Power converter employing a variable switching frequency and a magnetic device with a non-uniform gap
    1.
    发明授权
    Power converter employing a variable switching frequency and a magnetic device with a non-uniform gap 有权
    采用可变开关频率的功率转换器和具有不均匀间隙的磁性装置

    公开(公告)号:US08514593B2

    公开(公告)日:2013-08-20

    申请号:US12486520

    申请日:2009-06-17

    IPC分类号: H02M3/335

    CPC分类号: H02M3/28 H01F3/14

    摘要: A power converter including a power switch, a controller for controlling a switching frequency thereof, and a magnetic device with a non-uniform gap. In one embodiment, the power converter includes a power switch and a magnetic device coupled to the power switch and having a non-uniform gap. The power converter also includes a controller having a detector configured to sense a condition representing an output power of the power converter. A control circuit of the controller is configured to control a switching frequency of the power switch as a function of the condition and control a duty cycle of the power switch to regulate an output characteristic of the power converter.

    摘要翻译: 一种功率转换器,包括电源开关,用于控制其开关频率的控制器和具有不均匀间隙的磁性装置。 在一个实施例中,功率转换器包括电源开关和耦合到电源开关并具有非均匀间隙的磁性装置。 功率转换器还包括具有检测器的控制器,其被配置为感测表示功率转换器的输出功率的状态。 控制器的控制电路被配置为根据条件控制电源开关的开关频率,并且控制电源开关的占空比以调节功率转换器的输出特性。

    Power Converter Employing a Variable Switching Frequency and a Magnetic Device with a Non-Uniform Gap
    2.
    发明申请
    Power Converter Employing a Variable Switching Frequency and a Magnetic Device with a Non-Uniform Gap 有权
    使用可变开关频率的电力转换器和具有非均匀间隙的磁性装置

    公开(公告)号:US20100321958A1

    公开(公告)日:2010-12-23

    申请号:US12486520

    申请日:2009-06-17

    IPC分类号: H02M3/335

    CPC分类号: H02M3/28 H01F3/14

    摘要: A power converter including a power switch, a controller for controlling a switching frequency thereof, and a magnetic device with a non-uniform gap. In one embodiment, the power converter includes a power switch and a magnetic device coupled to the power switch and having a non-uniform gap. The power converter also includes a controller having a detector configured to sense a condition representing an output power of the power converter. A control circuit of the controller is configured to control a switching frequency of the power switch as a function of the condition and control a duty cycle of the power switch to regulate an output characteristic of the power converter.

    摘要翻译: 一种功率转换器,包括电源开关,用于控制其开关频率的控制器和具有不均匀间隙的磁性装置。 在一个实施例中,功率转换器包括电源开关和耦合到电源开关并具有非均匀间隙的磁性装置。 功率转换器还包括具有检测器的控制器,其被配置为感测表示功率转换器的输出功率的状态。 控制器的控制电路被配置为根据条件控制电源开关的开关频率,并且控制电源开关的占空比以调节功率转换器的输出特性。

    Method for assembling a magnetic component
    3.
    发明授权
    Method for assembling a magnetic component 有权
    磁性部件的组装方法

    公开(公告)号:US08458893B2

    公开(公告)日:2013-06-11

    申请号:US13157186

    申请日:2011-06-09

    IPC分类号: H01F7/06

    摘要: Generally, methods and processes for assembling magnetic components are presented herein. More specifically, conductors are wound around a substantially hollow bobbin. Portions of the conductors may be temporarily positioned outside the bobbin through slots in the flanges of the bobbin during the assembly process. Insulating layers may be wrapped around the conductors. The center legs of a pair of magnetic core halves may be inserted into the bobbin. The base of the magnetic core halves may have a passage to allow a conductor to pass therethrough at a height less than the height of the base.

    摘要翻译: 通常,本文给出了用于组装磁性部件的方法和方法。 更具体地说,导体缠绕在基本中空的筒管上。 在组装过程中,导体的一些部分可以临时定位在线轴的外侧,通过线轴的凸缘中的槽。 绝缘层可以缠绕在导体周围。 一对磁芯半部的中心腿可插入筒管中。 磁芯半部的基部可以具有允许导体在小于基座的高度的高度处通过的通道。

    Planar core structure
    4.
    发明授权
    Planar core structure 有权
    平面核心结构

    公开(公告)号:US07969272B2

    公开(公告)日:2011-06-28

    申请号:US11935774

    申请日:2007-11-06

    摘要: Generally, a low-profile planar core structure for use in magnetic components and related processes are presented herein. More specifically, the planar core structure provides a relatively large winding area that reduces heat dissipation, reduces leakage inductance, and allows for a low-profile design. The planar core structure has a center core that is elongated along a horizontal axis. Furthermore, conductors may enter and exit the planar core structure without increasing its height.

