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146 条记录 (耗时 0.022 秒)

    Symmetrical power converter
    31.
    发明授权
    Symmetrical power converter 有权

    公开(公告)号：US09712062B2

    公开(公告)日：2017-07-18

    申请号：US14706847

    申请日：2015-05-07

    申请人： Edward Herbert

    发明人： Edward Herbert

    IPC分类号： H02M3/335 ,  H01F38/00 ,  H01F38/02

    CPC分类号： H02M3/335 ,  H01F38/00 ,  H01F2038/006 ,  H01F2038/026 ,  H02M3/33546

    摘要： A switched-capacitor circuit has two capacitors and two MOSFETs that cross-couple the capacitors, connecting the anode of one to the cathode of the other, and vice-versa. When either MOSFET is on, the capacitors are in series; the order alternates as the MOSFETs alternate. A reversing cyclical voltage suitable as a primary drive for a transformer is generated. If the MOSFETs alternate with no dead-time, a square-wave excitation is generated. With off-time, a pwm excitation is generate. Charge is maintained on the switched-capacitors using a symmetrical common-mode inductor. A bifilar winding is center-tap as its input, and the ends of the bifilar winding are connected to the capacitors. The capacitors are effectively in parallel. Because the charging current flows and returns through each leg of the inductor equally, it cannot magnetize the inductor core or cause any flux change. Because any voltages induced in the windings are common-mode, flux change in the core does not affect the charging current. The ac voltage generated when the capacitors switch is across the full inductor. Not only does the inductance attenuate any noise, the center-tap is between equal and opposite negative and positive voltages, which cancel. There is very little noise at the input. The circuit is reciprocal, so it can be used to rectify a transformer output. Two can be used as a bi-directional transformer isolated power converter. Several modules using 1 to 1 transformers can be stacked for a power converter having a higher ratio of input to output voltage.

    Six-Phase Supplied Transformer Rectifier Unit
    33.
    发明申请
    Six-Phase Supplied Transformer Rectifier Unit 有权
    六相变压器整流器单元

    公开(公告)号：US20150256099A1

    公开(公告)日：2015-09-10

    申请号：US14202888

    申请日：2014-03-10

    申请人： The Boeing Company

    发明人： Jian Huang ,  Christopher Mark Severns ,  Alan Thomas Bernier

    IPC分类号： H02M7/06

    CPC分类号： H02M7/06 ,  H01F30/12 ,  H01F38/00 ,  H01F2038/006 ,  H02M2001/123 ,  Y10T307/297

    摘要： A method and apparatus for forming a direct current power supply. An apparatus comprises a transformer and a rectifier. The transformer is figured to output a plurality of phase-shifted alternating currents in response to receiving a plurality of alternating currents. The plurality of alternating currents and the plurality of phase-shifted alternating currents form a plurality of input alternating currents that are offset relative to each other by one-twelfth of a cycle in phase. The rectifier is configured to form a direct current power supply having a common mode voltage reduced to zero within selected tolerances in response to receiving the plurality of input alternating currents.

    摘要翻译： 一种用于形成直流电源的方法和装置。 一种装置包括变压器和整流器。 响应于接收多个交流电流，变压器被设计成输出多个相移的交流电流。 多个交流电流和多个相移交流电流形成多个输入交流电流，其相对于彼此相位相差十二分之一偏移。 整流器被配置为响应于接收多个输入交流电而形成在选定的公差内具有降低到零的共模电压的直流电源。

    High frequency transformer for high voltage applications
    35.
    发明授权
    High frequency transformer for high voltage applications 有权
    高频变压器用于高压应用

    公开(公告)号：US08324999B2

    公开(公告)日：2012-12-04

    申请号：US12593136

    申请日：2008-03-19

    申请人： Robert Richardson

    发明人： Robert Richardson

    IPC分类号： H01F27/28 ,  H01F27/24

    CPC分类号： H01F38/00 ,  H01F27/40 ,  H01F30/06 ,  H01F2038/006 ,  H02M7/003 ,  H02M7/19 ,  H02M2001/0077

    摘要： A transformer comprises a primary winding having a first plurality of magnetic circuits each with a second plurality of turns and electrically connected in parallel and a secondary winding comprising a third plurality of magnetic circuits each with a fourth plurality of turns and electrically connected in series. The primary winding is electromagnetically coupled to the secondary winding by a single turn electrically conductive loop.

