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12 条记录 (耗时 0.011 秒)

    A circuit for controlling the maximum current in a power-MOS transistor used for driving a load connected to ground
    3.
    发明公开
    A circuit for controlling the maximum current in a power-MOS transistor used for driving a load connected to ground 失效
    电路，用于控制在功率MOS晶体管具有连接到地的负载的最大电流。

    公开(公告)号：EP0574646A1

    公开(公告)日：1993-12-22

    申请号：EP92830308.0

    申请日：1992-06-16

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

    发明人： Poma, Alberto ,  Poletto, Vanni ,  Morelli, Marco

    IPC分类号： H03K17/06 ,  H03K17/08

    CPC分类号： H03K17/0822 ,  H03F1/523 ,  H03K17/063

    摘要： A resistor (R S ) is in series with the drain-source path of the MOS power transistor (M1). The supply terminal (s) of a transconductance operational amplifier (A) is connected to the output of a voltage-raising or charge pump (CP) circuit which can output a voltage higher than that of the voltage supply (V s ) to which the drain of the MOS transistor (M1) is connected. The inputs of the amplifier (A) are connected to the resistor (R S ) and its output is connected to the gate of the MOS transistor (M1) so that, in operation, the maximum current flowing through the power transistor (M1) is limited to a value proportional to a reference voltage (V R ).

    摘要翻译： 电阻器（RS）与所述MOS功率晶体管（M1）的漏极 - 源极路径系列。 跨导运算放大器（A）的电源端子（一个或多个）连接到一电压上升或电荷泵的输出（CP）电路，可输出的电压比所述电源电压（VS）到哪个漏极的高 MOS晶体管（M1）被连接。 所述放大器（A）的输入端被连接到电阻器（RS），并且其输出被连接到MOS晶体管（M1）的栅极，使得在操作中，流过功率晶体管的最大电流（M1）是有限 到正比于基准电压（VR）的值。

    An H-shaped bridge circuit with protection against crossover conduction during the reversal of the current in the load
    4.
    发明公开
    An H-shaped bridge circuit with protection against crossover conduction during the reversal of the current in the load 失效
    H形的带保护从交叉线电桥电路中的电感性负载的电流反向期间。

    公开(公告)号：EP0538618A2

    公开(公告)日：1993-04-28

    申请号：EP92115700.4

    申请日：1992-09-14

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

    发明人： Poletto, Vanni ,  Morelli, Marco ,  Poma, Alberto

    IPC分类号： H03K17/66 ,  H03K17/08 ,  H03K17/16

    CPC分类号： H02M1/38 ,  H03K17/0826 ,  H03K17/663

    摘要： The circuit includes two output terminals (OUT1, OUT2) for connection to the terminals of a load (L),
    first and second pairs of electronic power switches (Q1, Q4; Q2, Q3) which are connected between the output terminals (OUT1, OUT2) and the two poles of a direct-current voltage supply (Vs) so as to form an H-shaped structure with the load (L), and
    a driver circuit (C1, C2) for selectively making the electronic power switches of the first pair (Q1, Q4) of the second pair (Q2, Q3) order to cause a current to flow through the load (L) in one direction or the other respectively, and for preventing the electronic switches (Q1, Q3; Q2, Q4) which are connected between the same output terminal (OUT1; OUT2) and the two poles of the voltage supply (Vs) from conducting simultaneously.

    摘要翻译： 该电路包括两个输出端子（OUT1，OUT2），用于连接到负载的端子（L），第一和第二对电子功率开关（Q1，Q4; Q2，Q3）被连接在输出端子之间（OUT1， OUT2）和一个直流电压源（VS），从而形成与所述负载（L H形结构）的两个极，以及用于选择性地使得所述电子功率开关的驱动器电路（C1，C2） 第二对第一对（Q1，Q4）（Q2，Q3）为使一个电流流过负载（L）分别在一个方向或另一方向，和用于防止电子开关（Q1，Q3 Q2流动， Q4），连接在相同的输出端（OUT1之间; OUT2），并从导通同时在电源电压（VS）的两极。

    Power transistor control circuit for a voltage regulator
    5.
    发明公开
    Power transistor control circuit for a voltage regulator 失效
    LeistungstransistorsteuerschaltungfürSpannungsregler

    公开(公告)号：EP0846996A1

    公开(公告)日：1998-06-10

    申请号：EP96830610.0

    申请日：1996-12-05

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

    发明人： Milanesi, Andrea ,  Poletto, Vanni ,  Poma, Alberto ,  Morelli, Marco

    IPC分类号： G05F1/575

    CPC分类号： G05F1/575

    摘要： A voltage-regulator circuit with a low voltage drop using a DMOS power transistor (PT) driven by a charge pump (CP) comprises two feedback loops: a first feedback loop having high gain and accuracy but low response speed, and a second feedback loop having a wide passband and fast response speed but low gain.