    摘要翻译: 通常,本文介绍了用于磁性部件和相关工艺的低轮廓平面芯体结构。 更具体地说,平面芯体结构提供了相对较大的绕组面积,其减少了散热,减少了漏电感,并允许了薄型设计。 平面芯结构具有沿水平轴线细长的中心芯。 此外,导体可以进入和离开平面芯结构而不增加其高度。

    Transformer construction
    5.
    发明授权
    Transformer construction 有权
    变压器施工

    公开(公告)号:US08410889B2

    公开(公告)日:2013-04-02

    申请号:US13297253

    申请日:2011-11-15

    IPC分类号: H01F17/04 H01F27/30 H01F27/28

    摘要: The invention relates to a transformer construction comprising a plurality of transformer cores configured to share magnetic flux paths and, as a result, at least one of the cores comprises a post and an associated sidewall having an effective cross-sectional area which is less than that of the post. Such a construction may be employed in a power conditioning unit, for example, for a photovoltaic module, which is configured to operate the cores out of phase from each other. Also described is a transformer winding comprising a longitudinal spine having a first turn emanating from a first portion of the spine in a first transverse direction and a second turn emanating from a second portion of the spine in a second transverse direction, wherein the second transverse direction is opposite to the first transverse direction.

    摘要翻译: 本发明涉及一种变压器结构,其包括被配置为共享磁通路径的多个变压器芯,并且因此,至少一个芯包括柱和相关联的侧壁,该侧壁的有效横截面积小于 的帖子。 这种结构可以用在功率调节单元中,例如用于光伏模块,其被配置为相互操作核心。 还描述了一种变压器绕组,其包括纵向脊柱,其具有在第一横向方向上从脊柱的第一部分发出的第一匝和在第二横向方向上从脊柱的第二部分发出的第二匝,其中第二横向 与第一横向相反。

    TRANSFORMER CONSTRUCTION
    6.
    发明申请
    TRANSFORMER CONSTRUCTION 有权
    变压器结构

    公开(公告)号:US20120081204A1

    公开(公告)日:2012-04-05

    申请号:US13297253

    申请日:2011-11-15

    IPC分类号: H01F27/24 H01F27/28

    摘要: The invention relates to a transformer construction comprising a plurality of transformer cores configured to share magnetic flux paths and, as a result, at least one of the cores comprises a post and an associated sidewall having an effective cross-sectional area which is less than that of the post. Such a construction may be employed in a power conditioning unit, for example, for a photovoltaic module, which is configured to operate the cores out of phase from each other. Also described is a transformer winding comprising a longitudinal spine having a first turn emanating from a first portion of the spine in a first transverse direction and a second turn emanating from a second portion of the spine in a second transverse direction, wherein the second transverse direction is opposite to the first transverse direction.

    摘要翻译: 本发明涉及一种变压器结构,其包括被配置为共享磁通路径的多个变压器芯,并且因此,至少一个芯包括柱和相关联的侧壁,该侧壁的有效横截面积小于 的帖子。 这种结构可以用在功率调节单元中,例如用于光伏模块,其被配置为相互操作核心。 还描述了一种变压器绕组,其包括纵向脊柱,其具有在第一横向方向上从脊柱的第一部分发出的第一匝和在第二横向方向从脊柱的第二部分发出的第二匝,其中第二横向 与第一横向相反。

    High power manufacturing friendly transformer
    7.
    发明授权
    High power manufacturing friendly transformer 有权
    大功率制造友好型变压器

    公开(公告)号:US07987581B2

    公开(公告)日:2011-08-02

    申请号:US12474149

    申请日:2009-05-28

    申请人: Arturo Silva

    发明人: Arturo Silva

    IPC分类号: H01F7/06

    摘要: Transformers having bobbins that are constructed in such a way that pre-formed secondary windings (e.g., resembling springs) may be slipped onto the bobbins after a primary winding has been wound onto the bobbin. Additionally, the secondary windings may also serve as a self-leading device. That is, they may not require terminations on pins of the bobbin, which may reduce cost and complexity. The secondary windings may have circular or non-circular (e.g., flat) cross-sections. The transformer winding techniques provided herein may reduce the number of components, and may promote smaller input filters and/or less filtering stages at a fraction of the cost of conventional transformers.

