中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

7 records (took 0.02 seconds)

    Method of controlling a step-up DC-DC converter and related converter
    3.
    发明公开
    Method of controlling a step-up DC-DC converter and related converter 审中-公开
    韦尔法罕zur Steuerung eines DC / DC-Aufwärtswandlersund entsprechender Wandler

    公开(公告)号：EP2012415A2

    公开(公告)日：2009-01-07

    申请号：EP08104601.3

    申请日：2008-07-02

    Applicant: STMicroelectronics S.r.l.

    Inventor： Alessandro, Agatino Antonino ,  Ribellino, Calogero

    IPC: H02M1/15 ,  H02M3/155 ,  H02M3/156

    CPC classification number: H02M3/155 ,  H02M1/15 ,  H02M3/156

    Abstract: The value of the maximum current through an energy storage inductor of a DC-DC step-up converter is increased stepwise up to attain a maximum pre-established value. A relatively low current threshold is thus set in presence of a load that absorbs a relatively small current and a higher current threshold when the load absorbs a relatively large current.
    The output voltage of the converter and the inductor voltage are compared with respective thresholds, thus depending from the result of these distinct comparisons, the ripple of the output voltage of the converter is effectively limited by adjusting the comparison threshold of the inductor voltage.
    The number of occurrences of the output voltage of the converter reaching its respective threshold is down counted and the number of occurrences of the inductor voltage reaching its respective threshold is up-counted: when the resulting count attains a certain value, the comparison threshold of the inductor voltage is incremented and the counting is reset.

    Abstract translation: 通过DC-DC升压转换器的储能电感器的最大电流的值逐步增加以达到最大预建立值。 因此，当负载吸收相对较大的电流时，在存在吸收相对小的电流和较高电流阈值的负载的情况下设置相对低的电流阈值。 将转换器的输出电压和电感电压与相应的阈值进行比较，因此根据这些不同的比较结果，通过调整电感器电压的比较阈值，有效地限制了转换器输出电压的纹波。 达到其相应阈值的转换器的输出电压的出现次数被减少，并且电感电压达到其相应阈值的出现次数被递增计数：当所得到的计数达到一定值时，比较阈值 电感电压递增，计数复位。

    Integrated circuit generating at least a voltage linear ramp having a slow rise
    4.
    发明公开
    Integrated circuit generating at least a voltage linear ramp having a slow rise 有权
    具有小节距的至少一个电压的线性斜坡产生集成电路

    公开(公告)号：EP1017172A1

    公开(公告)日：2000-07-05

    申请号：EP98830792.2

    申请日：1998-12-29

    Applicant: STMicroelectronics S.r.l.

    Inventor： Ribellino, Calogero ,  Milazzo, Patrizia ,  Pulvirenti, Francesco

    IPC: H03K4/02 ,  H03K17/16

    CPC classification number: H03K17/163 ,  H03K4/023

    Abstract: Integrated circuit (20, 80, 90) generating at least a voltage linear ramp having a slow rise of the type comprising an input terminal (21, 81, 91), connected to a first voltage reference (VREF) and an output terminal (24, 84, 94) adapted for providing a controlled ramp signal (V RAMP ), the circuit comprising at least one operational amplifier (OP3) having a non-inverting input terminal connected to said input terminal (21, 81, 91) and to an output terminal in feedback on an inverting input terminal and connected to the output terminal (24, 84, 94) of the ramp generator circuit (20, 80, 90) itself.
    The ramp voltage generator (20, 80, 90) according to the invention further comprises a first storage capacitance (Cs) connected between the non-inverting input terminal of the operational amplifier (OP3) and a ground voltage reference (GND) and loaded by means of a second pumping capacitance (Cp) inserted in parallel to said first capacitance (Cs) between the input terminal (21, 81, 91) of the ramp generator circuit (20, 80, 90) and the ground voltage reference (GND).

    Abstract translation: 集成电路（20，80，90）至少产生具有包括输入端子（21，81，91）的连接到第一参考电压（VREF）的类型的缓慢上升的电压线性斜坡和输出端子（24 （84，94）用于angepasst提供受控斜坡信号VRAMP），所述电路包括至少一个运算放大器（OP3），其具有连接到所述输入端子（21，81，91的非反相输入端子），并向输出 终端反馈到反相输入端和连接到斜坡发生器电路（20，80，90）本身的输出端（24，84，94）。 斜坡电压发生器（20，80，90）雅丁到本发明还包括连接在所述运算放大器（OP3）的非反相输入端之间的第一存储电容（Cs）等的接地参考电压（GND），并加载由 斜坡发生器电路（20，80，90）与接地电压参考的输入端（21，81，91）之间插入在平行于所述第一电容（Cs）的第二泵浦电容（CP）的装置（GND） ，

    Level shifter electronic device having a very low consumption
    5.
    发明公开
    Level shifter electronic device having a very low consumption 有权
    电脑软件

    公开(公告)号：EP0999644A1

    公开(公告)日：2000-05-10

    申请号：EP98830653.6

    申请日：1998-10-28

    Applicant: STMicroelectronics S.r.l.

