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1. 发明授权

US09629206B1 Reducing output ripple current and protecting inverter switches during non-zero voltage switching for isolated buck converters 有权
公开(公告)号：US09629206B1
公开(公告)日：2017-04-18
申请号：US13483541
申请日：2012-05-30
申请人： Stephen D. Mays, II , John J Dernovsek , Philip Walker , Donald Folker
发明人： Stephen D. Mays, II , John J Dernovsek , Philip Walker , Donald Folker
IPC分类号： H05B33/08
CPC分类号： H05B33/0803 , H05B33/0815 , Y02B20/341
摘要： An isolated buck converter protects inverter switches during non-zero voltage switching and reduces output ripple current by maintaining operation of an output inductor of the isolated buck converter in a continuous current mode. Continuous current mode operation is maintained by various combinations of: shifting the frequency of operation of the inverter switches of the isolated buck converter as a function of output current of the isolated buck converter; employing pulse density modulation to decrease the off time of the isolated buck converter which will decrease the magnitude of the current ripple; and use a step gap core (i.e., a swinging choke) for the output inductor that saturates to a lower value of inductance for high load current and a higher value of inductance at low load current.

2. 发明授权

US09183974B1 Bobbin apparatus for reducing gap losses in magnetic components 有权
标题翻译：用于减小磁性部件间隙损耗的绕线装置
公开(公告)号：US09183974B1
公开(公告)日：2015-11-10
申请号：US13953413
申请日：2013-07-29
申请人： Donald Folker , Mike LeBlanc , Brandon Dyer
发明人： Donald Folker , Mike LeBlanc , Brandon Dyer
IPC分类号： H01F17/06 , H01F27/30 , H01F27/24 , H01F5/02
CPC分类号： H01F5/02 , H01F3/14 , H01F27/306
摘要： A bobbin apparatus and associated magnetic component is configured to reduce gap losses associated with a core air gap in a bobbin-wound magnetic component such as an inductor or transformer. The bobbin includes a step structure protruding from the winding surface between bobbin ends. The step is operable to provide spacing between the conductive windings disposed on the bobbin and the core air gap inside the bobbin axial passage. The spacing reduces stray flux interactions with the conductive winding, thereby reducing gap losses and preventing undesirable heating of the winding and core. Additional winding configurations and methods for use with the bobbin apparatus are also provided.
摘要翻译：线轴装置和相关联的磁性部件被配置为减小与诸如电感器或变压器的绕线管磁性部件中的芯气隙相关联的间隙损耗。线轴包括从线轴端之间的卷绕表面突出的台阶结构。该步骤可操作以提供布置在线轴上的导电绕组与线轴轴向通道内的芯空气间隙之间的间隔。该间距减小了与导电绕组的杂散磁通相互作用，从而减少了间隙损耗并防止了绕组和磁芯的不期望的加热。还提供了用于筒管装置的附加卷绕结构和方法。

3. 发明授权

US08116089B1 Method and apparatus for securing a magnetic component to a printed circuit board for soldering 有权
标题翻译：用于将磁性部件固定到用于焊接的印刷电路板的方法和装置
公开(公告)号：US08116089B1
公开(公告)日：2012-02-14
申请号：US12605186
申请日：2009-10-23
申请人： Donald Folker , Mike LeBlanc
发明人： Donald Folker , Mike LeBlanc
IPC分类号： H05K7/00
CPC分类号： H05K7/12
摘要： A magnetic device surface mounting assembly includes a specially designed printed circuit board and magnetic device. The circuit board has first and second sets of channels, the first channels having a first end of a first size, a second end of a second size, and first and second sides at least one of which taper inward between the two ends to define an opening smaller than either size. The magnetic device includes a plurality of pins extending transversely with respect to the circuit board, and a plurality of legs extending parallel with the pins and sized to pass transversely through the first end of the first set of channels and to slide laterally through and resiliently engage the opening, but to prevent transverse movement with respect to the second end of the first set of channels.
摘要翻译：磁性装置表面安装组件包括专门设计的印刷电路板和磁性装置。电路板具有第一和第二组通道，第一通道具有第一尺寸的第一端和第二尺寸的第二端，第一和第二侧至少有一个在两端之间向内锥形以限定一个开口小于任一尺寸。磁性装置包括相对于电路板横向延伸的多个销，以及与销平行延伸的多个支柱，其尺寸被设计成横向穿过第一组通道的第一端并横向滑动并弹性地接合开口，而是防止相对于第一组通道的第二端的横向移动。