    摘要翻译: 具有以使得预成形的次级绕组(例如类似弹簧)的方式构造的线轴的变压器可能在初级绕组已经卷绕到线轴上之后滑动到线轴上。 另外,次级绕组也可以用作自引导装置。 也就是说,它们可能不需要在线轴的引脚上的端接,这可能降低成本和复杂性。 次级绕组可以具有圆形或非圆形(例如,平坦的)横截面。 本文提供的变压器绕组技术可以减少部件的数量,并且可以以常规变压器的成本的一小部分促进较小的输入滤波器和/或较少的滤波级。

    POWER CONVERTER MAGNETIC DEVICES
    8.
    发明申请
    POWER CONVERTER MAGNETIC DEVICES 有权
    电源转换器磁性器件

    公开(公告)号:US20090295524A1

    公开(公告)日:2009-12-03

    申请号:US12474016

    申请日:2009-05-28

    申请人: Arturo Silva

    发明人: Arturo Silva

    IPC分类号: H01F27/28 H01F27/24

    摘要: Magnetic structures for use in components utilized in switched mode power supplies can be combined to provide space and cost savings. Portions of magnetic cores can be utilized to form more than one component and/or separate magnetic cores can be combined into a single core. Further, a layer of material that has a higher flux density saturation point than the core and that is lower in permeability than the core (but higher than that of air) can be placed adjacent to the air gap in a core to decrease the magnetic flux passing through the vicinity surrounding the core so as to reduce EMI. A differential-mode choke and a separate common-mode choke can be combined onto a single core. An extra leg for a PFC choke core can be added to an isolation transformer core to form a single combined core. A pair of E-E core structures can be combined into a single core structure such as could be used to combine a pair of separate PFC chokes into an integrated pair of PFC chokes.

    摘要翻译: 用于开关模式电源的部件中使用的磁性结构可以结合在一起,以节省空间和成本。 磁芯的一些部分可用于形成多于一个部件和/或分离的磁芯可以组合成单个磁芯。 此外,具有比芯更高的通量密度饱和点的层与磁芯的磁导率低(但高于空气)的材料层可以靠近磁芯中的气隙放置以降低磁通量 通过芯周围的附近,以减少EMI。 差分模式扼流圈和单独的共模扼流圈可以组合到单个磁芯上。 用于PFC扼流圈的额外支脚可以添加到隔离变压器铁芯中以形成单个组合芯。 一对E-E核心结构可以组合成单个核心结构,例如可以将一对单独的PFC扼流圈组合成一对PFC扼流圈。

    AC/DC planar transformer
    9.
    发明授权
    AC/DC planar transformer 有权
    AC / DC平面变压器

    公开(公告)号:US08928449B2

    公开(公告)日:2015-01-06

    申请号:US12473990

    申请日:2009-05-28

    摘要: An inductive element including a magnetic core with a section received in a central opening defined in each of the layers in a multilayer circuit board. A primary winding, an auxiliary winding, and a secondary winding are each realized in conductive coils located on a plurality of layers in the circuit board. The secondary winding is separated from the other windings by a relatively-thick dielectric layer. Other dielectric layers separate each of the layers with the coils. EMI shields are provided on other layers. The coils are located in a central region of each layer so as to provide an adequate safety margin from the side edges of the inductive element.

    摘要翻译: 一种电感元件,包括具有在多层电路板中每个层中限定的中心开口的部分的磁芯。 初级绕组,辅助绕组和次级绕组各自实现在位于电路板中的多个层上的导电线圈中。 次级绕组通过相对厚的介电层与其它绕组分离。 其他电介质层将每个层与线圈隔开。 其他层提供EMI屏蔽。 线圈位于每层的中心区域,以便从电感元件的侧边缘提供足够的安全裕度。

    Inductive Device
    10.
    发明申请
    Inductive Device 审中-公开
    感应装置

    公开(公告)号:US20120081200A1

    公开(公告)日:2012-04-05

    申请号:US13310689

    申请日:2011-12-02

    申请人: Arturo Silva

    发明人: Arturo Silva

    摘要: We describe an inductive device for use in current shaping applications. The inductive device includes a core body comprising a first gap and a second gap, and at least one transition region between the first and second gaps. The shape of each gap in the inductive device can control a slope between two inductance values as a function of load current. The inductive device is capable of providing low total harmonic distortion (THD) AC output waveforms to achieve high efficiency.

    摘要翻译: 我们描述了一种用于当前成形应用的电感器件。 感应装置包括一个包括第一间隙和第二间隙的芯体,以及在第一和第二间隙之间的至少一个过渡区域。 电感器件中每个间隙的形状可以控制两个电感值之间的斜率作为负载电流的函数。 电感器件能够提供低总谐波失真(THD)交流输出波形,以实现高效率。