会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明公开
    • Control apparatus for a load supply device
    • RegelvorrichtungfürLastspeisungsgerät
    • EP2202886A1
    • 2010-06-30
    • EP09180404.7
    • 2009-12-22
    • STMicroelectronics Srl
    • Maiocchi, Giuseppe
    • H03M1/08H03F3/217H03M1/82H03M3/02G06F1/025G05F3/16
    • H03M1/0845H03M1/822H03M3/324H03M3/506
    • A control apparatus for a supply device (5) of a load (2), the supply device is of switching type and is connected between a supply voltage (Vdd) and a reference voltage (GND). The apparatus comprises a sigma-delta device (10) having an input terminal at which is present a first digital signal (SDin), and being capable of providing a pulse-density modulation signal (Sdout) at the output terminal; the sigma-delta device comprises a feedback circuit (11) capable of sending to the input terminal (IN) of the sigma-delta device (10) a second digital signal (SDfb) whose value depends on the value of the output signal (SDout), and the apparatus comprises means (20) capable of digitalizing said supply voltage and of providing a further digital signal (Sg). The feedback circuit (16) comprises a terminal (Ext) capable of receiving the further digital signal (Sg), and the sigma-delta device has a gain (G) such that the output digital signal (Sdout) is proportional to the inverse of said further digital signal (Sg). ( Fig. 2 )
    • 一种用于负载(2)的供给装置(5)的控制装置,所述供给装置是开关型的,并且连接在电源电压(Vdd)和参考电压(GND)之间。 该装置包括具有输入端的Σ-Δ装置(10),在该输入端处存在第一数字信号(SDin),并且能够在输出端提供脉冲密度调制信号(Sdout); Σ-Δ装置包括能够向Σ-Δ装置(10)的输入端(IN)发送第二数字信号(SDfb)的反馈电路(11),其值取决于输出信号的值(SDout ),并且该装置包括能够对所述电源电压进行数字化并提供另外的数字信号(Sg)的装置(20)。 反馈电路(16)包括能够接收另外的数字信号(Sg)的终端(Ext),并且Σ-Δ装置具有增益(G),使得输出数字信号(Sdout)与 所述另外的数字信号(Sg)。 (图2)
    • 7. 发明公开
    • LINEARITY IMPROVEMENT FOR HIGH RESOLUTION RFDAC
    • LINEARITÄTSVERBESSERUNGFÜRHOCHAUFLÖSENDESRFDAC
    • EP3148081A1
    • 2017-03-29
    • EP16184532.6
    • 2016-08-17
    • Intel IP Corporation
    • KUTTNER, Franz
    • H03M1/08H03M1/80H03M1/68
    • H03M1/0863H03M1/0845H03M1/687H03M1/806H03M7/165
    • A digital to analog converter (DAC) circuit to convert a digital input signal to an analog output signal, wherein the digital input signal comprises a plurality of Least Significant Bits (LSBs) and a plurality of Most Significant Bits (LSBs). The DAC circuit comprises a line decoder configured to receive the plurality of LSBs of the digital input signal and configured to generate line information based thereon. The DAC circuit further comprises a column decoder configured to receive the plurality of MSBs of the digital input signal and configured to generate column information based thereon. Further, the DAC circuit comprises one or more source cells arranged in a plurality of rows and a plurality of columns, wherein the one or more source cells are configured to be selectively activated and consequently generate an individual output signal based on the line information and the column information respectively.
    • 一种用于将数字输入信号转换为模拟输出信号的数模转换器(DAC)电路,其中数字输入信号包括多个最低有效位(LSB)和多个最高有效位(LSB)。 DAC电路包括线解码器,其被配置为接收数字输入信号的多个LSB,并且被配置为基于此生成线信息。 DAC电路还包括列解码器,其被配置为接收数字输入信号的多个MSB,并且被配置为基于此生成列信息。 此外,DAC电路包括以多行和多列布置的一个或多个源单元,其中一个或多个源单元被配置为选择性地激活,并且因此基于线信息生成单独的输出信号,并且 列信息。
    • 8. 发明公开
    • Method of successive approximation A/D conversion
    • Verfahren zur A / D-Umwandlung mit sukzessiverAnnäherung
    • EP2600530A1
    • 2013-06-05
    • EP11191807.4
    • 2011-12-02
    • ST-Ericsson SA
    • Zamprogno, MarcoGirardi, FrancescaMinuti, Alberto
    • H03M1/06H03M1/42
    • H03M1/466H03M1/0697H03M1/0845H03M1/42H03M1/46
    • A method (100) of SAR - Successive Approximation Register - analog to digital conversion is disclosed. The method is such to perform N+1 SAR cycles for obtaining an output digital code having N bits. The method (100) comprises a step of receiving and sampling (101) an analog signal (V in ).
