中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

28 records (took 0.021 seconds)

    Nonlinear digital control circuit and method for a DC/DC converter
    2.
    发明公开
    Nonlinear digital control circuit and method for a DC/DC converter 有权
    Nichtlineare digitale Steuerschaltung und Verfahrenfüreinen Gleichstromwandler

    公开(公告)号：EP1746712A1

    公开(公告)日：2007-01-24

    申请号：EP05425515.3

    申请日：2005-07-19

    Applicant: STMicroelectronics S.r.l.

    Inventor： Marino, Filippo ,  Minieri, Marco ,  Di Blasi, Giuseppe Maria ,  Boscaino, Valeria

    IPC: H02M3/157

    CPC classification number: H02M3/157

    Abstract: The control circuit for a DC/DC converter (11) has a linear-control loop (12, 14, 15), which receives a quantity to be controlled (V 0 ) and a first reference quantity (V r1 ), and generates a modulation value (DC1). A nonlinear modulation unit (13, 18-21) is activated in presence of a variation of the quantity to be controlled (V 0 ) higher than a preset intervention threshold (Vth1) and modifies in a nonlinear way the reference quantity supplied to the linear-control loop. In the case of large variation and of preset sign of the quantity to be controlled, the linear-control loop is deactivated, a signal for switching-off of the DC/DC converter (11) is initially generated, and then a false steady-state-modulation value (DC2) is supplied to the DC/DC converter.

    Abstract translation: 用于DC / DC转换器（11）的控制电路具有接收待控制量（V 0）和第一参考量（V r1）的线性控制回路（12,14,15），并产生 调制值（DC1）。 存在要控制的量（V 0）高于预设介入阈值（Vth1）的变化的非线性调制单元（13,18-21）被激活，并以非线性方式修改提供给线性的参考量 控制循环。 在大的变化和要控制的量的预设符号的情况下，线性控制回路被去激活，最初产生用于DC / DC转换器（11）关断的信号，然后， 状态调制值（DC2）被提供给DC / DC转换器。

    Electronic circuit and corresponding method for trimming an IC
    4.
    发明公开
    Electronic circuit and corresponding method for trimming an IC 有权
    Elektronische Schaltung und ihre Verfahren zur Trimmung

    公开(公告)号：EP1085413A1

    公开(公告)日：2001-03-21

    申请号：EP99830579.1

    申请日：1999-09-14

    Applicant: STMicroelectronics S.r.l.

    Inventor： Capici, Salvatore ,  Marino, Filippo

    IPC: G06F11/00 ,  G01R31/30

    CPC classification number: G01R31/30

    Abstract: The invention relates to a method and an electronic circuit for carrying out a trimming operation on integrated circuit portions (2) which are provided with at least first (D) and second (E) access terminals. The circuit of this invention comprises:

    memory elements;
    a circuit means for modifying, either temporarily or permanently, the state of the memory elements, which means includes:

    an error amplifier (4) having an input connected to the second terminal (E) for comparing an output voltage from the circuit portion (2) with an internal voltage reference (Vref),
    a comparator (5) having an input connected to the output of the error amplifier,
    a direct connection of the first terminal (D) to the comparator (5) input;

    a controlled switch (S2) between the output of the error amplifier (4) and the input of the comparator (5);
    a second comparator (15) having an input connected to the second terminal (E) and the output connected to control said controlled switch (S2);
    a control logic (18) for controlling the trimming operation;
    a serial interface (25) adapted to receive, from said first terminal (D), a data sequence relating to the trimming operation for said control logic (18), through another controlled switch (S1).

    Abstract translation: 本发明涉及一种用于在集成电路部分（2）上执行修整操作的方法和电子电路，该电路部分设置有至少第一（D）和第二（E）接入终端。 本发明的电路包括：存储元件; 暂时或永久地修改存储元件的状态的电路装置，这意味着包括：误差放大器（4），其具有连接到第二端子（E）的输入端，用于比较来自电路部分（2）的输出电压 ），具有连接到误差放大器的输出的输入的比较器（5），将第一端子（D）直接连接到比较器（5）的输入端; 在误差放大器（4）的输出端和比较器（5）的输入端之间的受控开关（S2）; 第二比较器（15），具有连接到第二端子（E）的输入端，连接的输出端用于控制所述受控开关（S2）; 用于控制修整操作的控制逻辑（18）; 适于从所述第一终端（D）通过另一控制开关（S1）接收与所述控制逻辑（18）的修整操作相关的数据序列的串行接口（25）。

    Apparatus for converting an analog signal to a digital signal, relative method and voltage regulator control circuit comprising said apparatus
    8.
    发明公开
    Apparatus for converting an analog signal to a digital signal, relative method and voltage regulator control circuit comprising said apparatus 有权
    设备，用于将模拟信号转换成数字信号对应的方法和电压调节器控制电路与该设备

    公开(公告)号：EP1615342A1

    公开(公告)日：2006-01-11

    申请号：EP04425499.3

    申请日：2004-07-09

    Applicant: STMicroelectronics S.r.l.

    Inventor： Marino, Filippo ,  Cannella, Eliana

    IPC: H03M1/20 ,  H02M3/157

    CPC classification number: H03M1/208

    Abstract: An apparatus adapted to convert an input analog signal (In) to an output digital signal (OUT) is described. The apparatus comprises means (1) adapted to convert a first digital value (d(IN1)) of the output signal of the apparatus (100) to a first analog value (IN1), said first digital value (d(IN1)) being emitted by the apparatus at a first time instant, and means for feeding back the first analog value (IN1) to the input of the apparatus. The apparatus (100) comprises first means (2, 3) adapted to determine the difference (Diff) between the first analog value (IN1) and a second analog value (IN) of the input signal of the apparatus at a second time instant successive to the first time instant, second means (4) adapted to convert said difference (Diff) to a digital value (d(Diff)) and third means (5) adapted to add or subtract said digital value (d(Diff)) of said difference to or from said first digital value (d(IN1)) by obtaining said output digital signal (OUT).

    Abstract translation: 一种装置angepasst转换为模拟信号输入（IN）到输出到数字信号（OUT）进行说明。 该装置包括：（1）angepasst为第一数字值的装置（100）的输出信号的（D（IN1））转换为第一模拟值（IN1），所述第一数字值（D（IN1））是 由该装置在第一时刻发射的装置，以及用于反馈所述第一模拟值（IN1）到该设备的输入端。 的装置（100）包括第一装置（2,3）angepasst确定性矿第一模拟值（IN1），并在第二时刻连续的装置的输入信号的第二模拟值（IN）之间的差异（差异） 到第一时刻，二手装置（4）angepasst到所述变动（Diff）转换成数字值（D（差异））和第三装置（5）angepasst添加或减去所述数字值（D（差异））的 所述差向或从所述第一数字值（D（IN1））通过获得所述输出数字信号（OUT）。

Patent Agency Ranking