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31. 发明申请

US20050146902A1 Method and apparatus for substantially reducing electrical earth displacement current flow generated by wound components 失效
标题翻译：用于大大减少由伤口部件产生的电位移电流的方法和装置
公开(公告)号：US20050146902A1
公开(公告)日：2005-07-07
申请号：US11072938
申请日：2005-03-03
申请人： Arthur Odell , Chan Park
发明人： Arthur Odell , Chan Park
IPC分类号： H01F17/04 , H01F27/38 , H01F38/00 , H01F38/42 , H02M3/335
CPC分类号： H02M3/00 , H01F17/043 , H01F27/306 , H01F27/34 , H01F27/341 , H01F27/38 , H01F27/385 , H01F29/02 , H01F30/06 , H01F30/10 , H01F38/42 , H01F2038/026 , H02M1/44 , H02M3/335
摘要： An energy transfer element having an energy transfer element input winding and an energy transfer element output winding. In one aspect, the energy transfer element input winding is capacitively coupled to the energy transfer element output winding. The energy transfer element is capacitively coupled to electrical earth. One or more additional windings are introduced as part of the energy transfer element. The one or more additional windings substantially reduce capacitive displacement current between the energy transfer element input winding and energy transfer element output winding by balancing the relative electrostatic fields generated between these windings and/or between the energy transfer element and electrical earth by canceling the electrostatic fields generated by all windings within the energy transfer element relative to electrical earth through the selection of the physical position and number of turns in the additional windings.
摘要翻译：能量传递元件具有能量转移元件输入绕组和能量传递元件输出绕组。在一个方面，能量传递元件输入绕组电容耦合到能量传递元件输出绕组。能量传递元件电容耦合到电气接地。作为能量传递元件的一部分引入一个或多个附加绕组。一个或多个附加绕组通过平衡在这些绕组之间产生的相对静电场和/或能量转移元件与电气地球之间的静电场的平衡，基本上减小了能量传递元件输入绕组和能量传递元件输出绕组之间的电容位移电流通过选择附加绕组中的物理位置和匝数，相对于电气接地，能量传递元件内的所有绕组产生。

32. 发明授权

US06856230B2 Harmonic filtering circuit with special transformer 失效
标题翻译：具有专用变压器的谐波滤波电路
公开(公告)号：US06856230B2
公开(公告)日：2005-02-15
申请号：US10446002
申请日：2003-05-27
申请人： Weimin Lu
发明人： Weimin Lu
IPC分类号： H01F27/38 , H03H1/00 , H01F27/24
CPC分类号： H02J3/01 , H01F27/385 , H03H1/0007 , H03H2001/0057 , Y02E40/40
摘要： A filter uses a special autotransformer that has a ferromagnetic core with a plurality of legs and flux return bars. A first coil is located on one leg, and a second coil is located on the same leg, but spaced from the first coil. The first coil and at least part of the second coil are connected in series to receive distorted alternating current and at least that part of the second coil is connected to an output terminal. Between the coils and extending at least part of the way from the first leg to an adjacent leg is a magnetic shunt assembly to divert part of the flux generated in the first coil by the alternating current so that that part does not link with the second coil. An air gap is located to link with the second coil to create an inductor in that coil by flux in the second coil, and a capacitor is connected across the second coil to tune it to the fundamental frequency of the alternating current and substantially reduce harmonics in that current.
摘要翻译：滤波器使用具有铁磁芯的特殊自耦变压器，其具有多个支路和通量返回条。第一线圈位于一条腿上，第二线圈位于相同的腿上，但与第一线圈间隔开。第一线圈和第二线圈的至少一部分串联连接以接收失真的交流电流，并且至少第二线圈的那部分连接到输出端子。在线圈之间并且从第一腿至相邻腿部延伸的至少一部分路径是磁分路组件，以将由第一线圈中产生的一部分磁通转向交流电流，使得该部分不与第二线圈相连。气隙被定位成与第二线圈连接以在该线圈中通过第二线圈中的磁通产生电感器，并且电容器连接在第二线圈两端以将其调谐到交流电的基频，并且基本上减少那当前。