    Inventor： Ribellino, Calogero ,  Milazzo, Patrizia

    IPC: H03K19/0185

    CPC classification number: H03K19/018521

    Abstract: The invention relates to a level shifter electronic device with very low consumption of current, of the type supplied between a first voltage reference (VOUT) of power supply and a second voltage reference (GND) and comprising a circuital portion (2) with differential cell having an output terminal (OUT) and at least a first (4) and a second (5) input terminal, on the output terminal a signal translated in level with respect to the signal present on one (4) of said input terminals, being drawn. The device further comprises an additional circuital portion (3) connected to a node (A) of the differential cell and comprising at least a pull-down component (9) inserted between said node and the second voltage reference (GND). The pull-down component (9) is a MOS transistor (M6) having the conduction terminals connected between said node (A) and the second voltage reference (GND) and the gate terminal connected to the first voltage reference (VOUT) of power supply by means of a series of transistors.

    Abstract translation: 本发明涉及一种在电源的第一电压基准（VOUT）和第二电压基准（GND）之间提供的类型的电流消耗非常低的电平移位器电子装置，并且包括具有差分电池的电路部分（2） 具有输出端子（OUT）和至少第一（4）和第二（5）输入端子，在输出端子上相对于存在于一个（4）所述输入端子上的信号平移的信号为 画。 该装置还包括连接到差分单元的节点（A）的附加电路部分（3），并且至少包括插入在所述节点和第二参考电压（GND）之间的下拉组件（9）。 下拉元件（9）是具有连接在所述节点（A）和第二电压基准（GND）之间的导通端子的MOS晶体管（M6），并且连接到电源的第一电压基准（VOUT）的栅极端子 通过一系列晶体管。

    Method and related device for charging at the same voltage two or more capacitors connected in series
    6.
    发明公开
    Method and related device for charging at the same voltage two or more capacitors connected in series 审中-公开
    在相同的电压用于装载两个或更多个串联连接的电容器的方法和相应的装置

    公开(公告)号：EP2015434A2

    公开(公告)日：2009-01-14

    申请号：EP08104603.9

    申请日：2008-07-02

    Applicant: STMicroelectronics S.r.l.

    Inventor： Ribellino, Calogero ,  Benenati, Giovanni

    IPC: H02M3/07

    CPC classification number: H02M3/07 ,  H02J7/0019 ,  H02J7/345

    Abstract: A pump capacitor (Cpump) or alternatively an energy storing inductor (Coil) is charged by coupling it to a voltage source (VIN), thereafter the charged pump capacitor (Cpump) or energy storing inductor (Coil) is connected in parallel to one of said capacitors or capacitance cell to be charged. The sequence of different connections of the pump capacitor (Cpump) or inductor (Coil) to the charge voltage source (VIN) and to the selected one of the capacitors of the series is actuated through a plurality of coordinately controlled switches (A,B,C,D,E) that establish distinct current circulation paths, according to a switched-capacitor or switched inductor technique, all driven by respective periodic control signals, generated from a master clock signal. In charging all the capacitance cells substantially at the same time, at every charge/discharge cycle it may be decided which capacitance or cell is going to be charged by connecting in parallel thereto the charged pump capacitor (Cpump) or charged inductor (Coil), depending on the voltages detected on each capacitance cell of a super capacitor.

    Abstract translation: 泵电容器（CPUMP），或者在能量存储电感器（线圈）由它耦合到电压源（VIN），此后带电泵电容器（CPUMP）或能量存储电感器（线圈）并联连接的一个带电 被充电的电容器，所述电容或细胞。 泵电容器（CPUMP）或电感器（线圈）的充电电压源（VIN）和串联的电容器的所选择的一个的不同的连接的序列是通过协调控制的开关的多个（A，B致动时， C，D，E）没有建立到开关电容不同的电流循环路径，gemäß或切换电感器的技术，所有的由respectivement周期性控制信号进行驱动，从主时钟信号生成的。 在基本上所有的充电的电容单元的同时，在每次充电/放电循环可以决定哪个电容或细胞是要通过与其并联的充电电容器泵（CPUMP）或带电荷的电感器（线圈）连接被充电 取决于电压上的超级电容器的电容每个细胞检测到。

Patent Agency Ranking