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22 条记录 (耗时 0.017 秒)

    Spike filtering circuit for logic signals
    1.
    发明授权
    Spike filtering circuit for logic signals 失效
    用于逻辑信号的SPIKE滤波电路

    公开(公告)号：US5168181A

    公开(公告)日：1992-12-01

    申请号：US705006

    申请日：1991-05-23

    申请人： Antonella Baiocchi ,  Angelo Alzati ,  Aldo Novelli

    发明人： Antonella Baiocchi ,  Angelo Alzati ,  Aldo Novelli

    IPC分类号： H03K5/1254 ,  H03K5/1252

    CPC分类号： H03K5/1252

    摘要： A spike filtering circuit for a logic signal comprises a signal transfer circuit formed by a first transfer gate followed by a pair of inverters, functionally connected in series between the input terminal and the output terminal of the circuit and a second transfer gate connected between the output terminal and the input node of the first of said two inverters. The two transfer gates are driven in phase opposition to each other by means of a pair of control signals in phase opposition to each other which are generated by a control circuit functioning in a feedback mode. Basically the control circuit is formed by an exclusive-OR gate having two inputs connected to the output terminal of the circuit directly and through a delay network, respectively. Through an output node of the exclusive-OR gate is produced a first control signal from which the pair of control signals in phase opposition to each other are derived by means of inverting stages. The delay network introduces a delay after a transition of the signal on the output terminal of the circuit has occurred during which said first transfer gate is momentarily disabled and said second transfer gate is enabled in order to maintain on the output terminal the state reached with the first transition for a period of time sufficiently long to allow the decay of spikes which may be been generated by said transition of the logic signal. By employing a NAND gate and an inverter connected in cascade to the output of said exclusive-OR gate, the filtering circuit may be initialled by applying an enabling signal to a second input of said NAND gate.

    Bipolar-MOS comparator circuit with saturation prevention
    2.
    再颁专利
    Bipolar-MOS comparator circuit with saturation prevention 失效
    具有饱和预防的双极MOS比较电路

    公开(公告)号：USRE35434E

    公开(公告)日：1997-01-28

    申请号：US176859

    申请日：1993-12-30

    申请人： Alberto Gola ,  Angelo Alzati ,  Aldo Novelli

    发明人： Alberto Gola ,  Angelo Alzati ,  Aldo Novelli

    IPC分类号： H03K5/08 ,  H03F3/45 ,  H03K5/24

    CPC分类号： H03F3/4508 ,  H03F3/45076 ,  H03F3/45179 ,  H03F3/45286 ,  H03F3/45291 ,  H03K5/2445 ,  H03F2203/45028 ,  H03F2203/45144 ,  H03F2203/45188 ,  H03F2203/45304 ,  H03F2203/45612

    摘要： An electronic comparator circuit having a high speed during switch phase and combining the advantages of bipolar technology with those of CMOS technology. The circuit consists of a differential stage input circuit having a differential pair of bipolar transistors forming its outputs. The output stage contains a pair of MOS transistors having gate electrodes in common. The pair of MOS transistors is connected on one side to the outputs of the input portion and on the other side to a positive supply pole via a current mirror circuit. The output contains another pair of MOS transistors with gate electrodes in common connected between the out puts of the input portion and ground. The drain electrode of the first pair of MOS transistors forms the output for the comparator.

    摘要翻译： 一种电子比较器电路，在开关阶段具有高速度，并结合了双极技术与CMOS技术的优点。 该电路由差分级输入电路组成，该差分级输入电路具有构成其输出的双极晶体管的差分对。 输出级包含一对具有共同的栅电极的MOS晶体管。 一对MOS晶体管通过电流镜电路在一侧连接到输入部分的输出，另一侧连接到正电源极。 输出包含另一对MOS晶体管，其栅极电极共同连接在输入部分和地之间。 第一对MOS晶体管的漏极形成比较器的输出。

    Device and method for controlling a power switch
    3.
    发明授权
    Device and method for controlling a power switch 失效
    用于控制电源开关的装置和方法

    公开(公告)号：US5770967A

    公开(公告)日：1998-06-23

    申请号：US594707

    申请日：1996-01-31

    申请人： Angelo Alzati ,  Aldo Novelli

    发明人： Angelo Alzati ,  Aldo Novelli

    IPC分类号： H02M3/07 ,  H03K17/06 ,  H03K17/687 ,  H03K17/16

    CPC分类号： H03K17/6871 ,  H03K17/063

    摘要： The invention relates to a charge-pump control circuit for a power transistor including a driver circuit connected to a first supply voltage through a diode and to a second voltage through a switch and a first load. The driver circuit is connected to the power transistor, and the power transistor is linked to a pump capacitor. The power transistor is connected between a further supply voltage and a second load. The control circuit of the invention further includes a control logic circuit connected between the first supply voltage and the second voltage. The control logic circuit is connected to the driver circuit and to the switch, and the switch is connected between the power transistor and the first load. The switch is also connected to the driver circuit, and to a circuit for checking the charged state of the pump capacitor which is connected between the switch and the control logic circuit.

