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    Integrated device with trimming elements
    1.
    发明授权
    Integrated device with trimming elements 有权
    具有修剪元件的集成设备

    公开(公告)号：US6424557B2

    公开(公告)日：2002-07-23

    申请号：US72857100

    申请日：2000-11-30

    Applicant: ST MICROELECTRONICS SRL

    Inventor： CAMERA ALESSANDRO ,  SANDRI PAOLO ,  BELLOMO IGNAZIO ,  MARINO FILIPPO

    IPC: H01L21/66 ,  G11C17/00

    CPC classification number: H01L22/22

    Abstract: An integrated device comprises at least one circuit element and a plurality of trimming elements which can be connected selectively to the at least one circuit element in order to achieve a predetermined tolerance of a characteristic parameter of the at least one circuit element; the integrated device includes a plurality of electronic switches, each of which can be switched between a first state and a second state in which it activates and deactivates a corresponding one of the trimming elements, respectively, and a memory for storing an indication of the states of the electronic switches and for operating each electronic switch in the first state or in the second state according to the indication stored.

    Abstract translation: 集成装置包括至少一个电路元件和多个修整元件，其可以选择性地连接到至少一个电路元件，以便实现至少一个电路元件的特性参数的预定公差; 该集成装置包括多个电子开关，每个电子开关可以在第一状态和第二状态之间切换，在第一状态和第二状态之间，分别激活和去激活对应的修剪元件，以及用于存储状态指示的存储器 并且根据所存储的指示将每个电子开关操作在第一状态或第二状态。

    3.
    发明专利
    未知

    公开(公告)号：IT1317125B1

    公开(公告)日：2003-05-27

    申请号：ITMI20000444

    申请日：2000-03-07

    Applicant: ST MICROELECTRONICS SRL

    Inventor： CORVA GIULIO ,  CAMERA ALESSANDRO ,  BELLOMO IGNAZIO

    IPC: H02M3/156 ,  H02M3/158

    Abstract: The invention relates to a control circuit for a hysteretic switching voltage regulator, which comprises a logic circuit driving an output stage; a hysteresis comparator comparing the voltage value at the output of the regulator with a reference voltage; a current sensor for sensing, through a comparator, the current drain of a load connected to the output of the regulator. This control circuit further comprises a device for adjusting the hysteresis range of the hysteresis comparator, and a hysteresis frequency sensing and controlling logic portion connected to the output of the hysteresis comparator, the logic portion acting on the frequency adjusting device.

    4.
    发明专利
    未知

    公开(公告)号：ITMI20000444A1

    公开(公告)日：2001-09-07

    申请号：ITMI20000444

    申请日：2000-03-07

    Applicant: ST MICROELECTRONICS SRL

    Inventor： CAMERA ALESSANDRO ,  BELLOMO IGNAZIO ,  CORVA GIULIO

    IPC: H02M3/156 ,  H02M3/158

    Abstract: The invention relates to a control circuit for a hysteretic switching voltage regulator, which comprises a logic circuit driving an output stage; a hysteresis comparator comparing the voltage value at the output of the regulator with a reference voltage; a current sensor for sensing, through a comparator, the current drain of a load connected to the output of the regulator. This control circuit further comprises a device for adjusting the hysteresis range of the hysteresis comparator, and a hysteresis frequency sensing and controlling logic portion connected to the output of the hysteresis comparator, the logic portion acting on the frequency adjusting device.

    6.
    发明专利
    未知

    公开(公告)号：ITMI20000444D0

    公开(公告)日：2000-03-07

    申请号：ITMI20000444

    申请日：2000-03-07

    Applicant: ST MICROELECTRONICS SRL

    Inventor： CAMERA ALESSANDRO ,  BELLOMO IGNAZIO ,  CORVA GIULIO

    IPC: H02M3/156 ,  H02M3/158

    Abstract: The invention relates to a control circuit for a hysteretic switching voltage regulator, which comprises a logic circuit driving an output stage; a hysteresis comparator comparing the voltage value at the output of the regulator with a reference voltage; a current sensor for sensing, through a comparator, the current drain of a load connected to the output of the regulator. This control circuit further comprises a device for adjusting the hysteresis range of the hysteresis comparator, and a hysteresis frequency sensing and controlling logic portion connected to the output of the hysteresis comparator, the logic portion acting on the frequency adjusting device.

    7.
    发明专利
    未知

    公开(公告)号：ITMI20021540A1

    公开(公告)日：2004-01-12

    申请号：ITMI20021540

    申请日：2002-07-12

    Applicant: ST MICROELECTRONICS SRL

    Inventor： BELLOMO IGNAZIO ,  MARIANI ADALBERTO

    IPC: H02M3/158

    Abstract: A multiphase buck type voltage regulator having at least two phases and including a first switching means that selectively connect a supply voltage to a load through a first current path; a second switching means that selectively connect said supply voltage to said load through a second current path; a first activation circuit that activates said first switching means; a first delay circuit that deactivates said first switching means after a first period of time; a second activation circuit that activates said second switching means; a second delay circuit that after a second period of time deactivates said second switching means; said first period of time depends on said supply voltage and on the output voltage; said second period of time depends on said supply voltage and on a voltage proportional to the difference of current that flows in said first and second current path.

    9.
    发明专利
    未知

    公开(公告)号：ITMI20010057A1

    公开(公告)日：2002-07-15

    申请号：ITMI20010057

    申请日：2001-01-15

    Applicant: ST MICROELECTRONICS SRL

    Inventor： BELLOMO IGNAZIO ,  CORVA GIULIO

    IPC: G05F1/46

    Abstract: The present invention relates a monostable circuit adapted to provide a delay having a length inversely proportional to an input signal, characterized by comprising generating means (21, 22) adapted to generate a signal proportionally to an input signal (Vin) and to a corrective factor (35), comparing means (23) adapted to compare the value of said signal with a prefixed value range (Imin, Imax) and correcting means (24) adapted to correct said corrective factor (35) in the case that the value of said signal is out of said prefixed value range (Imin, Imax).

    10.
    发明专利
    未知

    公开(公告)号：ITMI20001922A1

    公开(公告)日：2002-03-01

    申请号：ITMI20001922

    申请日：2000-08-29

    Applicant: ST MICROELECTRONICS SRL

    Inventor： BELLOMO IGNAZIO ,  CORVA GIULIO ,  VILLA FRANCESCO

    IPC: H03K17/0412 ,  H03K17/0814 ,  H03K17/687

    Abstract: A driver circuit drives at least one power switch, which circuit comprises a final stage including a complementary pair of power transistors connected to said switch at a common output node. Advantageously, this circuit comprises a respective power-on buffer stage, connected in upstream of each of the power transistors, and a power-on detector associated with each power transistor, the detector associated with one of the power transistors being connected to the buffer stage of the complementary one of the transistors to prevent the power transistors from being turned on simultaneously.

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