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    Control method of the current flow in driver systems for brushless motors, particularly during the switching phase
    1.
    发明公开
    Control method of the current flow in driver systems for brushless motors, particularly during the switching phase 有权
    为用于无刷电动机的驱动系统的电流流动调节过程，特别是在切换阶段

    公开(公告)号：EP1139558A1

    公开(公告)日：2001-10-04

    申请号：EP00830247.3

    申请日：2000-03-31

    Applicant: STMicroelectronics S.r.l.

    Inventor： Genova, Angelo ,  Pidutti, Albino ,  Novelli, Aldo

    IPC: H02P6/14

    CPC classification number: H02P6/14 ,  H02P6/28

    Abstract: The present invention relates to a current (I) control method for drive systems of multi-phase brushless motors, in particular at phase switching, wherein the motor coils (1,2,3) led to a common node (D) are driven by applying a respective drive voltage to the free end (A,B,C) of each coil (1,2,3) via corresponding power stages (4,5,6). The method comprises switching the current flow from one phase (1-2) to the next (1-3) in the direction of rotation of the motor at the phase switch, thereby forcing the unaffected one (2) of said coils by the phase switch into a state of high impedance.
    Advantageously, the decreasing rate of the current (I2) in the coil (2) unaffected by the phase switch can be twice as high as the decreasing rate of the current (I1) in the phase being switched from.

    Abstract translation: 本发明涉及一种电流（I）控制在相位切换多相无刷电动机的驱动系统中，在特定的方法，worin电动机线圈（1,2,3）导致由驱动的公共节点（D） 经由对应的功率级（4,5,6）施加respectivement驱动电压施加到每个线圈（1,2,3）的自由端（A，B，C）。 该方法包括从一个阶段（1-2）中的电流切换到在马达的旋转方向的下一个（1-3）在相位开关，由此迫使未受影响的那些（2）所述线圈由相位的 切换到高阻抗状态。 有利的是，电流（I 2）的在线圈中的降低率（2）由相位开关不受影响可以是两倍高的相位减小电流（I1）的速率被切换。

    Transition mode power factor correction device in switching power suppliers.
    3.
    发明公开
    Transition mode power factor correction device in switching power suppliers. 审中-公开
    Ubergangsmodus-Leistungsfaktorkorrekturvorrichtung在Schaltnetzteilen

    公开(公告)号：EP1387477A1

    公开(公告)日：2004-02-04

    申请号：EP02425510.1

    申请日：2002-08-01

    Applicant: STMicroelectronics S.r.l.

    Inventor： Fagnani, Mauro ,  Pidutti, Albino ,  Adragna, Claudio

    IPC: H02M1/12

    CPC classification number: H02M1/4225 ,  Y02B70/126

    Abstract: A device for the correction of the power factor in power supply units with forced switching operating in transition mode is described. The device comprises a converter (20) and a control device (100) coupled to said converter so as to obtain from an alternating network input voltage (Vin) a regulated output voltage (Vout) on the output terminal. The converter (20) comprises a power transistor (M) and the control device (100) comprises a pilot circuit (51) suitable for determining the period of switched-on time (Ton) and the period of switched-off time (Toff) of said power transistor (M) and control means (50) coupled to said pilot circuits (51) and with said converter and which are capable of prolonging said period of switched-on time (Ton) of the power transistor (M) at the instants of time in which the alternating network voltage (Vin) substantially assumes the value zero.

    Abstract translation: 描述用于在转换模式下强制切换操作的电源单元中功率因数校正的装置。 该装置包括转换器（20）和耦合到所述转换器的控制装置（100），以便从输出端子上的交变网络输入电压（Vin）获得稳定的输出电压（Vout）。 转换器（20）包括功率晶体管（M），并且控制装置（100）包括适于确定接通时间（Ton）的周期和关断时间（Toff）的周期的导频电路（51） 所述功率晶体管（M）和与所述导频电路（51）和所述转换器耦合的所述功率晶体管（M）和控制装置（50）能够延长所述功率晶体管（M）的所述接通时间（Ton） 交变网络电压（Vin）基本上呈现零值的时刻。

    A method and a circuit architecture for testing an integrated circuit comprising a programmable, non-volatile memory
    4.
    发明公开
    A method and a circuit architecture for testing an integrated circuit comprising a programmable, non-volatile memory 审中-公开
    方法和用于Schalterkreisarchitekur与可编程，非易失性存储器测试集成电路

    公开(公告)号：EP1128391A1

    公开(公告)日：2001-08-29

    申请号：EP00830124.4

    申请日：2000-02-22

    Applicant: STMicroelectronics S.r.l.

