MAGNETRON FILTER
    21.
    发明申请
    MAGNETRON FILTER 有权
    MAGNETRON过滤器

    公开(公告)号:US20140306604A1

    公开(公告)日:2014-10-16

    申请号:US14124464

    申请日:2012-05-31

    CPC classification number: H01J23/15 H05B6/66

    Abstract: A low-filter is arranged for attachment to an exterior face of a wall of an electrically conducting screened chamber encasing the magnetron and an associated isolation transformer electrically connected to terminals of the magnetron. Output connections of the filter pass directly through an interface between the electrically conducting screened chamber and the filter to connect electrically, directly or indirectly, with the isolation transformer. There are therefore no electrical leads outside the screened chamber electrically connecting the filter to the isolation transformer.

    Abstract translation: 布置了一个低过滤器,用于连接到一个包围磁控管的导电屏蔽室的壁的外表面,以及一个电连接到磁控管端子的相关隔离变压器。 滤波器的输出连接直接通过导电屏蔽室和滤波器之间的接口直接或间接地与隔离变压器连接。 因此,屏蔽室之外没有电引线将过滤器电连接到隔离变压器。

    DRIVE CIRCUIT AND METHOD FOR A GATED SEMICONDUCTOR SWITCHING DEVICE
    22.
    发明申请
    DRIVE CIRCUIT AND METHOD FOR A GATED SEMICONDUCTOR SWITCHING DEVICE 有权
    用于栅极半导体开关器件的驱动电路和方法

    公开(公告)号:US20140203849A1

    公开(公告)日:2014-07-24

    申请号:US14238697

    申请日:2012-08-10

    CPC classification number: H03K3/012 H03K17/0424 H03K17/166

    Abstract: Drive circuit and method for a gated semiconductor switching device A drive circuit and method for a gated semiconductor switching device (10) comprising providing coupling such as a mutual inductance between a gate drive circuit (21) for the device and a drain to source current supply circuit (22) for the device in order to change a gate voltage provided by the gate drive circuit dependent on a rate of change of a current in the drain to source current supply circuit. The change in gate voltage has a magnitude and phase arranged to increase or decrease a switching speed of the gated semiconductor switching device.

    Abstract translation: 门控半导体开关器件的驱动电路和方法门控半导体开关器件(10)的驱动电路和方法包括在用于器件的栅极驱动电路(21)和漏 - 源电流源之间提供诸如互感的耦合 电路(22),以便根据栅极驱动电路提供的栅极电压,取决于漏极到源极电流电路中的电流的变化率。 栅极电压的变化具有设置成增加或减小门控半导体开关器件的开关速度的幅度和相位。

    Power supply for radio frequency heating apparatus
    23.
    发明授权
    Power supply for radio frequency heating apparatus 有权
    射频加热设备电源

    公开(公告)号:US08536499B2

    公开(公告)日:2013-09-17

    申请号:US12663615

    申请日:2008-05-30

    CPC classification number: H05B6/68 H05B6/666

    Abstract: An RF generator power supply comprises a first switched mode power supply (SMPS) connected in series to a second SMPS by a DC bus. A capacitor is arranged between the outputs of the first SMPS and inputs of the second SMPS to act as a smoothing capacitor for the first SMPS and to supply pulse energy to the second SMPS. The second SMPS has an output connected to an input of a step-up transformer and an output of the step-up transformer is connected to an input of a rectifier connectable to the RF generator. An input of the first SMPS is connectable to a prime power supply to maintain a high power factor with low harmonic content while setting an operating voltage and peak current level for the RF generator. The second SMPS is arranged to feed the step-up transformer and is arranged to operate with a variable duty cycle and/or variable frequency to provide average power control of the RF generator. The second SMPS is rapidly switched off on detection of a power surge through the RF generator.

    Abstract translation: RF发生器电源包括通过DC总线与第二SMPS串联连接的第一开关模式电源(SMPS)。 在第一SMPS的输出和第二SMPS的输入之间布置电容器,以用作第一SMPS的平滑电容器,并向第二SMPS提供脉冲能量。 第二SMPS具有连接到升压变压器的输入的输出端,升压变压器的输出端连接到可连接到RF发生器的整流器的输入端。 第一SMPS的输入可连接到主电源,以保持具有低谐波含量的高功率因数,同时为RF发生器设置工作电压和峰值电流电平。 第二SMPS被布置为馈送升压变压器并且被布置成以可变占空比和/或可变频率操作以提供RF发生器的平均功率控制。 通过RF发生器检测到电源浪涌,第二个SMPS被快速关闭。

    FIRE HOSE COUPLING WITH DIRECTIONAL INDICATOR
    24.
    发明申请
    FIRE HOSE COUPLING WITH DIRECTIONAL INDICATOR 有权
    消防软管与方向指示器的联接

    公开(公告)号:US20120006419A1

    公开(公告)日:2012-01-12

    申请号:US13255640

    申请日:2010-03-24

    Abstract: A fire hose coupling comprises a body having a first end connected to a fire hose and a second end having either male or female threads or, alternatively, a quarter-turn sexless coupler. The fire hose coupling comprises a recessed portion formed in an outer surface of the body. The recessed portion is shaped to define a visuotactile directional indicator such as an arrow. The recessed portion may include a light-reflecting surface to enhance visibility such as a super reflective metal film, a photo luminescent coating, or a phosfluorescent coating. The recessed directional indicator may be formed in female, male or sexless (Storz) couplings. Since the light-reflecting directional indicator is recessed, it will not cause the hose assembly to snag or catch when the hose is dragged through a burning structure, nor will the directional indicator abrade or wear over time. This coupling enables firefighters to readily determine the exit direction when operating in dark and smoky conditions.

