giorgetta, Valerio ,  Mastella, Paolo ,  Maggioni, Giampietro ,  Contucci, Mirco

    IPC分类号： F02D41/14

    CPC分类号： F02D41/1494

    摘要： The circuit comprises a measurement resistor (Rs) in series with the heater (16, 28), a detector circuit (20) for providing a signal (VOP) indicative of the current flowing in the resistor (Rs), switching devices (PW1, PW2; PW3, PW4) for controlling the connection of the heater (16, 28) to a direct-current voltage source (Vbat) and the connection of the measurement resistor (Rs) in the supply circuit comprising the source (Vbat) and the heater (16, 28), and a control unit (18, 32) arranged to drive the switching devices (PW1, PW2; PW3, PW4) in a manner such that, each time the heater (16, 28) is activated, the measurement resistor (Rs) is kept disconnected from the supply circuit of the heater (16, 28) for a predetermined period of time and the measurement resistor (Rs) is then connected in the supply circuit of the heater (16, 28).

    摘要翻译： 该电路与加热器（16,28）串联包括测量电阻器（RS），检测器电路（20），用于提供一个信号（VOP），其指示在所述电阻器（RS）中流动的电流的，开关装置（PW1， PW2，PW3，PW4），用于控制加热器的（）将一个直流电压源（VBAT）和测量电阻器的连接（RS）包括源Vbat的连接部16，28（在电源电路）和 加热器（16，28），并且布置成驱动所述开关装置（PW1，PW2; PW3，PW4）的控制单元（18，32）以这样的方式检查了，每当加热器（16，28）被激活，则 测量电阻器（RS）可以在预定的时间周期和测量电阻器保持断开从加热器（16，28）的供电电路（RS）然后连接在加热器（16，28）的供电电路。

    A stand-by circuit for controlling the supply of current to a driver circuit for a DC electric motor
    7.
    发明公开
    A stand-by circuit for controlling the supply of current to a driver circuit for a DC electric motor 失效
    备用电路，用于控制为一个DC电动机的驱动电路的电源。

    公开(公告)号：EP0562455A1

    公开(公告)日：1993-09-29

    申请号：EP93104429.1

    申请日：1993-03-18

    申请人： MAGNETI MARELLI S.p.A.

    发明人： Salerno, Franco ,  Mastella, Paolo

    IPC分类号： H02P6/02

    CPC分类号： H02P6/08 ,  H02P6/00

    摘要： The stand-by circuit (SBC) comprises an input terminal (a) intended to be connected to the input of the driver circuit (IC), a capacitor (C), first and second current generators (G1, G2) selectively connectable to the capacitor (C), a first comparator circuit (C1) which when the signal (V in ) applied to the said input terminal (a) exceeds a predetermined threshold (Vso) connects the capacitor (C) to the first current generator (G1) to charge the said capacitor (C) at constant current, and when the said signal (V in ) is less than the said threshold (Vso) uncouples the capacitor (C) from the first current generator (G1) and connects it to the second generator (G2) in such a way as to discharge it at constant current, and
       a second comparator circuit (C2) which allows current to be supplied to the driver circuit (IC) when the voltage on the capacitor (C) exceeds a preestablished threshold (Vs2).

    摘要翻译： 输入端子的待机电路（SBC）包括（a）用于连接到所述驱动器电路（IC），电容器（C），第一和第二电流发生器（G1，G2）选择性地连接到输入 电容器（C），第一比较器电路（C1）其中当施加到所述输入端（一）信号（Vin）超过规定的阈值（VSO）将所述电容器（C）连接到第一电流发生器（G1）到 在恒定电流充电所述电容器（C），并且当所述信号（VIN）小于所述阈值（VSO）脱开与所述第一电流发生器（G1）的电容器（C）并将其连接到所述第二发生器（ G2）在寻求一种方式在恒定电流放电它，并且允许电流被提供给驱动器电路（IC）。当在电容器（C上的电压）超过预先建立的阈值的第二比较器电路（C2）（VS2 ）。

    An interface circuit for generating an analogue signal to control the speed of rotation of a direct-current electric motor, particularly a brushless motor
    8.
    发明公开
    An interface circuit for generating an analogue signal to control the speed of rotation of a direct-current electric motor, particularly a brushless motor 失效
    控制接口电路用于由DC电动机，特别是一种无刷电动机的旋转速度产生的模拟信号。

    公开(公告)号：EP0562452A1

    公开(公告)日：1993-09-29

    申请号：EP93104426.7

    申请日：1993-03-18

    申请人： INDUSTRIE MAGNETI MARELLI S.p.A.

    发明人： De Filippis, Pietro, c/o IND. MAGNETI MARELLI SpA ,  Salerno, Franco ,  Mastella, Paolo

    IPC分类号： H02P6/00

    CPC分类号： H02P6/08 ,  H02P6/18

    摘要： The interface circuit (IC) has a single input terminal (i) for to receiving an analogue or digital (PWM) control signal (Vin) indicative of the required speed of rotation of the motor (M). The type of input signal (V in ) is recognised by means of comparator circuits (C1, C2). The input signal (V in ) is processed differently according to its nature in order, in any case, to output an analogue signal (V o ) acceptable by the regulation and control circuit (Z) which pilots the motor (M).

    摘要翻译： 接口电路（IC）具有用于接收模拟或数字（PWM）控制信号（Vin）指示所述电机（M）的转动所需的速度的单个输入端（i）中。 类型输入信号（Vin）的由（C1，C2）的比较器电路来识别。 输入信号（Vin）的处理方式不同雅丁其性质，以便在任何情况下，以输出到模拟信号（VO）通过调节和控制电路（Z）上可接受的哪些导频的马达（M）。