33. 发明授权

US5446643A Harmonic blocking converter system 失效
标题翻译：谐波阻塞转换器系统
公开(公告)号：US5446643A
公开(公告)日：1995-08-29
申请号：US193442
申请日：1994-02-08
申请人： William McMurray
发明人： William McMurray
IPC分类号： H01F27/38 , H02M7/48 , H02M7/49 , H02M1/12
CPC分类号： H02M7/49 , H01F27/385
摘要： A harmonic blocking converter system for converting power between an AC source and a DC source includes a harmonic blocking transformer and a converter which generates undesirable harmonic currents including fifth and seventh harmonic components. The harmonic blocking transformer includes a polyphase main transformer and a harmonic blocker coupled with wye and delta secondary windings of the main transformer, so as to substantially block passage of the fifth and seventh harmonic currents to the AC source. A waveform enhancer may couple the harmonic blocking transformer with the converter. The converter may be constructed for 2-level operation, or, with the addition of auxiliary diodes, for 3-level operation. Such a harmonic blocking transformer and a method of blocking undesirable harmonic currents are also provided.
摘要翻译：用于在AC源和DC源之间转换功率的谐波阻塞转换器系统包括谐波阻塞变压器和转换器，其产生包括第五和第七谐波分量的不期望的谐波电流。谐波阻塞变压器包括多相主变压器和与主变压器的叶片和三角形次级绕组耦合的谐波阻塞器，以便基本上阻止第五和第七谐波电流通过AC电源。波形增强器可以将谐波阻塞变压器与转换器耦合。转换器可以构造为2级操作，或者通过添加辅助二极管，用于3级操作。还提供了这种谐波阻塞变压器和阻塞不期望的谐波电流的方法。

34. 发明授权

US5434455A Harmonic cancellation system 失效
标题翻译：谐波消除系统
公开(公告)号：US5434455A
公开(公告)日：1995-07-18
申请号：US286412
申请日：1994-08-05
申请人： John B. Kammeter
发明人： John B. Kammeter
IPC分类号： H01F27/38 , H01F30/14 , H02J3/01
CPC分类号： H01F27/385 , H01F30/14 , H02J3/01 , Y02E40/40
摘要： A harmonic current filtering transformer includes a three-phase input winding and at least two wye-connected three-phase output windings. Windings for each of the phases includes an in-phase coil connected between a common neutral and vector coils for each of the other two phases, the output windings thereby being phase shifted relative to each other by an amount which causes harmonic currents generated by a non-linear load to magnetically cancel in the transformer core. The harmonic current filtering transformer may be used as part of a harmonic cancelling power system which includes multiple linear and nonlinear loads, and protective devices, switches, filters and other components on both the input and output sides of the transformer as in a conventional power system since the harmonic cancelling transformer does not require additional secondary windings or other electrical components previously thought necessary to achieve harmonic cancellation.
摘要翻译：谐波电流滤波变压器包括三相输入绕组和至少两个三相输出绕组。每个相的绕组包括连接在用于其他两相中的每一相的公共中性线圈和矢量线圈之间的同相线圈，因此输出绕组相对于彼此相移一定量，该量使得由非线性产生的谐波电流在变压器铁芯中磁性抵消的线性负载。谐波电流滤波变压器可以用作包括多个线性和非线性负载的谐波消除电力系统的一部分，以及在传统电力系统中的变压器的输入和输出侧上的保护装置，开关，滤波器和其它部件因为谐波消除变压器不需要额外的次级绕组或以前认为必要的其他电气元件来实现谐波消除。

35. 发明授权

US5343080A Harmonic cancellation system 失效
标题翻译：谐波消除系统
公开(公告)号：US5343080A
公开(公告)日：1994-08-30
申请号：US196813
申请日：1994-02-14
申请人： John B. Kammeter
发明人： John B. Kammeter
IPC分类号： H01F27/38 , H01F30/14 , H02J3/01
CPC分类号： H02J3/01 , H01F27/385 , H01F30/14 , Y02E40/40
摘要： A harmonic current filtering transformer includes a three-phase input winding and at least two wye-connected three-phase output windings. The output windings are phase shifted relative to each other by an amount which causes harmonic currents generated by a non-linear load to magnetically cancel in the transformer core.
摘要翻译：谐波电流滤波变压器包括三相输入绕组和至少两个三相输出绕组。输出绕组相对于彼此相移一定量，该量使得由非线性负载产生的谐波电流在变压器磁芯中磁性消除。

36. 发明授权

US4112403A Saturated reactor arrangements 失效
标题翻译：饱和反应堆布置
公开(公告)号：US4112403A
公开(公告)日：1978-09-05
申请号：US743790
申请日：1976-11-22
申请人： Erich Siegfried Friedlander
发明人： Erich Siegfried Friedlander
IPC分类号： H01F27/38 , H01F30/12 , H01F33/00 , G05F3/06
CPC分类号： H01F27/385 , H01F30/12
摘要： A saturated reactor adapted for direct connection to an EHV line and thus constituting a combined reactor and transformer. A problem arises in that earthing of the primary winding star point would normally short circuit the 3rd harmonic. The invention overcomes this by series connection of primary coils coupled to three limbs whose fluxes are spaced at 40.degree.. 3rd harmonic voltages therefore cancel in the series primary windings. The series primary windings may be obtained as separate coils on individual limbs or as one coil (per phase) embracing three limbs. Elimination of the 3rd harmonic enables the ninth harmonic to be short circuited in a mesh winding.
摘要翻译：饱和电抗器，适用于直接连接到EHV线路，从而组成电抗器和变压器。出现的问题是，初级绕组星点的接地通常会使三次谐波短路。本发明克服了这种情况，其通过串联连接耦合到通量间隔40度的三个肢体的初级线圈。三次谐波电压因此在串联初级绕组中消除。串联初级绕组可以作为单独的线圈获得，或者作为包围三个肢体的一个线圈（每相）获得。消除三次谐波使第九谐波在网状绕组中短路。