    摘要翻译： 本发明涉及一种用于功率晶体管的电荷泵控制电路，其包括通过二极管连接到第一电源电压的驱动器电路和通过开关和第一负载的第二电压。 驱动电路连接到功率晶体管，功率晶体管连接到泵电容器。 功率晶体管连接在另一电源电压和第二负载之间。 本发明的控制电路还包括连接在第一电源电压和第二电压之间的控制逻辑电路。 控制逻辑电路连接到驱动电路和开关，开关连接在功率晶体管和第一负载之间。 开关也连接到驱动器电路，以及用于检查连接在开关和控制逻辑电路之间的泵电容器的充电状态的电路。

    Protection device for a converter and related method
    6.
    发明授权
    Protection device for a converter and related method 有权
    转换器保护装置及相关方法

    公开(公告)号：US07561450B2

    公开(公告)日：2009-07-14

    申请号：US11459567

    申请日：2006-07-24

    申请人： Claudio Adragna ,  Aldo Novelli

    发明人： Claudio Adragna ,  Aldo Novelli

    IPC分类号： H02H7/122

    CPC分类号： H02M3/3376 ,  H02M1/32 ,  H02M1/38

    摘要： A protection device for a converter includes at least one power switch that operates for a first time period from the time the overload or short-circuit in the converter has been detected. The protection device includes circuitry to control the power switch to minimize the power deliverable by the converter for a second time period from the end of the first operating time period, as well as circuitry to shut down the converter after the second time period.

    摘要翻译： 用于转换器的保护装置包括至少一个功率开关，其从已经检测到转换器中的过载或短路的时间起第一时间段操作。 保护装置包括控制电源开关的电路，以使从第一操作时间段结束开始的第二时间段内由转换器输送的功率最小化，以及在第二时间段之后关闭转换器的电路。

    Protection device for electric motor driving devices and corresponding driving device
    7.
    发明申请
    Protection device for electric motor driving devices and corresponding driving device 有权
    电动机驱动装置及相应驱动装置的保护装置

    公开(公告)号：US20060244405A1

    公开(公告)日：2006-11-02

    申请号：US11413654

    申请日：2006-04-27

    申请人： Aldo Novelli ,  Vincenzo Marano ,  Luca Giussani

    发明人： Aldo Novelli ,  Vincenzo Marano ,  Luca Giussani

    IPC分类号： H02P7/00

    CPC分类号： H02P6/24 ,  H02P29/032

    摘要： A protection device protects a driving device of an electric motor with at least three phases and at least three windings and the driving device comprises a power stage suitable for driving directly said at least three windings. The driving device is suitable for actuating a motor brake operating phase and comprises detectors suitable for detecting the currents that run in the windings of the motor. The protection device comprises selectors suitable for selecting the currents having a single direction between said detected currents and a deactuator suitable for deactuating the power stage during said motor brake operating phase when the sum of the currents having a single direction is greater than a reference current.

    摘要翻译： 保护装置用至少三相和至少三个绕组保护电动机的驱动装置，并且驱动装置包括适于直接驱动所述至少三个绕组的功率级。 该驱动装置适于致动马达制动操作阶段，并且包括适于检测在马达的绕组中运行的电流的检测器。 所述保护装置包括选择器，其适于在具有单个方向的电流之和大于参考电流时，在所述电动机制动操作阶段期间选​​择具有在所述检测电流之间的单一方向的电流和适于停止功率级的停用器。

    PROTECTION DEVICE FOR A CONVERTER AND RELATED METHOD
    8.
    发明申请
    PROTECTION DEVICE FOR A CONVERTER AND RELATED METHOD 有权
    用于转换器的保护装置及相关方法

    公开(公告)号：US20080019153A1

    公开(公告)日：2008-01-24

    申请号：US11459567

    申请日：2006-07-24

    申请人： Claudio Adragna ,  Aldo Novelli

    发明人： Claudio Adragna ,  Aldo Novelli

    IPC分类号： H02M3/335

    CPC分类号： H02M3/3376 ,  H02M1/32 ,  H02M1/38

    摘要： A protection device for a converter includes at least one power switch that operates for a first time period from the time the overload or short-circuit in the converter has been detected. The protection device includes circuitry to control the power switch to minimize the power deliverable by the converter for a second time period from the end of the first operating time period, as well as circuitry to shut down the converter after the second time period.

    摘要翻译： 用于转换器的保护装置包括至少一个功率开关，其从已经检测到转换器中的过载或短路的时间起第一时间段操作。 保护装置包括控制电源开关的电路，以使从第一操作时间段结束开始的第二时间段内由转换器输送的功率最小化，以及在第二时间段之后关闭转换器的电路。

    High voltage driver circuit with diode
    10.
    发明授权
    High voltage driver circuit with diode 失效
    带二极管的高压驱动电路

    公开(公告)号：US5912495A

    公开(公告)日：1999-06-15

    申请号：US690060

    申请日：1996-07-31

    申请人： Riccardo Depetro ,  Aldo Novelli

    发明人： Riccardo Depetro ,  Aldo Novelli

    IPC分类号： H01L29/78 ,  H01L21/8234 ,  H01L27/02 ,  H01L27/06 ,  H01L29/739 ,  H01L23/62

    CPC分类号： H01L29/7824 ,  H01L27/0255 ,  H01L27/0629 ,  H01L29/7393 ,  H01L29/7801 ,  H01L29/7817

    摘要： The invention relates to a structure for and the method of manufacturing a driver circuit for an inductive load monolithically integrated on a semiconductor substrate doped with a first type of doping agent and on which is grown an epitaxial well having a second type of doping agent. An insulated well doped with the same type of doping agent as the substrate, which houses at least one power transistor of the driver circuit, is provided within the epitaxial well. The epitaxial well also houses a first and a second active area which house the cathode terminal and anode terminal of a protection diode, respectively.

    摘要翻译： 本发明涉及用于制造用于整体地集成在掺杂有第一类掺杂剂的半导体衬底上的感性负载的驱动电路的结构和方法，并且在其上生长具有第二类掺杂剂的外延阱。 在外延阱内设置绝缘阱，其掺杂有与基板相同类型的掺杂剂，其容纳至少一个驱动电路的功率晶体管。 外延阱还容纳分别容纳保护二极管的阴极端子和阳极端子的第一和第二有源区域。