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    Electric filter with blocking behavior for predetermined rejection frequency
    1.
    发明专利
    Electric filter with blocking behavior for predetermined rejection frequency 审中-公开
    具有阻塞行为的电动过滤器用于预定的拒收频率

    公开(公告)号：JP2003069387A

    公开(公告)日：2003-03-07

    申请号：JP2002189634

    申请日：2002-06-28

    Applicant: Stmicroelectronics Gmbh ,  エスティーマイクロエレクトロニクス ゲゼルシャフト ミット ベシュレンクテル ハフツング

    Inventor： HENKEL JOHANN

    IPC: H03H17/02 ,  H03L7/093

    CPC classification number: H03H17/025 ,  H03H17/0288

    Abstract: PROBLEM TO BE SOLVED: To provide a filter that needs relatively low circuit expenditure and has high stability with respect to oscillation tendency. SOLUTION: This electric filter with blocking behavior for a predetermined rejection frequency comprises a series connection including a FIR filter and an IIR filter, with the parameters of the FIR filter being matched in essence with respect to the blocking behavior at the rejection frequency and the parameters of the IIR filter being matched in essence with respect to the low- pass behavior. It is possible with such a filter to obtain good low-pass behavior with very high attenuation of the frequency to be rejected.

    Abstract translation: 要解决的问题：提供一种需要相对低的电路消耗并且相对于振荡趋势具有高稳定性的滤波器。 解决方案：具有针对预定抑制频率的阻塞行为的电滤波器包括包括FIR滤波器和IIR滤波器的串联连接，FIR滤波器的参数本质上与拒绝频率处的阻塞行为和参数相匹配 IIR滤波器本质上与低通行为相匹配。 这种滤波器可以获得良好的低通行为，具有非常高的被拒绝频率的衰减。

    Dc converter
    2.
    发明专利
    Dc converter 有权
    直流转换器

    公开(公告)号：JP2000078842A

    公开(公告)日：2000-03-14

    申请号：JP22083999

    申请日：1999-08-04

    Applicant: Stmicroelectronics Gmbh ,  エスティーマイクロエレクトロニクス ゲゼルシャフト ミット ベシュレンクテル ハフツング

    Inventor： RICHTER PETER ,  TEISSIER MAXIME

    IPC: H02M3/28 ,  H02M3/156

    CPC classification number: H02M3/1563

    Abstract: PROBLEM TO BE SOLVED: To provide an DC converter which does not have decoupling between an input voltage side and an output voltage side with a low power loss relative to a high input direct current voltage and can be manufactured at a relatively low cost.
    SOLUTION: A coil (TS) having a center tap (MA) at one end (TA1) and the other end (TA2), a first capacitor (C1) forming an output DC voltage, a second capacitor (C6) connected at one end with a node located between a switching device (MOS) and the coil (TS) and at the other end with the center tap (MA) of the coil (TS) via a first diode (D2), a control device (EV, PWM) for controlling on/off of the switching device (MOS) in accordance with the comparison result between the charged voltage of the second capacitor (C6) and a seference voltage, for performing pulse frequency modulation and/or puke width modulation depending on the pulse sequence, and a second diode (D1) connected between the center tap (MA) of the coil and a second input terminal (E2), are provided.
    COPYRIGHT: (C)2000,JPO

    Abstract translation: 要解决的问题：提供一种在输入电压侧和输出电压侧之间没有去耦的DC转换器，相对于高输入直流电压具有低功率损耗，并且可以以相对低的成本制造。 解决方案：一端具有中心抽头（MA）和另一端（TA2）的线圈（TS），形成输出直流电压的第一电容器（C1），一端连接的第二电容器（C6） 其中节点位于开关装置（MOS）和线圈（TS）之间，另一端通过第一二极管（D2）与线圈（TS）的中心抽头（MA），控制装置（EV，PWM ），用于根据第二电容器（C6）的充电电压和干扰电压之间的比较结果来控制开关装置（MOS）的导通/关断，用于根据脉冲进行脉冲频率调制和/或脉宽调制 并且连接在线圈的中心抽头（MA）和第二输入端子（E2）之间的第二二极管（D1）。

    Method and apparatus for removing noise spike
    4.
    发明专利
    Method and apparatus for removing noise spike 有权
    消除噪音的方法和装置

    公开(公告)号：JP2003078490A

    公开(公告)日：2003-03-14

    申请号：JP2002189874

    申请日：2002-06-28

    Applicant: Stmicroelectronics Gmbh ,  エスティーマイクロエレクトロニクス ゲゼルシャフト ミット ベシュレンクテル ハフツング

    Inventor： BALLAN OSCAR

    IPC: H04B15/02 ,  H03G3/34

    CPC classification number: H03G3/345

    Abstract: PROBLEM TO BE SOLVED: To remove noise spikes from a signal which varies in intensity, specially, a signal which has its amplitude modulated.
    SOLUTION: A method of removing noise spikes from an electric input signal having an AC component comprises the stages of deciding the real effective value of the input signal, low-pass-filtering the input signal, generating a variable offset value as a function of the real effective value, generating a variable threshold by superposing the variable offset value on the low-pass-filtered signal, comparing the input signal with the variable threshold, generating a spike detection signal when the input signal exceeds the variable threshold, and blanking the input signal during the occurrence of the spike detection signal.
    COPYRIGHT: (C)2003,JPO

    Abstract translation: 要解决的问题：从强度变化的信号中去除噪声尖峰，特别是具有其幅度调制的信号。 解决方案：从具有AC分量的电输入信号中去除噪声尖峰的方法包括决定输入信号的实际有效值的阶段，对输入信号进行低通滤波，产生可变偏移值作为函数 实际有效值，通过将可变偏移值叠加在低通滤波信号上，将输入信号与可变阈值进行比较，产生可变阈值，当输入信号超过可变阈值时产生尖峰检测信号，并消隐输入 在发出尖峰检测信号时发出信号。

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