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    • 11. 发明授权
    • Density and viscosity sensor
    • 密度和粘度传感器
    • US07874199B2
    • 2011-01-25
    • US12097901
    • 2006-12-27
    • Francois ChaudoreilleAlfred PermuyEric Donzier
    • Francois ChaudoreilleAlfred PermuyEric Donzier
    • G01N9/10G01N11/16
    • G01N9/002G01N11/16
    • A density and viscosity sensor for measuring density and viscosity of a fluid, and method for measuring, are presented herein. The sensor comprises a resonating element, and actuating/detecting element, a connector and a housing. The actuating/detecting element is positioned within a chamber defined by the housing so as to be isolated from the fluid. The resonating element is arranged to be immersed in the fluid, and has a shape defining a first resonance mode and a second resonance mode characterized by different resonance frequencies and different quality factors. The first resonance mode is adapted to move a volume of fluid, and the second resonance mode is adapted to shear a surrounding fluid.
    • 本文给出了用于测量流体密度和粘度的密度和粘度传感器及其测量方法。 传感器包括谐振元件,致动/检测元件,连接器和壳体。 致动/检测元件位于由壳体限定的室内,以便与流体隔离。 谐振元件布置成浸没在流体中,并且具有限定第一共振模式的形状和以不同共振频率和不同质量因子为特征的第二共振模式。 第一谐振模式适于移动一定体积的流体,并且第二共振模式适于剪切周围流体。
    • 12. 发明授权
    • Device for mechanically locking an electronic component with respect to a support
    • 用于相对于支撑件机械地锁定电子部件的装置
    • US06307155B1
    • 2001-10-23
    • US09446853
    • 1999-12-28
    • Alfred Permuy
    • Alfred Permuy
    • H02G308
    • H05K7/12
    • The invention concerns a device for mechanically locking with respect to a support an electronic component soldered on a printed circuit card directly mounted on said support. The invention comprises a main wall designed to rest against a support wall and at least an elastic tab forming a U-shaped back loop relative to said main wall, said main wall and said elastic tab bearing matching means for maintaining said tab in a position wherein it is compressed towards said main wall, said matching means being capable of being disengaged relative to one another by the effect of a tool actuated by an operator, said elastic tab being then released to be urged against the component.
    • 本发明涉及一种用于相对于支撑件机械锁定的装置,焊接在直接安装在所述支撑件上的印刷电路卡上的电子部件。 本发明包括设计成抵靠支撑壁和至少一个相对于所述主壁形成U形背环的弹性片的主壁,所述主壁和所述弹性片用轴承匹配装置用于将所述翼片保持在一个位置, 它被朝向所述主壁压缩,所述匹配装置能够通过由操作者致动的工具的作用而相互分离,然后释放所述弹性突片以推动该部件。
    • 14. 发明授权
    • Friction clutch with low declutch force
    • 低离合力摩擦离合器
    • US06176361B1
    • 2001-01-23
    • US09117145
    • 1999-08-18
    • Jean Luc TraversEric BretonAlfred PermuyJacques Thirion De Briel
    • Jean Luc TraversEric BretonAlfred PermuyJacques Thirion De Briel
    • F16D1358
    • F16D28/00F16D13/583F16D13/585F16D27/108F16D2013/706
    • The friction clutch comprises a cover (8) with a base (80), a pressure plate (3) with a front friction face (30) for co-operating with a clutch friction and, set between the pressure plate (3) and the base (80) of the cover (8), a diaphragm (2) with a peripheral part extended inward by fingers (23) to oppose at will, by means of a nose (11) of a clutch bearing (10), the action of said peripheral part (21), a booster elastic washer (7) acting on the fingers (23) of the diaphragm (2) in the declutching direction resting on the cover (8): the booster washer (7) is arranged between the cover (8) and the leading-edge piece or nose (11) such that it is adapted to operate on the fingers (23) of the diaphragm (2) via said leading-edge piece or nose (11).
    • 摩擦离合器包括具有基座(80)的盖(8),具有前摩擦面(30)的压板(3),用于与离合器摩擦相配合,并设置在压板(3)和 (8)的底座(80),具有通过手指(23)向内延伸以通过离合器轴承(10)的鼻部(11)相对的周向部分的隔膜(2),所述动作 的所述周边部分(21)上的辅助弹性垫圈(7),所述增强弹性垫圈(7)沿着所述隔离膜(2)的指状物(23)在所述盖(8)上作用;所述增压垫圈(7) 盖子(8)和前缘件或鼻子(11),使得其适于通过所述前缘件或鼻子(11)在隔膜(2)的手指(23)上操作。
    • 16. 发明授权
    • Capacitor balancing circuit and control method for an electronic device such as a multilevel power inverter
    • 电容器平衡电路及控制方法等电子设备如多电平逆变器
    • US09312705B2
    • 2016-04-12
    • US13329979
    • 2011-12-19
    • Alfred PermuyLuke Solomon
    • Alfred PermuyLuke Solomon
    • H02J7/00H02J7/06G01R31/36G01R19/00H02M7/483
    • H02J7/0014H02M7/483
    • A method of balancing voltages in a group of capacitors of a power electronic device, such as a multilevel power inverter, includes making a balancing determination regarding whether to (i) inject energy into the selected one of the capacitors from an energy storage element, or (ii) extract energy from the selected one of the capacitors into the energy storage element based on the voltage of a selected one of the capacitors, and either injecting energy into the selected one of the capacitors from the energy storage element, or extracting energy from the selected one of the capacitors into the energy storage element based on the balancing determination. Also, a voltage balancing circuit that implements the method. In one particular implementation, a spatial second derivative algorithm is used. In another particular implementation, a comparison to an average capacitor voltage is used.
