中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

83 records (took 0.045 seconds)

    Driving circuit for electric load and system comprising the circuit
    17.
    发明专利
    Driving circuit for electric load and system comprising the circuit 审中-公开
    用于电力负载和包含电路的系统的驱动电路

    公开(公告)号：JP2011030227A

    公开(公告)日：2011-02-10

    申请号：JP2010168707

    申请日：2010-07-27

    Applicant: Stmicroelectronics Srl ,  エスティーマイクロエレクトロニクス エス.アール.エル.STMicroelectronics S.r.l.

    Inventor： AMIGHINI MATTEO ,  POMA ALBERTO ,  DI BIASE GIUSEPPE ,  POLETTO VANNI

    IPC: H03K17/695 ,  H03K17/00

    CPC classification number: H02H5/10 ,  H02H7/12 ,  H02M3/156 ,  H02M2003/1555

    Abstract: PROBLEM TO BE SOLVED: To provide a driving circuit for an electric load, which detects a state of a load connected erroneously.
    SOLUTION: An electronic circuit (100) is disclosed, having: a node (EX) connectable to a load (LD) to be driven; and a power device (PD) with a first terminal connected to the node, to be switched between activation and deactivation. The circuit further has: a current generator (I) having an output connected to the node, which can be switched to an enabled state, at least when the power device is deactivated; and a comparator (CP) for comparing a voltage of the node (V(EX)) with a reference voltage (V(REF)). The comparator is configured to obtain comparison results (RESETN), from which a distinct condition of electric connection of the load to the node is detected.
    COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题：提供用于检测错误连接的负载的状态的电负载的驱动电路。 解决方案：公开了一种电子电路（100），其具有：可连接到待驱动的负载（LD）的节点（EX） 以及具有连接到节点的第一终端的功率设备（PD），以在激活和去激活之间切换。 该电路还具有：电流发生器（I），具有连接到该节点的输出端，该输出端可以切换到使能状态，至少当功率设备被去激活时; 以及用于将节点（V（EX））的电压与参考电压（V（REF））进行比较的比较器（CP）。 比较器被配置为获得比较结果（RESETN），从而检测负载与节点的电连接的不同条件。 版权所有（C）2011，JPO＆INPIT

    Digital noise protection circuit and method
    18.
    发明专利
    Digital noise protection circuit and method 审中-公开
    数字噪声保护电路及方法

    公开(公告)号：JP2011019212A

    公开(公告)日：2011-01-27

    申请号：JP2010102336

    申请日：2010-04-27

    Applicant: Stmicroelectronics Srl ,  エスティーマイクロエレクトロニクス エス.アール.エル.STMicroelectronics S.r.l.

    Inventor： CAULI ARBER ,  PRANDI LUCIANO ,  CAMINADA CARLO

    IPC: H04B1/10 ,  H03F1/26 ,  H03K5/1252

    CPC classification number: H03K19/173 ,  H03K5/1252

    Abstract: PROBLEM TO BE SOLVED: To provide a method of protection from noise of a digital signal generated by a comparator.SOLUTION: The method of protection from noise of a digital signal (Vcomp) includes: a step of generating an output signal (Vout) which switches from a first logic state to a second logic state at a first switching of logic state of the digital signal (Vcomp) generated by a comparator 1; a step of detecting a change from the first logic state to the second logic state of the output signal (Vout); and a step of inhibiting further switchings of the output signal (Vout) for a first time interval after change from the first logic state to the second logic state.

    Abstract translation: 要解决的问题：提供一种防止由比较器产生的数字信号的噪声的方法。解决方案：防止数字信号（Vcomp）的噪声的方法包括：产生输出信号（Vout）的步骤，其中， 在由比较器1产生的数字信号（Vcomp）的逻辑状态的第一次切换时，从第一逻辑状态切换到第二逻辑状态; 检测从输出信号（Vout）的第一逻辑状态到第二逻辑状态的变化的步骤; 以及在从第一逻辑状态改变到第二逻辑状态之后，在第一时间间隔之后禁止进一步切换输出信号（Vout）的步骤。

Patent Agency Ranking