      After the execution of the first N-1 SAR cycles, the method (100) comprises the steps of:
      - performing (105) the N th SAR cycle by setting (106) a N th tentative analog signal corresponding to a provisional digital code (X P ) and comparing (107) the N th tentative analog signal with the sampled analog signal thus obtaining a N th comparison result;
      - performing (108) the (N+1) th SAR cycle by setting (109) a (N+1) th tentative analog signal on the basis of the N th comparison result, comparing (110) the (N+1) th tentative analog signal with the sampled analog signal thus obtaining a second comparison result and correcting (111) the provisional digital code (X P ) on the basis of the (N+1) th comparison result for obtaining the output digital code (X c ).
      Each of the comparisons is performed is such a way that the N th and (N+1) th SAR cycles comprise a plurality sub-comparisons in such a way that at the end of each of said cycles a set of sub-results is obtained. The last two comparison results are obtained taking into account the corresponding set of sub-results.
    • 公开了SAR - 逐次近似寄存器的方法(100) - 模数转换。 该方法是执行N + 1个SAR周期以获得具有N位的输出数字码。 方法(100)包括接收和采样(101)模拟信号(V in)的步骤。 在执行第一N-1个SAR周期之后,方法(100)包括以下步骤: - 通过设置(106)对应于临时数字码的第N个暂时模拟信号(105)来执行(105)第N个SAR周期 XP),并将第N个暂定模拟信号与采样的模拟信号进行比较(107),从而获得第N个比较结果; 根据第N个比较结果,设置(109)第(N + 1)个暂定模拟信号,执行(108)第(N + 1)个SAR周期,比较(110)第(N + 1) 从而获得第二比较结果并且基于用于获得输出数字码(X c)的第(N + 1)比较结果来校正(111)临时数字码(XP)(111)。 执行每个比较是使得第N和第(N + 1)个SAR周期包括多个子比较,使得在每个所述周期的结尾处获得一组子结果 。 考虑到相应的一组子结果,获得最后两个比较结果。
    • 10. 发明公开
    • Convertisseur analogique/numérique.
    • 模拟数字-Wandler
    • EP0886382A1
    • 1998-12-23
    • EP98201890.5
    • 1998-06-08
    • Koninklijke Philips Electronics N.V.
    • Gandy, Philippe
    • H03M1/00G05F3/22
    • H03M1/0845G05F3/222H03M1/12
    • Le circuit, alimenté entre une source de tension haute (VCC) et une source de tension basse (masse), contient un convertisseur analogique/numérique (ADC) muni d'une échelle de résistances (RL) connectée entre une borne de sommet (Vtop) une borne de pied (Vbot) pour fournir une série de tensions de référence.
      Selon l'invention, ce circuit est muni d'un montage générateur de polarisation constitué par une résistance (Rmid) reliée d'un côté à la source de tension d'alimentation et de l'autre côté à une source de courant de référence (Ip0), et de moyens d'auto-régulation (A2) pour commander un élément d'impédance variable (T5) intercalé entre la connexion (Vbot) de pied de l'échelle et la masse, moyens propres à réguler la tension (FS) aux bornes de l'échelle de résistances.
      Applications : imagerie médicale, oscilloscopes, communication numérique, notamment télévision.
    • 集成的模数转换电路由高电压源(VCC)和低电压(GRND)馈电。 顶端(Vtop)和底端(Vdot)之间有一个梯形电阻网络。 有一个电压极性发生器和一个自调节电路(A2),调节在底端和地之间的可变阻抗(T5),以保持梯形电阻网络之间的电压(FS)。