AMPLIFICATEUR NUMERIQUE CLASSE D CONFIGURE POUR METTRE EN FORME DES NON-IDEALITES D'UN SIGNAL DE SORTIE

    公开(公告)号:FR2932623A1

    公开(公告)日:2009-12-18

    申请号:FR0803348

    申请日:2008-06-16

    Abstract: L'invention concerne un amplificateur (A2) comprenant un modulateur delta-sigma numérique (2), un quantificateur (QT1) recevant un signal (NSS) fourni par un étage delta-sigma (DS5) et fournissant un signal quantifié (QS), et un circuit de puissance (PA) fournissant un signal de sortie (OS). Le dispositif comprend N boucles d'état d'un premier type configurées pour renvoyer le signal de sortie (OS) à des sommateurs de N étages delta-sigma de plus faible rang, chaque boucle d'état du premier type comprenant un filtre passe-bas analogique (LPF1) pour fournir un signal de sortie filtré (FOS), un convertisseur analogique-numérique (ADC) pour fournir un signal de sortie filtré numérisé (DFOS), et au moins un filtre numérique passe-bas (DF1) pour fournir un signal de sortie filtré numérisé filtré (FDFOS1, FDFOS2, FDFOS3, FDFOSC).

    3.
    发明专利
    未知

    公开(公告)号:FR2871940B1

    公开(公告)日:2007-06-15

    申请号:FR0406684

    申请日:2004-06-18

    Abstract: The present invention relates to a floating-gate MOS transistor, comprising drain and source regions implanted into a silicon substrate, a channel extending between the drain and source regions, a tunnel oxide, a floating gate, a gate oxide and a control gate extending according to a determined gate length. According to the present invention, the control gate comprises a small gate and a large gate arranged side by side and separated by an electrically insulating material. Application to the production of memory cells without access transistor, and to the implementation of an erase-program method with reduced electrical stress for the tunnel oxide.

    7.
    发明专利
    未知

    公开(公告)号:FR2894698B1

    公开(公告)日:2008-02-29

    申请号:FR0512441

    申请日:2005-12-08

    Abstract: The method involves producing a direct voltage (Vccp) equal to a fraction of a supply voltage (Vcc) from high frequency antenna signals (S1, S2). Pumping signals (H1, H2) having a frequency lesser than the frequency of the antenna signals are produced using a low voltage oscillator (LVOSC) electrically supplied by the voltage (Vccp). The voltage (Vccp) is boosted using a charging pump (PMP2) driven by the signals (H1, H2) for obtaining the supply voltage. Independent claims are also included for the following: (1) an integrated circuit comprising an electronic circuit (2) an electronic circuit comprising a control unit (3) a portable electronic object comprising an integrated circuit.

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