4. 发明授权

US08212643B1 Bobbin for an inductive electronic component 有权
标题翻译：用于感应电子元件的线轴
公开(公告)号：US08212643B1
公开(公告)日：2012-07-03
申请号：US12428120
申请日：2009-04-22
申请人： Donald Folker , Mike LeBlanc
发明人： Donald Folker , Mike LeBlanc
IPC分类号： H01F27/30 , H01F27/28
CPC分类号： H01F27/2823 , H01F5/02 , H01F27/306
摘要： A bobbin is designed to reduce the voltage stress between the winding layers of the inner winding of an inductive electronic component. A partition transversely extends from the winding surface of the bobbin to divide the winding surface into separated winding surface sections. A partition defines a passage for winding the coil from one winding surface section to the other winding surface section. Passage openings are positioned on each winding surface section relative the winding surface so that a portion of the partition is always between the passage opening and the oppositely disposed winding surface section.
摘要翻译：线轴被设计成减小感应电子部件的内部绕组的绕组层之间的电压应力。分隔件从绕线管的绕组表面横向延伸，以将绕组表面分成分离的绕组表面部分。分隔件限定用于将线圈从一个卷绕表面部分卷绕到另一个卷绕表面部分的通道。通道开口相对于绕组表面定位在每个绕线表面部分上，使得隔板的一部分总是位于通道开口和相对设置的绕组表面部分之间。

5. 发明授权

US07990243B1 Gull wing surface mount magnetic structure 有权
标题翻译：鸥翼表面安装磁结构
公开(公告)号：US07990243B1
公开(公告)日：2011-08-02
申请号：US12544624
申请日：2009-08-20
申请人： Donald Folker , Mark Bauer , J. C. Kelley , Mike LeBlanc , Christopher Radzinski
发明人： Donald Folker , Mark Bauer , J. C. Kelley , Mike LeBlanc , Christopher Radzinski
IPC分类号： H01F5/00 , H01F27/29
CPC分类号： H01F27/325 , H01F27/027
摘要： A magnetic device is provided for placement on the top surface of a printed circuit board with surface mount connection on the bottom surface. The circuit board includes first and second sets of slots bisecting each other. The device includes a bobbin with a plurality of support members each having a face shaped to engage the top surface of the printed circuit board and a plurality of pins attached to the support members. The pins have a first portion shaped to pass through the first set of slots, and a second portion shaped to pass through the second set of slots. The second portion of the pins is shaped to engage the bottom surface of the circuit board, locking the magnetic device in place against the top surface of the circuit board and providing a soldering area for surface mounting on the bottom surface.
摘要翻译：提供磁性装置用于放置在印刷电路板的顶表面上，其表面安装连接在底表面上。电路板包括彼此平分的第一和第二组槽。该装置包括具有多个支撑构件的线轴，每个支撑构件具有成形为接合印刷电路板的顶表面的表面和附接到支撑构件的多个销。所述销具有成形为穿过所述第一组槽的第一部分和被成形为穿过所述第二组槽的第二部分。销的第二部分成形为接合电路板的底表面，将磁性装置锁定在电路板的顶表面上的适当位置，并提供用于表面安装在底表面上的焊接区域。