    摘要翻译： 变压器包括具有第一多个磁路的初级绕组，每个磁路具有第二多个匝并且电并联，以及次级绕组，其包括具有第四多个匝并且串联电连接的第三多个磁路。 初级绕组通过单匝导电回路电磁耦合到次级绕组。

    Coupled Inductor With Improved Leakage Inductance Control
    36.
    发明申请
    Coupled Inductor With Improved Leakage Inductance Control 有权
    具有改进的泄漏电感控制的耦合电感

    公开(公告)号：US20120300500A1

    公开(公告)日：2012-11-29

    申请号：US13567732

    申请日：2012-08-06

    申请人： Alexandr Ikriannikov

    发明人： Alexandr Ikriannikov

    IPC分类号： H01F27/28 ,  H01F17/04 ,  H02M3/335

    CPC分类号： H01F3/10 ,  H01F3/14 ,  H01F27/2847 ,  H01F30/06 ,  H01F2038/006 ,  H02M3/158 ,  H02M3/1584

    摘要： An M-winding coupled inductor includes a first end magnetic element, a second end magnetic element, M connecting magnetic elements, and M windings. M is an integer greater than one. Each connecting magnetic element is disposed between and connects the first and second end magnetic elements. Each winding is wound at least partially around a respective one of the M connecting magnetic elements. The coupled inductor further includes at least one top magnetic element adjacent to and extending at least partially over at least two of the M connecting magnetic elements to provide a magnetic flux path between the first and second end magnetic elements. The inductor may be included in an M-phase power supply, and the power supply may at least partially power a computer processor.

    摘要翻译： M形绕组耦合电感器包括第一端磁性元件，第二端磁性元件，M连接磁性元件和M绕组。 M是大于1的整数。 每个连接的磁性元件设置在第一和第二端部的磁性元件之间并连接。 每个绕组至少部分地围绕M个连接磁性元件中的相应一个缠绕。 所述耦合电感器还包括至少一个顶部磁性元件，所述至少一个顶部磁性元件邻近并延伸至少两个所述M个连接磁性元件中的至少两个，以在所述第一和第二端部磁性元件之间提供磁通量。 电感器可以包括在M相电源中，并且电源可以至少部分地为计算机处理器供电。

    Extended E matrix integrated magnetics (MIM) core
    37.
    发明授权
    Extended E matrix integrated magnetics (MIM) core 有权
    扩展E矩阵集成磁性（MIM）核心

    公开(公告)号：US08134443B2

    公开(公告)日：2012-03-13

    申请号：US12637470

    申请日：2009-12-14

    申请人： Sriram Chandrasekaran ,  Vivek Mehrotra

    发明人： Sriram Chandrasekaran ,  Vivek Mehrotra

    IPC分类号： H01F27/24

    CPC分类号： H01F27/24 ,  H01F3/08 ,  H01F17/04 ,  H01F27/255 ,  H01F30/06 ,  H01F2038/006 ,  H02M7/043 ,  Y10T29/4902

    摘要： A matrix integrated magnetics (MIM) “Extended E” core in which a plurality of outer legs are disposed on a base and separated along a first outer edge to define windows therebetween. A center leg is disposed on the top region of the base and separated from the outer legs to define a center window. The center leg is suitably positioned along a second outer edge opposite the first or between outer legs positioned along opposing outer edges. A plate is disposed on the outer legs opposite the base.

    摘要翻译： 矩阵集成磁体（MIM）“扩展E”磁芯，其中多个外部支脚设置在基座上并沿着第一外边缘分离以在其间限定窗口。 中心腿设置在基部的顶部区域上并与外腿分离以限定中心窗口。 中心腿沿着沿着相对的外边缘定位的第一外侧或第二外腿的第二外边缘适当地定位。 在与底座相对的外腿上设置板。

    Transformer with high voltage isolation
    38.
    发明授权
    Transformer with high voltage isolation 有权
    变压器具有高电压隔离

