中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

13 records (took 0.02 seconds)

    Integrated device for use in a monostable circuit
    1.
    发明公开
    Integrated device for use in a monostable circuit 失效
    在einer monostabilen Schaltung verwendbare integrierte Vorrichtung

    公开(公告)号：EP0909030A1

    公开(公告)日：1999-04-14

    申请号：EP97830506.8

    申请日：1997-10-10

    Applicant: STMicroelectronics S.r.l.

    Inventor： Genova, Angelo ,  Gariboldi, Roberto ,  Cantone, Giuseppe

    IPC: H03K3/0232 ,  H03K3/355

    CPC classification number: H03K3/011 ,  H03K3/0232 ,  H03K3/355

    Abstract: Integrated device (202) for use in a monostable circuit (200), the integrated device (202) having a programming terminal (103) able to be linked to external resistive means (Rext) so as to programme the duration of a non-stable state of the circuit (200) and comprising a comparator (120) having a first (+) and a second (-) input terminal and an output terminal for generating an output signal (Vout) of the circuit (200), capacitive means (C) linked to the first input terminal (+) of the comparator (120) so as to apply thereto a voltage (Vc) correlated with the voltage on the capacitive means (C), control means (SW,115) linked to the first input terminal (+) of the comparator (120) so as to switch the circuit (200) to the non-stable state, and means (M1, M2) for sending a current (Iref1) which passes through the resistive means (Rext) to the capacitive means (C), in which the programming terminal (103) is linked to the second input terminal (-) of the comparator (120) so as to apply thereto a voltage (Vref1) correlated with the voltage on the resistive means (Rext).

    Abstract translation: 用于单稳态电路（200）的集成器件（202），该集成器件（202）具有能够连接到外部电阻器件（Rext）的编程端子（103），以便编程不稳定的持续时间 电路（200）的状态，并且包括具有第一（+）和第二（ - ）输入端子的比较器（120）和用于产生电路（200）的输出信号（Vout）的输出端子，电容装置 C）连接到比较器（120）的第一输入端（+），以便向其施加与电容装置（C）上的电压相关的电压（Vc）;与第一输入端连接的控制装置（SW，115） （120）的输入端（+），将电路（200）切换到非稳定状态;以及用于发送通过电阻装置（Rext）的电流（Iref1）的装置（M1，M2） 到电容装置（C），其中编程端子（103）连接到比较器（120）的第二输入端子（ - ），以便施加 到与电阻装置（Rext）上的电压相关的电压（Vref1）。

    Protection circuit for controlling the gate voltage of a high voltage LDMOS transistor
    2.
    发明公开
    Protection circuit for controlling the gate voltage of a high voltage LDMOS transistor 失效
    Schutzschaltung zur Steuerung der Gatterspannung eines Hochspannungs-LDMOS晶体管

    公开(公告)号：EP0887931A1

    公开(公告)日：1998-12-30

    申请号：EP97830296.6

    申请日：1997-06-24

    Applicant: STMicroelectronics S.r.l.

    Inventor： Tarantola, Mario ,  Cantone, Giuseppe ,  Genova, Angelo ,  Gariboldi, Roberto

    IPC: H03K17/06

    CPC classification number: H03K17/08122 ,  H03K17/063

    Abstract: A circuit for charging a capacitance (C) by means of an LDMOS integrated transistor (LD) functioning as a source follower stage and controlled, in a manner to emulate a high voltage charging diode of the capacitance via a bootstrap (Cp) capacitor charged by a diode (D1) connected to the supply node (Vs) of the circuit, by an (IO1) inverter driven by a logic control circuit in function of a first Low Gate Drive Signal and of a second logic signal (UVLOb) which is active during a phase where the supply voltage (Vs) is lower than the minimum switch-on voltage of the integrated circuit, comprises further a second inverter (M1, M2), functionally referred to the charging node of said bootstrap (Cp) capacitor and to the voltage of the output node (A) of said inverter (IO1) and having an input coupled to said second logic signal (UVLOb) and an output coupled to the gate node of said LDMOS transistor (LD), for preventing accidental undue switch-on of the LDMOS transistor.

    Abstract translation: 一种用于通过用作源极跟随器级的LDMOS集成晶体管（LD）对电容（C）进行充电的电路，以通过经由自举（Cp）电容器充电的自举（Cp）电容器模拟电容的高电压充电二极管的方式被控制 和由第一低栅极驱动信号的逻辑控制电路驱动的（IO1）反相器和第二逻辑信号（UVLOb）连接的电路的供电节点（Vs）的二极管（D1） 在电源电压（Vs）低于集成电路的最小接通电压的阶段中，还包括在功能上称为所述自举（Cp）电容器的充电节点的第二反相器（M1，M2），并且 所述反相器（IO1）的输出节点（A）的电压和耦合到所述第二逻辑信号（UVLOb）的输入端和耦合到所述LDMOS晶体管（LD）的栅极节点的输出端，用于防止意外不适当的开关 - 在LDMOS晶体管上。

    High efficiency 'high side' circuit
    3.
    发明公开
    High efficiency 'high side' circuit 审中-公开
    电压侧电路以高效率

    公开(公告)号：EP1104106A3

    公开(公告)日：2004-01-14

    申请号：EP00204130.9

    申请日：2000-11-21

    Applicant: STMicroelectronics S.r.l.