    摘要翻译： 使用由电荷泵（CP）驱动的DMOS功率晶体管（PT）具有低压降的电压调节器电路包括两个反馈回路：具有高增益和精度但响应速度低的第一反馈环路和第二反馈回路 具有宽通带和快速响应速度但低增益。

    A circuit for driving a signaling device
    6.
    发明公开
    A circuit for driving a signaling device 失效
    Schaltungsanordnung zum Steuern einer Signaleinrichtung

    公开(公告)号：EP0829965A1

    公开(公告)日：1998-03-18

    申请号：EP96830471.7

    申请日：1996-09-17

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

    发明人： Poletto, Vanni ,  Poma, Alberto ,  Morelli, Marco

    IPC分类号： H03K17/945 ,  G01F23/00

    CPC分类号： H03K17/945 ,  G01F23/0069 ,  G01F23/0084

    摘要： A circuit for controlling the reserve lamp (LAMP) of a vehicle's fuel level indicator instrument (STR). The circuit uses a switch (SW1) controlled by an extremely asymmetric clock signal (CLK) periodically to switch, for a very short time, the signal (Rj) provided by the level sensor (SENS) towards a comparator (CMP) operable to compare this signal (Rj) with a threshold value (Rth) for the purpose of determining the state of the reserve lamp (LAMP).

    摘要翻译： 一种用于控制车辆燃料液位指示器（STR）的储备灯（LAMP）的电路。 该电路周期性地使用由非常不对称的时钟信号（CLK）控制的开关（SW1），以在非常短的时间内将由电平传感器（SENS）提供的信号（Rj）朝向可操作以比较的比较器（CMP） 该信号（Rj）具有用于确定储备灯（LAMP）的状态的阈值（Rth）。

    Circuit for ratiometric processing and driving
    7.
    发明公开
    Circuit for ratiometric processing and driving 失效
    Schaltung zurverhältniskonstantenSignalverarbeitung

    公开(公告)号：EP0822392A1

    公开(公告)日：1998-02-04

    申请号：EP96830421.2

    申请日：1996-07-30

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

    发明人： Poletto, Vanni ,  Poma, Alberto ,  Morelli, Marco

    IPC分类号： G01F23/00 ,  G01F23/30

    CPC分类号： G01F23/0061 ,  G01F23/30

    摘要： The electronic interface circuit can perform ratiometric processing and driving of a signal (Rj) generated by a fuel-level detector (GAL) of a vehicle. The circuit uses a current mirror (S) configured so as to send one half (Ij) of the output current (IL) to the input resistance (Rj) and one half of the output current (IL) to earth. The current mirror (S) is controlled by a voltage (Vj) taken from the input resistance (Rj) and by a voltage taken from a resistive divider (Ra1, Ra2), the latter voltage having been filtered by a low-pass filter (FIL), so as to achieve ratiometric processing of the input signal (Rj).

    摘要翻译： 电子接口电路可以执行比例计算处理和驱动由车辆的燃料液位检测器（GAL）产生的信号（Rj）。 电路使用电流镜（S），其配置为将输出电流（IL）的一半（Ij）发送到输入电阻（Rj），并将一半输出电流（IL）发送到地。 电流镜（S）由从输入电阻（Rj）取得的电压（Vj）和取自电阻分压器（Ra1，Ra2）的电压控制，后一电压由低通滤波器 FIL），以便实现输入信号（Rj）的比例处理。

    Driving circuit for an electric load and system comprising the circuit
    10.
    发明公开
    Driving circuit for an electric load and system comprising the circuit 有权
    最后和系统解决器Schaltungsanordnung

    公开(公告)号：EP2280468A1

    公开(公告)日：2011-02-02

    申请号：EP10170644.8

    申请日：2010-07-23

    申请人： STMicroelectronics S.r.l.

    发明人： Amighini, Matteo ,  Poma, Alberto ,  Di Biase, Giuseppe ,  Poletto, Vanni

    IPC分类号： H02H5/10 ,  H02M1/32

    CPC分类号： H02H5/10 ,  H02H7/12 ,  H02M3/156 ,  H02M2003/1555

    摘要： An electronic circuit (100) is disclosed, comprising a node (EX), which connectable to a load (LD) to be driven and a power device (PD), which can be switched between activation and deactivation and having a first terminal connected to said node. The circuit further comprises:
    a current generator (I) having an output connected to said node and that can be enabled to generation, at least when the power device is deactivated;
    a comparator (CP) of an electric voltage of said node (V(EX)) with a reference voltage (V(REF)) configured to obtain comparison signals (RESETN), from which distinct conditions of electric connection of the load to said node will be detected.

    摘要翻译： 公开了一种电子电路（100），其包括可连接到待驱动的负载（LD）和功率器件（PD）的节点（EX），其可以在激活和去激活之间切换，并且具有连接到 说节点。 所述电路还包括：电流发生器（I），其具有连接到所述节点的输出，并且至少当所述功率器件被去激活时，所述电流发生器（I）能够被产生; 配置为具有参考电压（V（REF））的所述节点（V（EX））的电压的比较器（CP），以获得比较信号（RESETN），从而从负载到所述节点的电连接的不同条件 将被检测到。