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    1.
    发明专利
    未知

    公开(公告)号：DE69226746T2

    公开(公告)日：1999-01-14

    申请号：DE69226746

    申请日：1992-09-14

    Applicant: SGS THOMSON MICROELECTRONICS ,  MAGNETI MARELLI SPA

    Inventor： POLETTO VANNI ,  MORELLI MARCO ,  POMA ALBERTO

    IPC: H03K17/08 ,  H02M1/00 ,  H02M1/38 ,  H03K17/082 ,  H03K17/66 ,  H03K17/16

    Abstract: 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.

    2.
    发明专利
    未知

    公开(公告)号：DE69226746D1

    公开(公告)日：1998-10-01

    申请号：DE69226746

    申请日：1992-09-14

    Applicant: SGS THOMSON MICROELECTRONICS ,  MAGNETI MARELLI SPA

    Inventor： POLETTO VANNI ,  MORELLI MARCO ,  POMA ALBERTO

    IPC: H03K17/08 ,  H02M1/00 ,  H02M1/38 ,  H03K17/082 ,  H03K17/66 ,  H03K17/16

    Abstract: 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.

    4.
    发明专利
    未知

    公开(公告)号：BR9702840A

    公开(公告)日：1998-12-22

    申请号：BR9702840

    申请日：1997-09-05

    Applicant: SGS THOMSON MICROELECTRONICS

    Inventor： POMA ALBERTO ,  POLETTO VANNI ,  MORELLI MARCO

    IPC: G01F23/00 ,  H03K17/945

    Abstract: 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).

    6.
    发明专利
    未知

    公开(公告)号：ITTO910707D0

    公开(公告)日：1991-09-18

    申请号：ITTO910707

    申请日：1991-09-18

    Applicant: ST MICROELECTRONICS SRL ,  MARELLI AUTRONICA ,  SGS THOMSON MICROELECTRONICS

    Inventor： POMA ALBERTO ,  POLETTO VANNI ,  MORELLI MARCO

    IPC: H03K17/08 ,  H02M1/00 ,  H02M1/38 ,  H03K17/082 ,  H03K17/66

    Abstract: 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.

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