    • 一种在诸如多电平电力逆变器的功率电子装置的一组电容器中平衡电压的方法包括:是否(i)从能量存储元件将能量注入所选择的一个电容器中的平衡确定;或 (ii)基于所选择的一个电容器的电压将所选择的一个电容器中的能量提取到能量存储元件中,并且从能量存储元件将能量注入到所选择的一个电容器中,或者从 基于平衡确定将所选择的一个电容器插入能量存储元件中。 另外,实现该方法的电压平衡电路。 在一个特定实现中,使用空间二阶导数算法。 在另一个具体实现中,使用与平均电容器电压的比较。
    • 17. 发明授权
    • Gate drive circuit and associated method
    • 门驱动电路及相关方法
    • US08471604B2
    • 2013-06-25
    • US13450599
    • 2012-04-19
    • Alfred PermuyNicholas D. BenavidesLuke Solomon
    • Alfred PermuyNicholas D. BenavidesLuke Solomon
    • H03K3/00
    • H03K17/56H02M1/08H02M7/49H02M2001/0012H03K17/10H03K17/691
    • A method of driving a number of series connected active power semiconductor groups, wherein each of the active power semiconductor groups includes one or more gate oxide-isolated active power semiconductor devices. The method includes generating a current pulse, providing the current pulse to a primary portion of a transformer unit and in response thereto causing a number of reflected current pulses to be reflected at a secondary portion of the transformer unit, and transferring and latching each of the reflected current pulses to create a respective latched gate drive signal, and providing each respective latched gate drive signal to an associated one of the active power semiconductor groups for driving the one or more gate oxide-isolated active power semiconductor devices of the associated one of the active power semiconductor groups. Also, a gate drive circuit that implements the method.
    • 驱动多个串联连接的有源功率半导体组的方法,其中每个有源功率半导体组包括一个或多个栅极氧化物隔离的有功功率半导体器件。 该方法包括产生电流脉冲,将电流脉冲提供给变压器单元的主要部分,并且响应于此,使得多个反射电流脉冲在变压器单元的次级部分处反射,并且传送和锁存 反射电流脉冲以产生相应的锁存栅极驱动信号,以及将每个相应的锁存栅极驱动信号提供给相关联的一个有源功率半导体组,用于驱动相关联的一个栅极驱动信号的一个或多个栅极氧化物隔离有功功率半导体器件 有功功率半导体组。 另外,实现该方法的栅极驱动电路。
    • 18. 发明申请
    • GATE DRIVE CIRCUIT AND ASSOCIATED METHOD
    • 门控驱动电路及相关方法
    • US20130099831A1
    • 2013-04-25
    • US13450599
    • 2012-04-19
    • ALFRED PERMUYNicholas D. BenavidesLuke Solomon
    • ALFRED PERMUYNicholas D. BenavidesLuke Solomon
    • H03K17/56
    • H03K17/56H02M1/08H02M7/49H02M2001/0012H03K17/10H03K17/691
    • A method of driving a number of series connected active power semiconductor groups, wherein each of the active power semiconductor groups includes one or more gate oxide-isolated active power semiconductor devices. The method includes generating a current pulse, providing the current pulse to a primary portion of a transformer unit and in response thereto causing a number of reflected current pulses to be reflected at a secondary portion of the transformer unit, and transferring and latching each of the reflected current pulses to create a respective latched gate drive signal, and providing each respective latched gate drive signal to an associated one of the active power semiconductor groups for driving the one or more gate oxide-isolated active power semiconductor devices of the associated one of the active power semiconductor groups. Also, a gate drive circuit that implements the method.