    Inventor： Novelli, Aldo ,  Gariboldi, Roberto ,  Genova, Angelo ,  Filippo, Roberto

    IPC: H03K17/06

    CPC classification number: H03K17/04123 ,  H03K17/063

    Abstract: A high side circuit is described which comprises at least one power device (1) having a first non drivable terminal (D) connected to a supply voltage (Vcc), at least one load (2) connected between a second non drivable terminal (S) of the power device (1) and ground, and driving circuitry (10). The driving circuitry (10) comprises suitable dimensioned transistors (M1, M2, M3) which are connected to each other and to a higher voltage (Vboot) than the supply voltage (Vcc) in order to control the turning on and the turning off of the power device (1) and to minimize the potential difference between the second non drivable terminal (S) and a drivable terminal (G) of the power device (1) during the turning off state to avoid the re-turning on of the same power device.

    Control method of the current flow in driver systems for brushless motors, particularly during the switching phase
    4.
    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。

    High efficiency 'high side' circuit
    8.
    发明公开
    High efficiency 'high side' circuit 审中-公开
    Spannungsseitige Schaltung mit hohem Wirkungsgrad

    公开(公告)号：EP1104106A2

    公开(公告)日：2001-05-30

    申请号：EP00204130.9

    申请日：2000-11-21

    Applicant: STMicroelectronics S.r.l.

    Inventor： Novelli, Aldo ,  Gariboldi, Roberto ,  Genova, Angelo ,  Filippo, Roberto

    IPC: H03K17/06

    CPC classification number: H03K17/04123 ,  H03K17/063

    Abstract: A high side circuit is described which comprises at least one power device (1) having a first non drivable terminal (D) connected to a supply voltage (Vcc), at least one load (2) connected between a second non drivable terminal (S) of the power device (1) and ground, and driving circuitry (10). The driving circuitry (10) comprises suitable dimensioned transistors (M1, M2, M3) which are connected to each other and to a higher voltage (Vboot) than the supply voltage (Vcc) in order to control the turning on and the turning off of the power device (1) and to minimize the potential difference between the second non drivable terminal (S) and a drivable terminal (G) of the power device (1) during the turning off state to avoid the re-turning on of the same power device.

    Abstract translation: 描述了一种高侧电路，其包括至少一个功率器件（1），其具有连接到电源电压（Vcc）的第一非驱动端子（D），连接在第二不可驱动端子（S）之间的至少一个负载（2） ）和驱动电路（10）。 驱动电路（10）包括彼此连接并具有比电源电压（Vcc）更高的电压（Vboot）的合适的尺寸尺寸的晶体管（M1，M2，M3），以便控制导通和断开 功率器件（1），并且在关闭状态期间将功率器件（1）的第二不可驱动端子（S）和可驱动端子（G）之间的电位差最小化以避免重新接通 电源设备。

    An integrated device for switching systems with filtered reference quantities
    9.
    发明公开
    An integrated device for switching systems with filtered reference quantities 失效
    Integrierte AnordnungfürSchaltsysteme mit gefiltertenBezugsgrössen

    公开(公告)号：EP0896268A1

    公开(公告)日：1999-02-10

    申请号：EP97830415.2

    申请日：1997-08-07

    Applicant: STMicroelectronics S.r.l.

    Inventor： Genova, Angelo ,  Cantone, Giuseppe ,  Gariboldi, Roberto

    IPC: G05F1/00 ,  G05F1/575 ,  H03K17/16

    CPC classification number: H03K17/162 ,  G05F3/262

    Abstract: An integrated device (105) for a switching system (100) comprises control means (110) for generating at least one switching control signal (Sh), reference means (120) for generating at least one reference quantity (Qref), means (110) for using the reference quantity (Qref), means (130) for storing the reference quantity (Qref), switch means (122) which, in a first operative condition, connect the reference means (120) to the using means (110) and to the storage means (130) in order to apply the reference quantity (Qref) thereto and, in a second operative condition, disconnect the reference means (120) from the using means (110) and connect the storage means (130) to the using means (110) in order to apply the stored reference quantity thereto, and filtering means (135) for keeping the switch means (122) in the second operative condition for a filtering period (Tf) in accordance with the switching of the control signal (Sh).

    Abstract translation: 一种用于切换系统（100）的集成设备（105）包括用于产生至少一个切换控制信号（Sh）的控制装置（110），用于产生至少一个参考数量（Qref）的参考装置（120） ），用于存储参考数量（Qref）的装置（130），用于存储参考数量（Qref）的装置（130），在第一操作状态下将参考装置（120）连接到使用装置（110）的开关装置 并且向存储装置（130）提供参考数量（Qref），并且在第二操作条件下，使用参考装置（120）与使用装置（110）断开连接，并将存储装置（130）连接到 使用装置（110），以便将存储的参考数据应用于其中;以及滤波装置（135），用于根据控制的切换将开关装置（122）保持在第二操作状态中的过滤周期（Tf） 信号（Sh）。

Patent Agency Ranking