    Abstract translation: 防火软管接头包括主体,其具有连接到消防水带的第一端和具有阳螺纹或阴螺纹的第二端,或者替代地,四分之一转的无性耦合器。 灭火软管联接器包括形成在主体的外表面中的凹部。 凹陷部分成形为限定诸如箭头的视觉方向指示器。 凹部可以包括光反射表面,以增强可见度,例如超反射金属膜,光致发光涂层或磷光体涂层。 嵌入的方向指示器可以形成为阴,阳或无性(Storz)联接器。 由于光反射方向指示器凹入,当软管被拖过燃烧结构时,不会导致软管组件卡住或钩住,也不会随着时间推移方向指示器磨损或磨损。 这种耦合使消防员能够在黑暗和烟雾的条件下操作时容易地确定出口方向。

    Sealed and cooled enclosure with voltage isolation
    25.
    发明授权
    Sealed and cooled enclosure with voltage isolation 有权
    密封和冷却的外壳具有隔离电压

    公开(公告)号:US07923630B2

    公开(公告)日:2011-04-12

    申请号:US12076525

    申请日:2008-03-19

    CPC classification number: H01B3/56 H05K5/06

    Abstract: An enclosure (4) for electrical apparatus (6) has a sealable outlet (8) for partially evacuating the enclosure and a sealable inlet (9)for partially filling the enclosure with a liquid (7) having a vapor pressure at operating temperatures of the apparatus suitable to enhance electrical isolation of the electrical apparatus and suitable to provide convective cooling of the electrical apparatus. The vapor preferably provides a voltage hold-off sufficiently high for operating voltages of the electrical apparatus and has a relative permittivity sufficiently low to prevent stray capacitance in the electrical apparatus above a predetermined limit.

    Abstract translation: 用于电气设备(6)的外壳(4)具有用于部分抽空外壳的可密封出口(8)和用于部分地填充外壳的可密封入口(9),所述液体(7)具有在 适合于增强电气设备的电隔离并适于提供电气设备的对流冷却的装置。 蒸气优选地为电气设备的工作电压提供足够高的电压保持,并且具有足够低的相对介电常数以防止电气设备中的杂散电容高于预定极限。

    Switching arrangement
    28.
    发明授权
    Switching arrangement 有权
    切换安排

    公开(公告)号:US06914350B2

    公开(公告)日:2005-07-05

    申请号:US09725175

    申请日:2000-11-29

    CPC classification number: H03K17/691 H03K17/102 Y10T307/826 Y10T307/937

    Abstract: A solid state switching arrangement includes a transmission line which acts as a primary transformer loop and acts with secondary windings carried by switching modules to apply triggering signals to the switches. The arrangement may include greater than sixty modules.

    Abstract translation: 固态开关装置包括用作主变压器回路的传输线,并与由开关模块承载的次​​级绕组一起施加触发信号给开关。 该安排可能包括六十多个模块。

    Pulse transformer having conductive shield around magnetic core material
    29.
    发明授权
    Pulse transformer having conductive shield around magnetic core material 失效
    脉冲变压器在磁芯材料周围具有导电屏蔽

    公开(公告)号:US4496924A

    公开(公告)日:1985-01-29

    申请号:US402344

    申请日:1982-07-27

    CPC classification number: H01F27/362 H01F27/2885 H01F30/16

    Abstract: A pulse transformer is used in a radar transmitter to transform a high current pulse at relatively low voltage into a very high voltage pulse which can be used to directly drive a magnetron oscillator. The potential of the output pulse can be of the order of 30 kV and since the transformer is required to operate at very high peak powers of the order of two megawatts, it must be very carefully designed to avoid excessive electrical losses and voltage breakdown. The core material of the transformer consists of a closely wound reel of magnetic material in the form of an elongate tape, which is mechanically fragile. The magnetic core is loosely mounted within a sealed container so that the primary and secondary windings surround it. A conductive shield is placed around the magnetic material so as to protect it from the very large electric fields generated within the transformer. This prevents the ionization of gases which could lead to the rapid deterioration of the magnetic core material.

    Abstract translation: 在雷达发射机中使用脉冲变压器将相对较低电压的高电流脉冲变换成可用于直接驱动磁控管振荡器的非常高的电压脉冲。 输出脉冲的电位可以达到30kV左右,并且由于变压器要求工作在非常高的2兆瓦级的峰值功率,因此必须非常仔细地设计,以避免过多的电损耗和电压击穿。 变压器的芯材由紧密缠绕的磁性材料卷轴组成,其为细长带的形式,其机械易碎。 磁芯松散地安装在密封的容器中,使得初级和次级绕组围绕它。 在磁性材料周围放置一个导电屏蔽层,以保护它免受变压器内产生的非常大的电场的影响。 这样可以防止气体的离子化,这可能导致磁芯材料的快速劣化。

    Transformer for an inverter system and an inverter system comprising the transformer

    公开(公告)号:US09607756B2

    公开(公告)日:2017-03-28

    申请号:US14131619

    申请日:2012-07-04

    CPC classification number: H01F27/362 H01F27/42 H02M7/44

    Abstract: A transformer includes a primary winding; a secondary winding; a first electrostatic screen located between the primary winding and the secondary winding and most proximate to the primary winding; and a second electrostatic screen located between the primary winding and the secondary winding and most proximate to the secondary winding. The first electrostatic screen is electrically connectable to a power supply electrically connectable to the primary winding and the second electrostatic screen is electrically connectable to a load electrically connectable to the secondary winding. The invention also includes an inverter system including the transformer.

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