    • 驱动多个串联连接的有源功率半导体组的方法,其中每个有源功率半导体组包括一个或多个栅极氧化物隔离的有功功率半导体器件。 该方法包括产生电流脉冲,将电流脉冲提供给变压器单元的主要部分,并且响应于此,使得多个反射电流脉冲在变压器单元的次级部分处反射,并且传送和锁存 反射电流脉冲以产生相应的锁存栅极驱动信号,以及将每个相应的锁存栅极驱动信号提供给相关联的一个有源功率半导体组,用于驱动相关联的一个栅极驱动信号的一个或多个栅极氧化物隔离有功功率半导体器件 有功功率半导体组。 另外,实现该方法的栅极驱动电路。
    • 19. 发明申请
    • CORONA IGNITION WITH SELF-TUNING POWER AMPLIFIER
    • CORONA点火与自调谐功率放大器
    • US20100282198A1
    • 2010-11-11
    • US12777105
    • 2010-05-10
    • Keith HamptonAlfred Permuy
    • Keith HamptonAlfred Permuy
    • F02B19/00H05B41/36H03F99/00
    • H01T19/00F02P3/01F02P9/002F02P23/04
    • A power amplifier circuit that has an inductor and capacitor connected to one end of the output winding of an RF transformer. The other end of the output winding is connected to a resistor that in turn is connected to ground. The transformer has two primary windings. Both primary windings have one end connected to a variable DC voltage supply. The other end of each primary winding is attached to a switch, such as a MOSFET. All three windings are wound around a core. Current flowing from the DC voltage supply to the switches causes a magnetic flux in the core. A voltage is generated on the secondary winding resistor. This voltage is fed back to the switches, controlling on and off timing. In this way the need to measure and record natural frequency is eliminated.
    • 功率放大器电路,其具有连接到RF变压器的输出绕组的一端的电感器和电容器。 输出绕组的另一端连接到电阻器,该电阻器又连接到地。 变压器有两个初级绕组。 两个初级绕组的一端连接到可变直流电压源。 每个初级绕组的另一端连接到诸如MOSFET的开关。 所有三个绕组缠绕在一个芯上。 从直流电源流向开关的电流导致磁芯中的磁通量。 在次级绕组电阻上产生电压。 该电压被反馈到开关,控制开和关定时。 以这种方式消除了测量和记录固有频率的需要。
    • 20. 发明申请
    • Density and Viscosity Sensor
    • 密度和粘度传感器
    • US20080257036A1
    • 2008-10-23
    • US12097901
    • 2006-12-27
    • Francois ChaudoreilleAlfred PermuyEric Donzier
    • Francois ChaudoreilleAlfred PermuyEric Donzier
    • G01N9/34
    • G01N9/002G01N11/16
    • A density and viscosity sensor 1 for measuring density and viscosity of fluid F, the sensor 1 comprising: a resonating element 3, 3A, 3B, 3C, 3D, 3E, 3F, 3G arranged to be immersed in the fluid F, an actuating/detecting element 4, 4A, 4B coupled to the resonating element, a connector 7 for coupling to the actuating/detecting element 4, 4A, 4B, a housing 2 defining a chamber 8A isolated from the fluid F, the housing 2 comprising an area of reduced thickness defining a membrane 9 separating the chamber 8A from the fluid F, the membrane 9 having a thickness enabling transfer of mechanical vibration between the actuating/detecting element 4, 4A, 4B and the resonating element 3, 3A, 3B, 3C, 3D, 3E, 3F, 3G, the actuating/detecting element 4, 4A, 4B is positioned within the chamber so as to be isolated from the fluid F and mechanically coupled to the membrane 9, the resonating element 3, 3A, 3B, 3C, 3D, 3E, 3F, 3G arranged to be immersed in the fluid F is mechanically coupled to the membrane 9, wherein the resonating element 3, 3A, 3B, 3C, 3D, 3E, 3F, 3G has a shape defining a first resonance mode and a second resonance mode characterized by different resonant frequencies F1, F2 and different quality factors Q1, Q2, the first resonance mode moving a volume of fluid, the second mode shearing a surrounding fluid.
    • 用于测量流体F的密度和粘度的密度和粘度传感器1,传感器1包括:谐振元件3,3A,3B,3C,3D,3E,3F,3G,被布置成浸入 流体F,耦合到谐振元件的致动/检测元件4,4A,4B,用于联接到致动/检测元件4,4A,4B的连接器7,限定腔室8A的壳体2隔离 来自流体F的壳体2包括减小厚度的区域,其限定了将腔室8A与流体F分隔开的膜9,膜9具有能够在致动/检测元件4,4A之间传递机械振动的厚度, 4 B和谐振元件3,3A,3B,3C,3D,3E,3F,3G,致动/检测元件4,4A,4B位于室内,以便 从流体F隔离并机械耦合到膜9,布置成浸没在流体F中的谐振元件3,3A,3B,3C,3D,3E,3F,3G是机械 耦合到膜9,其中谐振元件3,3A,3B,3C,3D,3E,3F,3G具有限定第一共振模式的形状和以不同谐振为特征的第二谐振模式 频率F 1,F 2和不同的质量因子Q 1,Q 2,第一共振模式移动a 流体体积,第二模式剪切周围液体。