    公开(公告)号：US07839254B2

    公开(公告)日：2010-11-23

    申请号：US12328687

    申请日：2008-12-04

    申请人： Mark Thomas Dinsmore ,  David J. Caruso

    发明人： Mark Thomas Dinsmore ,  David J. Caruso

    IPC分类号： H01F27/24 ,  H01F21/02 ,  H01F27/28 ,  H01F17/04 ,  H01F29/14 ,  G05F1/32

    CPC分类号： H01F19/08 ,  H01F2017/067 ,  H01F2019/085 ,  H01F2038/006

    摘要： A high-voltage isolation transformer utilizing balun cores for transferring an alternating current signal from a first circuit to an output circuit, and a high voltage generator, such as a Cockcroft-Walton multiplier to apply a high direct current voltage bias with a high degree of voltage isolation between the first circuit and the output circuit. Multiple balun core transformers can be used in order to reduce the voltage rise between each individual transformer.

    摘要翻译： 一种利用平衡 - 不平衡转换器的高压隔离变压器，用于将交流信号从第一电路传输到输出电路;以及高压发生器，例如Cockcroft-Walton乘法器，以施加高直流电压偏置 第一电路和输出电路之间的电压隔离。 可以使用多个平衡不平衡变压器铁芯变压器，以减少每个变压器之间的电压上升。

    Coupled-inductor multi-phase buck converters
    39.
    发明授权
    Coupled-inductor multi-phase buck converters 失效
    耦合电感多相降压转换器

    公开(公告)号：US07791321B2

    公开(公告)日：2010-09-07

    申请号：US11678356

    申请日：2007-02-23

    申请人： Ming Xu ,  Fred C. Lee ,  Yucheng Ying

    发明人： Ming Xu ,  Fred C. Lee ,  Yucheng Ying

    IPC分类号： G05F1/59

    CPC分类号： H02M3/1584 ,  H01F17/045 ,  H01F30/06 ,  H01F2038/006

    摘要： In a multi-phase power converter, efficiency is increased and ripple reduced while maintaining transient response and dynamic performance improved by electrically coupling secondary windings of transformers or provided for inductors of respective phases such that current to a load is induced in each phase by current in another phase. Magnetic coupling can also be provided between phases using a multi-aperture core of a configuration which minimizes primary winding length and copper losses. Efficiency at light load is enhanced by controlling current in the series connection of secondary windings in either binary or analog fashion.

    摘要翻译： 在多相功率转换器中，通过电耦合变压器的次级绕组或提供给各相的电感器来保持瞬态响应和动态性能，同时保持瞬态响应和动态性能，从而提高效率并降低纹波，从而使电流在每相中通过电流在 另一个阶段。 也可以使用最小化初级绕组长度和铜损耗的构造的多孔径芯在相之间提供磁耦合。 通过以二进制或模拟方式控制次级绕组的串联连接电流来增强轻负载时的效率。

    TRANSFORMER WITH HIGH VOLTAGE ISOLATION
    40.
    发明申请
    TRANSFORMER WITH HIGH VOLTAGE ISOLATION 有权
    带高压隔离变压器

    公开(公告)号：US20100141234A1

    公开(公告)日：2010-06-10

    申请号：US12328687

    申请日：2008-12-04

    申请人： Mark Thomas Dinsmore ,  David J. Caruso

    发明人： Mark Thomas Dinsmore ,  David J. Caruso

    IPC分类号： H01F30/00

    CPC分类号： H01F19/08 ,  H01F2017/067 ,  H01F2019/085 ,  H01F2038/006

    摘要： A high-voltage isolation transformer utilizing balun cores for transferring an alternating current signal from a first circuit to an output circuit, and a high voltage generator, such as a Cockcroft-Walton multiplier to apply a high direct current voltage bias with a high degree of voltage isolation between the first circuit and the output circuit. Multiple balun core transformers can be used in order to reduce the voltage rise between each individual transformer.

    摘要翻译： 一种利用平衡 - 不平衡转换器的高压隔离变压器，用于将交流信号从第一电路传输到输出电路;以及高压发生器，例如Cockcroft-Walton乘法器，以施加高直流电压偏置 第一电路和输出电路之间的电压隔离。 可以使用多个平衡不平衡变压器铁芯变压器，以减少每个变压器之间的电压上升。