中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

40 records (took 0.037 seconds)

    34.
    发明专利
    未知

    公开(公告)号：IT1320529B1

    公开(公告)日：2003-12-10

    申请号：ITTO20000687

    申请日：2000-07-07

    Applicant: ST MICROELECTRONICS SRL

    Inventor： RICOTTI GIULIO ,  ROSSI SANDRO ,  FRATTINI GIOVANNI

    IPC: G11B5/55 ,  G11B21/10 ,  G11B21/21 ,  H01L41/04

    Abstract: A driving circuit for piezoelectric actuators comprises a chip of semiconductor material integrating both an interface circuit receiving at input a control signal generated by a control logic unit, and a power circuit driving the piezoelectric actuators. The power circuit is directly connected to the output of the interface circuit.

    35.
    发明专利
    未知

    公开(公告)号：DE69624493T2

    公开(公告)日：2003-06-26

    申请号：DE69624493

    申请日：1996-12-09

    Applicant: ST MICROELECTRONICS SRL

    Inventor： RAVANELLI ENRICO MARIA ,  POZZONI MASSIMO ,  PEDRAZZINI GIORGIO ,  RICOTTI GIULIO

    IPC: H01L27/04 ,  H01L21/822 ,  H01L27/02 ,  H01L27/088

    Abstract: The method described is applied to an integrated circuit formed on a substrate (10) of p-type material having at least one region (11) of n-type material with junction insulation, first electrical contact means (20,21) on the frontal surface of the substrate, second electrical contact means (14,14') on the n-type region (11) and third electrical contact means (8) on the back of the substrate connected to a reference (ground) terminal of the integrated circuit. To avoid current in the substrate due to the conduction of parasitic bipolar transistors in certain operating conditions of the integrated circuit, the method provides for monitoring the potential of the second contact means (14,14') to detect if this potential departs from the (ground) potential of the reference terminal by an amount greater than a predetermined threshold value. If this occurs the first contact means (20,21) are taken to the potential of the second contact means (14,14'), otherwise they are held at the (ground)potential of the reference terminal. A device and an integrated circuit which utilise the method are also described.

    36.
    发明专利
    未知

    公开(公告)号：DE69624493D1

    公开(公告)日：2002-11-28

    申请号：DE69624493

    申请日：1996-12-09

    Applicant: ST MICROELECTRONICS SRL

    Inventor： RAVANELLI ENRICO MARIA ,  POZZONI MASSIMO ,  PEDRAZZINI GIORGIO ,  RICOTTI GIULIO

    IPC: H01L27/04 ,  H01L21/822 ,  H01L27/02 ,  H01L27/088

    Abstract: The method described is applied to an integrated circuit formed on a substrate (10) of p-type material having at least one region (11) of n-type material with junction insulation, first electrical contact means (20,21) on the frontal surface of the substrate, second electrical contact means (14,14') on the n-type region (11) and third electrical contact means (8) on the back of the substrate connected to a reference (ground) terminal of the integrated circuit. To avoid current in the substrate due to the conduction of parasitic bipolar transistors in certain operating conditions of the integrated circuit, the method provides for monitoring the potential of the second contact means (14,14') to detect if this potential departs from the (ground) potential of the reference terminal by an amount greater than a predetermined threshold value. If this occurs the first contact means (20,21) are taken to the potential of the second contact means (14,14'), otherwise they are held at the (ground)potential of the reference terminal. A device and an integrated circuit which utilise the method are also described.

    37.
    发明专利
    未知

    公开(公告)号：ITVA20000031A1

    公开(公告)日：2002-03-07

    申请号：ITVA20000031

    申请日：2000-09-07

    Applicant: ST MICROELECTRONICS SRL

    Inventor： GENOVA ANGELO ,  GARIBOLDI ROBERTO ,  NOVELLI ALDO ,  RICOTTI GIULIO

    IPC: G01R19/165

    Abstract: The device and method monitor the current delivered to a load through a power transistor including a sense transistor. The circuit includes a disturbances attenuating circuit that has a differential stage, and first, second and third stages referenced to ground, the respective input nodes of which are connected in common to an output node of the differential stage. The third stage is formed by a transistor identical to a transistor of the first stage and delivers a current signal through a current terminal thereof, proportional to the current being delivered to the load.

    38.
    发明专利
    未知

    公开(公告)号：IT1308586B1

    公开(公告)日：2002-01-08

    申请号：ITMI990093

    申请日：1999-01-20

    Applicant: ST MICROELECTRONICS SRL

    Inventor： FONTANELLA LUCA ,  FRATTINI GIOVANNI ,  RICOTTI GIULIO

    IPC: G05F1/577 ,  H01L41/04 ,  H02M3/07 ,  H02M3/155

    Abstract: A dual supply device having a reference terminal, an input terminal for the application of a substantially constant input voltage relative to the reference terminal, a first output terminal for supplying a first supply voltage different from the input voltage, a second output terminal for supplying a second supply voltage substantially opposite to the first supply voltage a direct-current/direct-current converter connected between the input terminal and the first output terminal for converting the input voltage into the first supply voltage, and a capacitive translator connected between the first and second output terminals for translating the first supply voltage into the second supply voltage.

    39.
    发明专利
    未知

    公开(公告)号：ITTO20000687A1

    公开(公告)日：2002-01-07

    申请号：ITTO20000687

    申请日：2000-07-07

    Applicant: ST MICROELECTRONICS SRL

    Inventor： RICOTTI GIULIO ,  ROSSI SANDRO ,  FRATTINI GIOVANNI

    IPC: G11B5/55 ,  G11B21/10 ,  G11B21/21 ,  H01L41/04

    Abstract: A driving circuit for piezoelectric actuators comprises a chip of semiconductor material integrating both an interface circuit receiving at input a control signal generated by a control logic unit, and a power circuit driving the piezoelectric actuators. The power circuit is directly connected to the output of the interface circuit.

    40.
    发明专利
    未知

    公开(公告)号：ITMI990093A1

    公开(公告)日：2000-07-20

    申请号：ITMI990093

    申请日：1999-01-20

    Applicant: ST MICROELECTRONICS SRL

    Inventor： FONTANELLA LUCA ,  FRATTINI GIOVANNI ,  RICOTTI GIULIO

    IPC: G05F1/577 ,  H01L41/04 ,  H02M3/07 ,  H02M3/155

    Abstract: A dual supply device having a reference terminal, an input terminal for the application of a substantially constant input voltage relative to the reference terminal, a first output terminal for supplying a first supply voltage different from the input voltage, a second output terminal for supplying a second supply voltage substantially opposite to the first supply voltage a direct-current/direct-current converter connected between the input terminal and the first output terminal for converting the input voltage into the first supply voltage, and a capacitive translator connected between the first and second output terminals for translating the first supply voltage into the second supply voltage.

Patent Agency Ranking