6. 发明授权

US09136054B1 Reduced leakage inductance transformer and winding methods 有权
标题翻译：减少漏电感变压器和绕组方法
公开(公告)号：US09136054B1
公开(公告)日：2015-09-15
申请号：US12951990
申请日：2010-11-22
申请人： Wei Xiong , Donald Folker , Christopher Radzinski
发明人： Wei Xiong , Donald Folker , Christopher Radzinski
IPC分类号： H01F21/02 , H01F27/28 , H01F27/30 , H01F29/02
CPC分类号： H01F29/02 , H01F27/28 , H01F30/06
摘要： A transformer apparatus provides a primary winding and a secondary winding. The primary winding is divided into multiple primary winding layers. Each primary winding layer includes a number of primary layer turns. The secondary winding includes several secondary winding layers. In some embodiments, the transformer includes alternating primary and secondary winding layers wound around a bobbin structure. At least one secondary winding layer is positioned adjacent a primary winding layer. In some embodiments, the number of primary layer turns in each primary winding layer is equal to the total number of primary winding turns divided by the number of primary winding layers. A method of winding a transformer is also provided.
摘要翻译：变压器装置提供初级绕组和次级绕组。初级绕组分为多个初级绕组层。每个初级绕组层包括多个主层匝数。次级绕组包括几个次级绕组层。在一些实施例中，变压器包括缠绕在线轴结构上的交替的初级和次级绕组层。至少一个次级绕组层位于初级绕组层附近。在一些实施例中，每个初级绕组层中的主层匝数等于初级匝数的总数除以初级绕组层的数量。还提供了一种卷绕变压器的方法。

7. 发明授权

US08406007B1 Magnetic circuit board connector component 有权
标题翻译：磁性电路板连接器组件
公开(公告)号：US08406007B1
公开(公告)日：2013-03-26
申请号：US12634040
申请日：2009-12-09
申请人： Donald Folker , Mike LeBlanc , Mark Bauer
发明人： Donald Folker , Mike LeBlanc , Mark Bauer
IPC分类号： H05K7/00
CPC分类号： H01F27/325 , H01F27/06 , H01F27/306 , H01F2005/046 , H01F2027/065
摘要： A magnetic component includes a bobbin structure adapted for attachment to a circuit board. The magnetic component may include a magnetically permeable core and a conductive winding. The bobbin structure may include a gap for inserting the edge of a circuit board. Potential applications of the magnetic component include mechanically and electrically interconnecting two or more circuit boards in a substantially side-by-side configuration while providing increased heat dissipation from the magnetic component, improving power density of the electronic device, reducing electronic device profile, allowing magnetic isolation between high-voltage and low-voltage circuits and allowing single-sided and double-sided circuit boards to be used in a single circuit. Also, a circuit board assembly may have two or more circuit boards electrically and mechanically connected by at least one magnetic component.
摘要翻译：磁性部件包括适于附接到电路板的线轴结构。磁性部件可以包括导磁芯和导电绕组。线轴结构可以包括用于插入电路板的边缘的间隙。磁性部件的潜在应用包括以大致并排的结构机械地和电气地互连两个或多个电路板，同时提供从磁性部件增加的散热，提高电子器件的功率密度，减少电子器件的轮廓，允许磁性隔离高压和低压电路，并允许在单个电路中使用单面和双面电路板。此外，电路板组件可以具有通过至少一个磁性部件电连接和机械连接的两个或多个电路板。

