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    High-efficiency regulated voltage-boosting device
    4.
    发明公开
    High-efficiency regulated voltage-boosting device 审中-公开
    Hocheffiziente regulierteSpannungserhöhungsvorrichtung

    公开(公告)号：EP1298777A1

    公开(公告)日：2003-04-02

    申请号：EP01830613.4

    申请日：2001-09-28

    申请人： STMicroelectronics S.r.l.

    发明人： Pulvirenti, Francesco ,  Bontempo, Gregorio

    IPC分类号： H02M3/07 ,  G09G3/36

    CPC分类号： H02M3/073 ,  G09G3/36 ,  G09G3/3696 ,  G09G2330/02 ,  G09G2330/021 ,  H02M2001/0022 ,  Y10T307/747

    摘要： A regulated voltage-boosting device including a charge-pump circuit (11), which has an input terminal (4a) receiving a first voltage (V DD ) and an output terminal (4b) supplying a second voltage (V LCD ) higher than said first voltage (V DD ), and being provided with a plurality of voltage-boosting stages (17) that can be selectively activated and deactivated. The regulated voltage-boosting device moreover comprises an automatic-selection circuit (10) for activating a number of voltage-boosting stages (17) which is correlated to the first voltage (V DD ) and to the second voltage (V LCD ).

    摘要翻译： 一种包括电荷泵电路（11）的稳压升压装置，其具有接收第一电压（VDD）的输入端（4a）和提供高于所述第一电压（VDD）的第二电压（VLCD）的输出端（4b） （VDD），并且设置有可以选择性地激活和去激活的多个升压级（17）。 调节升压装置还包括用于激活与第一电压（VDD）和第二电压（VLCD）相关的多个升压级（17）的自动选择电路（10）。

    A circuit for detecting digital signals, particularly for a system with an ASI field bus
    5.
    发明公开
    A circuit for detecting digital signals, particularly for a system with an ASI field bus 有权
    Schaltung zur digitalen Signalerkennung insbesonderefürSystem mit ASI-Feldbus

    公开(公告)号：EP1001506A1

    公开(公告)日：2000-05-17

    申请号：EP98830672.6

    申请日：1998-11-09

    申请人： STMicroelectronics S.r.l.

    发明人： Pulvirenti, Francesco ,  Bontempo, Gregorio ,  Palumbo, Gaetano

    IPC分类号： H02J13/00

    CPC分类号： H02J13/0003

    摘要： A circuit for detecting signals present on a bifilar voltage-supply and signal-transmission line, in which the signals are constituted by positive and negative variations of the supply potential of at least one of the wires of the line (2), comprises: a low-pass filter (20) connected to the two wires of the line in order to supply, at an output terminal of the filter, a constant reference potential (V+) substantially equal to the supply potential of a preselected one of the two wires, a first threshold comparator (21) having a reference input terminal (27) and a threshold input terminal (29) connected, respectively, to the output terminal (18) of the filter (20) and to the preselected wire of the two wires, and a second threshold comparator (22) having a reference input terminal (28) and a threshold input terminal (30) connected, respectively, to the preselected wire of the two wires and to the output terminal (18) of the filter (20).
    The circuit is relatively simple, does not require synchronization signals, and can be formed as an integrated circuit, taking up a limited area.

    摘要翻译： 用于检测出现在双向电压和信号传输线上的信号的电路，其中信号由线（2）的至少一根电线的供电电位的正和负变化构成，包括： 低通滤波器（20）连接到线路的两条线，以便在滤波器的输出端处提供基本上等于两条线中预选的电源的电位的恒定参考电位（V +）， 具有参考输入端子（27）和阈值输入端子（29）的第一阈值比较器（21）分别连接到滤波器（20）的输出端子（18）和两根导线的预选导线， 以及具有参考输入端子（28）和阈值输入端子（30）的第二阈值比较器（22）分别连接到两根导线的预选导线和滤波器（20）的输出端子（18） 。 电路比较简单，不需要同步信号，可以形成集成电路，占用有限的区域。

    Power supply device with detection of malfunctioning
    8.
    发明公开
    Power supply device with detection of malfunctioning 有权
    Stromversorgungsgerätmit Fehlfunktionserkennung

    公开(公告)号：EP1178591A1

    公开(公告)日：2002-02-06

    申请号：EP00830547.6

    申请日：2000-07-31

    申请人： STMicroelectronics S.r.l.

    发明人： Bontempo, Gregorio ,  Adragna, Claudio ,  Fagnani, Mauro ,  Pidutti, Albino ,  Pulvirenti, Francesco ,  Quaglino, Roberto ,  Gattavari, Giuseppe

    IPC分类号： H02M3/28

    CPC分类号： H02M3/28 ,  H02M1/32 ,  H02M3/33523

    摘要： The power supply device comprises a DC-DC converter circuit (8) including a power switch (10) and a driving stage (102). The driving stage (102) has a compensation terminal (102b) on which a compensation voltage (V COMP ) is present and which receives a biasing current (I P ), said driving stage (102) comprising a control circuit (107) having an output terminal connected to a control terminal (11) of the power switch (10) and disconnection-detecting means (105) connected to said compensation terminal (102b) and generating a signal for permanent turning-off of said power switch (10) when the biasing current (I P ) drops below a current-threshold value (I T ). The driving stage (102) moreover comprises over-voltage detecting means (104) connected to the compensation terminal (102b) and generating a signal for temporary turning-off of said power switch (10) when said compensation voltage (V COMP ) exceeds a voltage-threshold value (V T ).

    摘要翻译： 电源装置包括包括电源开关（10）和驱动级（102）的DC-DC转换器电路（8）。 驱动级（102）具有在其上存在补偿电压（VCOMP）并且接收偏置电流（IP）的补偿端子（102b），所述驱动级（102）包括具有输出端子 连接到所述电源开关（10）的控制端子（11）和连接到所述补偿端子（102b）的断开检测装置（105），并且当所述偏置 当前（IP）下降到当前阈值（IT）以下。 驱动级（102）还包括连接到补偿端子（102b）的过电压检测装置（104），并且当所述补偿电压（VCOMP）超过电压时产生用于暂时关断所述电源开关（10）的信号 - 阈值（VT）。