    Inventor： Camera, Alessandro ,  Sandri, Paolo ,  Bellomo, Ignazio ,  Pidutti, Albino

    IPC: G11C29/00

    CPC classification number: G11C29/50004 ,  G06F2201/81 ,  G11C16/04 ,  G11C29/50

    Abstract: A method of testing an integrated circuit (1; 100) comprising a programmable, non-volatile memory with a matrix (2; 20) of memory cells comprises a step of programming substantially all of the memory cells of the matrix (2; 20), and a step of accessing the programmed memory cells in order to identify the lowest threshold voltage of the programmed cells, the latter step providing for the addressing, in succession, of all of the locations of the memory of which the memory cells have been programmed and, for each location addressed: a) the supply of an initial selection voltage definitely lower than the lowest threshold voltage to a line (WL; WL1-WL8) of the matrix (2; 20) corresponding to the location currently addressed, b) a reading of the cells of the location currently addressed with the use of reading circuits (SA; 21) of the memory, c) repetition of step b), progressively increasing the selection voltage supplied to the line (WL; WL1-WL8) of the matrix (2; 20) corresponding to the location currently addressed until it is detected that at least one of the bits of the location currently addressed has switched, the selection voltage for which the switching is detected being the lowest threshold voltage, d) comparison of the lowest threshold voltage of the location currently addressed with a stored value corresponding to the lowest of the lowest threshold voltages of the locations previously addressed, and e) storage of the lowest threshold voltage of the location currently addressed if it is lower than the stored value.

    Abstract translation: 集成电路的测试方法，（1; 100）;存储器单元基本上包括编程的步骤中的所有矩阵的存储器单元（2; 20），包括一个可编程的，非易失性存储器与基质（20 2） 和访问编程的存储器单元，以便识别所述编程的单元的最低阈值电压的步骤中，将后一步骤提供用于寻址，连续，所有这些存储器的位置中的存储器单元已经被编程 并且，对于寻址每个位置：a）一个初始选择电压肯定高于最低阈值电压低的到线（WL的供应;所述基质（2 WL1-WL8）;当前被寻址的对应于所述位置20），b）中 （SA; 21）的位置的单元的读出当前与使用读取电路的寻址的存储器中，c）将步骤b的重复）逐步增加提供给线（WL选择电压;的WL1-WL8） 所述基质（2; 20）到相应的 当前被寻址，直到检测到它的位置没有当前被寻址的位置的比特中的至少一个已切换，对于其中检测为最低的阈值电压的切换选择电压，d）中的位置的最低阈值电压的比较当前被寻址的 与存储的值对应于最低此前讨论过的位置的最低阈值电压的，以及e）如果它小于所存储的值的情况下，当前被寻址的位置的最低阈值电压的存储。

    Transition mode power factor correction device in switching power suppliers
    7.
    发明公开
    Transition mode power factor correction device in switching power suppliers 审中-公开
    开关电源中的过渡模式功率因数校正装置

    公开(公告)号：EP1387476A1

    公开(公告)日：2004-02-04

    申请号：EP02425509.3

    申请日：2002-08-01

    Applicant: STMicroelectronics S.r.l.

    Inventor： Pidutti, Albino ,  Adragna, Claudio ,  Fagnani, Mauro

    IPC: H02M1/12

    CPC classification number: H02M1/4225 ,  Y02B70/126

    Abstract: A device is described for the correction of the power factor in power supply units with forced switching operating in transition mode. Said device comprises a converter (20) and a control device (100, 500) coupled with said converter (20) so as to obtain a regulated voltage (Vout) on the output terminal from an alternating network input voltage (Vin). The converter (20) comprises a power transistor (M) whilst the control device (100, 500) comprises a pilot circuit (3, 5, 6) suitable for determining the switch-on time (Ton) and the switch-off time (Toff) of the power transistor (M). The control device (100, 500) furthermore comprises control means (200, 400, 600) coupled with said pilot circuit (3, 5, 6) and with said converter (20) and capable of prolonging the switch-on time (Ton) of the power transistor (M) at the instants of time wherein the alternating network voltage (Vin) substantially takes on the value zero.