8. 发明授权

US08242870B1 Magnetic component with a notched magnetic core structure 有权
标题翻译：具有缺口磁芯结构的磁性部件
公开(公告)号：US08242870B1
公开(公告)日：2012-08-14
申请号：US12582567
申请日：2009-10-20
申请人： Donald Folker
发明人： Donald Folker
IPC分类号： H01F27/30 , H01F27/02 , H01F27/29 , H01F27/28
CPC分类号： H01F3/10 , H01F27/255 , H01F27/306
摘要： A magnetic component having a magnetic core structure includes a core body with a notched region for reducing non-essential core material. The notched region has the cross-sectional shape of a trapezoid and includes two notch walls separated by a middle wall. The notch walls are each oriented at an obtuse angle relative to the middle notch wall. The core structure reduces the cost of manufacture and the size of the magnetic component by eliminating non-essential core material from regions of the core that have little or no impact on the magnetic performance of the component. The desired magnetic flux path in the component remains substantially unaffected by the removal of the non-essential core material. The body of the core may also include one or more angled shoulders positioned at the corners of the core body to further eliminate non-essential core material.
摘要翻译：具有磁芯结构的磁性部件包括具有用于减少非必需芯材的缺口区域的芯体。切口区域具有梯形的横截面形状，并且包括由中间壁分隔开的两个切口壁。切口壁各自相对于中间切口壁以钝角定向。核心结构通过从对芯部的磁性能几乎没有或没有影响的芯的区域中消除非必需的芯材来降低制造成本和磁性部件的尺寸。组件中所需的磁通路径基本上不受去除非必需芯材料的影响。芯的主体还可以包括位于芯体的角部的一个或多个成角度的肩部，以进一步消除非必需的芯材料。

9. 发明授权

US09721716B1 Magnetic component having a core structure with curved openings 有权
公开(公告)号：US09721716B1
公开(公告)日：2017-08-01
申请号：US13036303
申请日：2011-02-28
申请人： Donald Folker
发明人： Donald Folker
IPC分类号： H01F27/24 , H01F27/28
CPC分类号： H01F27/24 , H01F3/08 , H01F3/10 , H01F27/28 , H01F27/306
摘要： A magnetic component includes a first core half having a core body with first and second core legs protruding from the core body and a middle core leg protruding from the core body between the first and second core legs. A first U-shaped channel is defined between the first core leg and the middle core leg, and a second U-shaped channel is defined between the second core leg and the middle core leg. A first rounded outer core surface is disposed on the core body oriented substantially parallel to the first U-shaped channel, and a second rounded outer core surface is disposed on the core body oriented substantially parallel to the second U-shaped channel. In some embodiments, a second core half having a similar shape is positioned oppositely adjacent the first core, and a bobbin structure is positioned on the middle core legs such that the first and second U-shaped channels form transverse clearance openings in the magnetic component. Air can be passed transversely through the first and second U-shaped channels to extract heat from the magnetic component.

10. 发明授权

US09490058B1 Magnetic component with core grooves for improved heat transfer 有权
标题翻译：具有芯槽的磁性部件，用于改善传热
公开(公告)号：US09490058B1
公开(公告)日：2016-11-08
申请号：US13007420
申请日：2011-01-14
申请人： Ted Kluska , Donald Folker , Deborah Pinkerton
发明人： Ted Kluska , Donald Folker , Deborah Pinkerton
IPC分类号： H01F27/08 , H01F27/02 , H01F27/29 , H01F27/24 , H01F27/22 , H01F27/32
CPC分类号： H01F27/22 , H01F27/022 , H01F27/08 , H01F27/322
摘要： A magnetic component for an electronic circuit includes a core having one or more core surface grooves defined on a side wall, an end wall or both, along the outer core perimeter. Each core surface groove can improve heat flux away from the magnetic component. In some embodiments, a thermally conductive gap filler material is disposed adjacent one or more of the core surface grooves. An electronic device includes a magnetic component with one or more core surface grooves positioned on a circuit board inside an enclosure. The gap filler material spans a gap between the magnetic component and an enclosure wall interior surface, thereby providing a thermal bridge between the component and the enclosure facilitating heat flux away from the core to the enclosure wall.
摘要翻译：用于电子电路的磁性部件包括具有沿着外芯周界限定在侧壁，端壁或两者上的一个或多个芯表面凹槽的芯。每个芯表面槽可以改善远离磁性部件的热通量。在一些实施例中，导热间隙填充材料邻近一个或多个芯表面凹槽设置。一种电子设备包括具有位于外壳内的电路板上的一个或多个芯表面凹槽的磁性部件。间隙填充材料跨越磁性部件和外壳壁内表面之间的间隙，从而在部件和外壳之间提供热桥，促使热通量远离芯体到外壳壁。

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