中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

6 records (took 0.02 seconds)

    1.
    发明专利
    未知

    公开(公告)号：DE602006012299D1

    公开(公告)日：2010-04-01

    申请号：DE602006012299

    申请日：2006-06-30

    Applicant: ST MICROELECTRONICS SRL

    Inventor： MONDELLO ANTONINO ,  PISASALE MICHELANGELO

    IPC: G11C29/12

    Abstract: The invention relates to a method and a relative automatic regulation device of the reference sources in a non volatile memory device, for example a flash memory. The method is characterised by the following steps:: - providing, in the memory device (2), a regulation device (1) of the reference sources (5, 6, 7) and at least one start command (START) for the entry in regulation mode; - providing, on the device (2), at least one command for the selection of a corresponding reference source to be regulated; - applying an external reference signal (V REF , I REF ); - starting the automatic regulation step by means of said command (START); - detecting the result of the regulation step by means of a logic output (FAIL) of the memory device (2); - if the result of the regulation of a given source is positive, proceeding, by means of the same process steps, with the regulation of another source.

    2.
    发明专利
    未知

    公开(公告)号：DE602004004597T2

    公开(公告)日：2007-11-15

    申请号：DE602004004597

    申请日：2004-10-28

    Applicant: ST MICROELECTRONICS SRL

    Inventor： PISASALE MICHELANGELO ,  GAIBOTTI MAURIZIO ,  LA PLACA MICHELE

    IPC: G11C5/14 ,  G11C16/30

    Abstract: A voltage-down converter ( 125 ) for providing an output voltage (Vo) lower than a power supply voltage (Vdd) of the converter is proposed. The converter includes voltage regulation means ( 205 ) for obtaining an intermediate voltage (Vr) corresponding to the output voltage from the power supply voltage by controlling a variable-conductivity element ( Tr ) with a control signal (Vg) resulting from a comparison between the intermediate voltage (Vr) and a reference voltage (Vbg), and an output stage ( 220,225 1 - 225 N ) for obtaining the output voltage from the power supply voltage by controlling a further variable-conductivity element ( Tsb,T 1 - T N ) with the control signal, wherein the further variable-conductivity element has a modular structure with at least one set ( MM,ML,MH ) of multiple basic modules ( 225 1 - 225 N ), the converter further including means ( 230,SW 1 - SW N ) for enabling and/or disabling the modules of each set in succession according to a comparison between the output voltage and the intermediate voltage.

    6.
    发明专利
    未知

    公开(公告)号：DE602004004597D1

    公开(公告)日：2007-03-22

    申请号：DE602004004597

    申请日：2004-10-28

    Applicant: ST MICROELECTRONICS SRL

    Inventor： PISASALE MICHELANGELO ,  GAIBOTTI MAURIZIO ,  LA PLACA MICHELE

    IPC: G11C5/14 ,  G11C16/30

    Abstract: A voltage-down converter ( 125 ) for providing an output voltage (Vo) lower than a power supply voltage (Vdd) of the converter is proposed. The converter includes voltage regulation means ( 205 ) for obtaining an intermediate voltage (Vr) corresponding to the output voltage from the power supply voltage by controlling a variable-conductivity element ( Tr ) with a control signal (Vg) resulting from a comparison between the intermediate voltage (Vr) and a reference voltage (Vbg), and an output stage ( 220,225 1 - 225 N ) for obtaining the output voltage from the power supply voltage by controlling a further variable-conductivity element ( Tsb,T 1 - T N ) with the control signal, wherein the further variable-conductivity element has a modular structure with at least one set ( MM,ML,MH ) of multiple basic modules ( 225 1 - 225 N ), the converter further including means ( 230,SW 1 - SW N ) for enabling and/or disabling the modules of each set in succession according to a comparison between the output voltage and the intermediate voltage.

Patent Agency Ranking