37. 发明授权

US3611224A Controllable reactive current generator 失效
标题翻译：可控电流发电机
公开(公告)号：US3611224A
公开(公告)日：1971-10-05
申请号：US75523968
申请日：1968-08-26
申请人： LICENTIA GMBH
发明人： BECKER HANS LUDWIG
IPC分类号： H01F27/38 , H01F29/14 , H02J3/04 , H02J3/18 , H02M5/12 , H01F33/00
CPC分类号： H02M5/12 , H01F27/385 , H01F29/14 , H02J3/04 , H02J3/1835 , Y02E40/30
摘要： Apparatus, containing no moving parts, for generating controllable sinusoidal reactive currents in an n-phase mains. The apparatus includes a primary winding, connected to each phase of the mains, having 2n windings which are associated, in groups of two, with each respective phase of mains. The apparatus also includes either the second one alone or both of the following two auxiliary windings: (1) a delta-connected alternating current winding having 2n windings which are connected serially in groups of two, each group being associated with a respective phase of the mains, and (2) a direct current winding also having 2n windings which are connected serially, in groups of two with each group being associated with a respective phase of the mains. The two windings in each group of the direct current winding are wound in opposition. Each of the windings of the primary winding excites a separate magnetic circuit which contains respective the one of the windings of the auxiliary winding or windings.

38. 发明授权

US2474525A Control for vapor discharge tubes and electric arcs 失效
标题翻译：控制蒸汽放电管和电弧
公开(公告)号：US2474525A
公开(公告)日：1949-06-28
申请号：US52925344
申请日：1944-04-03
申请人： MODERN CONTROLS INC
发明人： HAUG EUGENE H
IPC分类号： G05F3/06 , H01F27/38
CPC分类号： G05F3/06 , H01F27/385 , Y10S315/05

39. 发明授权

US11974385B2 Waveform detection of states and faults in plasma inverters 有权
公开(公告)号：US11974385B2
公开(公告)日：2024-04-30
申请号：US18132906
申请日：2023-04-10
申请人： Atmospheric Plasma Solutions, Inc.
发明人： Terrence E. Rogers
IPC分类号： H05H1/36 , H01F27/38 , H01F38/10 , H03M1/12
CPC分类号： H05H1/36 , H01F27/385 , H01F38/10 , H03M1/1245 , H05H2240/10
摘要： A system for determining an operational state of an atmospheric pressure plasma. The system has a transformer for coupling power into the atmospheric pressure plasma, a current sampling circuit configured to sample at least one current pulse flowing through a primary winding of the transformer, and a programmed microprocessor configured to determine, from a waveform of the current pulse, the operational state of the atmospheric pressure plasma. The operational state is one of: a no plasma state, a plasma origination state indicative of an ignited arc expanding into a plasma by gas flow thereinto, and a plasma maintenance state indicative of the plasma being expanded.

40. 发明授权

US09966905B2 Weakly coupled based harmonic rejection filter for feedback linearization power amplifier 有权
公开(公告)号：US09966905B2
公开(公告)日：2018-05-08
申请号：US14215800
申请日：2014-03-17
申请人： RF Micro Devices, Inc.
发明人： Dirk Robert Walter Leipold , George Maxim , Baker Scott , Danny W. Chang
IPC分类号： H01F27/28 , H03F1/32 , H03F3/195 , H03F3/21 , H03F3/19 , H03F3/213 , H01F27/38 , H03H7/09 , H03H7/01 , H03F1/34 , H03F1/22
CPC分类号： H03F1/3241 , H01F27/28 , H01F27/385 , H03F1/22 , H03F1/32 , H03F1/34 , H03F3/19 , H03F3/195 , H03F3/211 , H03F3/213 , H03H7/09 , H03H7/1775
摘要： Radio frequency (RF) filters configured to filter undesired signal components (e.g., noise and harmonics) from RF signals are disclosed. In one embodiment, an RF filter includes a first inductor coil having a first winding and a second inductor coil having a second winding and a third winding. The second winding of the second inductor coil is configured to have a first mutual magnetic coupling with the first winding, while the third winding of the second inductor coil is configured to have a second mutual magnetic coupling with the first winding. The second winding is connected to the third winding such that the first mutual magnetic coupling and the second mutual magnetic coupling are in opposition. In this manner, the first inductor coil and the second inductor coil may be provided in a compact arrangement while providing weak mutual magnetic coupling between the first inductor coil and the second inductor coil.

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