    Abstract translation: 描述了一种装置，用于在强制切换操作在过渡模式下修正电源单元中的功率因数。 所述设备包括转换器（20）和与所述转换器（20）耦合的控制设备（100,500），以从交流网络输入电压（Vin）获得输出端子上的经调节电压（Vout）。 所述转换器（20）包括功率晶体管（M），而所述控制装置（100,500）包括适合于确定所述接通时间（Ton）和所述关断时间的导频电路（3,5,6） Toff）的功率晶体管（M）。 控制装置（100,500）还包括与所述导频电路（3,5,6）和所述转换器（20）耦合并且能够延长接通时间（Ton）的控制装置（200,400,600） 其中交流网络电压（Vin）基本上取值为零的时刻。

    Circuit for the programmable protection of output overvoltages in a power factor corrector
    8.
    发明公开
    Circuit for the programmable protection of output overvoltages in a power factor corrector 审中-公开
    Schaltung zum programmierbaren Schutz gegenAusgangüberspannungenin einer Leistungsfaktor-korrekturschaltung

    公开(公告)号：EP1387475A1

    公开(公告)日：2004-02-04

    申请号：EP02425506.9

    申请日：2002-08-01

    Applicant: STMicroelectronics S.r.l.

    Inventor： Pidutti, Albino ,  Beria, Stefano

    IPC: H02M1/12 ,  H02M3/156

    CPC classification number: H02M1/4225 ,  Y02B70/126 ,  Y02P80/112

    Abstract: The present invention refers to a switching power supply, in particular to a power factor corrector (PFC), and more particularly to a circuit for the programmable protection of output overvoltages. It also refers to a power factor corrector integrated circuit comprising a circuit for the programmable protection of output overvoltages.
    In one embodiment the circuit for the programmable protection of output overvoltages in a power factor corrector comprises means (R1, R2) for detecting a signal proportional to the output voltage; a first preset reference voltage (Vref1); a second preset reference voltage (Vref2); a transconductance amplifier (18) which receives in input said signal proportional to the output voltage and said first preset reference voltage (Vref1); a comparator (21) which receives in input said signal proportional to the output voltage and said second preset reference voltage (Vref2); means (Rint) suitable for absorbing a current coming from said signal proportional to the output voltage.

    Abstract translation: 本发明涉及一种开关电源，特别是功率因数校正器（PFC）的开关电源，更具体地说，涉及用于可编程保护输出过电压的电路。 它还涉及功率因数校正器集成电路，其包括用于可编程保护输出过电压的电路。 在一个实施例中，功率因数校正器中用于可编程保护输出过电压的电路包括用于检测与输出电压成比例的信号的装置（R1，R2） 第一预设参考电压（Vref1）; 第二预设参考电压（Vref2）; 跨导放大器（18），其在输入端接收与输出电压成比例的信号和所述第一预置参考电压（Vref1）; 比较器（21），其在输入端接收与所述输出电压和所述第二预置参考电压（Vref2）成比例的所述信号; 适用于吸收来自与输出电压成正比的信号的电流（Rint）。

    A system for driving a reactive load
    10.
    发明公开
    A system for driving a reactive load 失效
    系统zur Versorgung einer reaktiven Last

    公开(公告)号：EP0920103A1

    公开(公告)日：1999-06-02

    申请号：EP97830628.0

    申请日：1997-11-28

    Applicant: STMicroelectronics S.r.l.

    Inventor： Pidutti, Albino ,  Scurati, Mario

    IPC: H02J1/00 ,  H05B33/08

    CPC classification number: H05B33/08 ,  Y10T307/839

    Abstract: The system comprises means (3, G1, G2, 12) for the controlled supply of the reactive load (Cl), for supplying variable quantities of energy to the load in a predetermined manner, reactive components (Cr, Lr) which are connected to the load (Cl) by means of a controllable electronic switch (T3) and which form a resonant circuit with the load when the electronic switch (T3) is closed, means (10) for activating the electronic switch (T3), and a control unit (14) which coordinates the operation of the controlled supply means and of the activation means in accordance with a predetermined program. The system enables the load to be driven with a particularly low power dissipated.

    Abstract translation: 该系统包括用于受控供应无功负载（C1）的装置（3，G1，G2，12），用于以预定的方式向负载提供可变量的能量，反应部件（Cr，Lr） 通过可控电子开关（T3）的负载（C1），并且当电子开关（T3）关闭时与负载形成谐振电路，用于启动电子开关（T3）的装置（10）和控制 单元（14），其根据预定程序协调受控供应装置和激活装置的操作。 该系统能够以特别低的功率耗散驱动负载。

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