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1. 发明授权

US07417875B2 Power converter employing integrated magnetics with a current multiplier rectifier and method of operating the same 有权
标题翻译：采用具有电流倍增器整流器的集成磁体的功率转换器及其操作方法
公开(公告)号：US07417875B2
公开(公告)日：2008-08-26
申请号：US11349637
申请日：2006-02-08
申请人： Sriram Chandrasekaran , Vivek Mehrotra
发明人： Sriram Chandrasekaran , Vivek Mehrotra
IPC分类号： H02M3/335
CPC分类号： H02M3/337 , H02M3/33592 , H02M3/3376 , Y02B70/1475
摘要： A power converter having input and output nodes and a method of operating the same. In one embodiment, the power converter includes a switching circuit including first, second and third active phase legs. Each of the first, second and third active legs includes a first switch coupled to one of the input nodes and a second switch coupled to another of the input nodes and has a common switching node therebetween. The power converter further includes a magnetic device including first, second and third primary windings, and first, second and third secondary windings. The first, second and third primary windings are coupled to the common switching node of the first, second and third active phase legs, respectively. The power converter still further includes a rectifier including first, second and third rectifier elements interposed between the first, second and third secondary windings, respectively, and one of the output nodes.
摘要翻译：一种具有输入和输出节点的功率转换器及其操作方法。在一个实施例中，功率转换器包括包括第一，第二和第三有源相支路的开关电路。第一，第二和第三活动腿中的每一个包括耦合到输入节点之一的第一开关和耦合到另一个输入节点的第二开关，并且在它们之间具有公共的开关节点。功率转换器还包括包括第一，第二和第三初级绕组以及第一，第二和第三次级绕组的磁性装置。第一，第二和第三初级绕组分别耦合到第一，第二和第三有源相位脚的公共开关节点。功率转换器还包括整流器，其包括分别插入在第一，第二和第三次级绕组之间的第一，第二和第三整流器元件以及输出节点之一。

2. 发明申请

US20080024259A1 Extended E Matrix Integrated Magnetics (MIM) Core 有权
标题翻译：扩展E矩阵集成磁（MIM）核
公开(公告)号：US20080024259A1
公开(公告)日：2008-01-31
申请号：US11866152
申请日：2007-10-02
申请人： Sriram Chandrasekaran , Vivek Mehrotra
发明人： Sriram Chandrasekaran , Vivek Mehrotra
IPC分类号： H01F27/24 , H01F41/02
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 there between. 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”核心，其中多个外部腿部设置在基部上并沿着第一外部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。

3. 发明授权

US07554430B2 Vertical winding structures for planar magnetic switched-mode power converters 有权
标题翻译：平面磁开关电源转换器的垂直绕组结构
公开(公告)号：US07554430B2
公开(公告)日：2009-06-30
申请号：US12015234
申请日：2008-01-16
申请人： Vivek Mehrotra , Jian Sun , Sriram Chandrasekaran
发明人： Vivek Mehrotra , Jian Sun , Sriram Chandrasekaran
IPC分类号： H01F5/00
CPC分类号： H01F27/2804 , H01F27/255 , H02M3/28
摘要： A vertical winding structure for planar integrated magnetics used in switched-mode power converters maintains close coupling between the different windings but reduces the eddy current losses, lowers the DC winding resistance and reduces the number of layers of the PCB. Vertical and horizontal windings can be used together without sacrificing these performance advantages and further minimizing the capacitive coupling between the outer-leg windings and the center-leg winding. This winding structure can be used in a wide range of magnetic structures including isolated and non-isolated CDRs, interleaved CDRs, and buck and boost converters.
摘要翻译：用于开关模式功率转换器的平面集成磁体的垂直绕组结构保持不同绕组之间的紧密耦合，但是减小了涡流损耗，降低了直流绕组电阻并减少了PCB的层数。垂直和水平绕组可以一起使用，而不会牺牲这些性能优势，并进一步最小化外腿绕组和中心腿绕组之间的电容耦合。该绕组结构可用于宽范围的磁结构，包括隔离和非隔离CDR，交错CDR，降压和升压转换器。

4. 发明授权

US07280026B2 Extended E matrix integrated magnetics (MIM) core 有权
标题翻译：扩展E矩阵集成磁性（MIM）核心
公开(公告)号：US07280026B2
公开(公告)日：2007-10-09
申请号：US10922067
申请日：2004-08-19
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。

5. 发明申请

US20060187684A1 Power converter employing integrated magnetics with a current multiplier rectifier and method of operating the same 有权
标题翻译：采用具有电流倍增器整流器的集成磁体的功率转换器及其操作方法
公开(公告)号：US20060187684A1
公开(公告)日：2006-08-24
申请号：US11349637
申请日：2006-02-08
申请人： Sriram Chandrasekaran , Vivek Mehrotra
发明人： Sriram Chandrasekaran , Vivek Mehrotra
IPC分类号： H02M3/335
CPC分类号： H02M3/337 , H02M3/33592 , H02M3/3376 , Y02B70/1475
摘要： A power converter having input and output nodes and a method of operating the same. In one embodiment, the power converter includes a switching circuit including first, second and third active phase legs. Each of the first, second and third active legs includes a first switch coupled to one of the input nodes and a second switch coupled to another of the input nodes and has a common switching node therebetween. The power converter further includes a magnetic device including first, second and third primary windings, and first, second and third secondary windings. The first, second and third primary windings are coupled to the common switching node of the first, second and third active phase legs, respectively. The power converter still further includes a rectifier including first, second and third rectifier elements interposed between the first, second and third secondary windings, respectively, and one of the output nodes.
摘要翻译：一种具有输入和输出节点的功率转换器及其操作方法。在一个实施例中，功率转换器包括包括第一，第二和第三有源相支路的开关电路。第一，第二和第三活动腿中的每一个包括耦合到输入节点之一的第一开关和耦合到另一个输入节点的第二开关，并且在它们之间具有公共的开关节点。功率转换器还包括包括第一，第二和第三初级绕组以及第一，第二和第三次级绕组的磁性装置。第一，第二和第三初级绕组分别耦合到第一，第二和第三有源相位脚的公共开关节点。功率转换器还包括整流器，其包括分别插入在第一，第二和第三次级绕组之间的第一，第二和第三整流器元件以及输出节点之一。

6. 发明授权

US07012414B1 Vertically packaged switched-mode power converter 有权
标题翻译：垂直封装的开关模式电源转换器
公开(公告)号：US07012414B1
公开(公告)日：2006-03-14
申请号：US10922062
申请日：2004-08-19
申请人： Vivek Mehrotra , Jian Sun , Sriram Chandrasekaran
发明人： Vivek Mehrotra , Jian Sun , Sriram Chandrasekaran
IPC分类号： G05F3/06
CPC分类号： H02M7/003 , H01F27/2804 , H01F2038/006 , H05K1/144
摘要： A vertically packaged cellular power converter solves the problems associated with conventional designs and paves the way for a cellular circuit architecture with ultra-low interconnect resistance and inductance. The vertical packaging results in a power flow in the vertical direction (from the bottom to the top) with very short internal interconnects, thereby minimizing the associated conduction losses and permitting high conversion efficiency at high currents. The cellular architecture is ideally suited for generating multiple supply voltages.
摘要翻译：垂直封装的蜂窝功率转换器解决了与常规设计相关的问题，为具有超低互连电阻和电感的蜂窝电路架构铺平了道路。垂直封装导致垂直方向（从底部到顶部）的功率流具有非常短的内部互连，从而最小化相关联的传导损耗并且在高电流下允许高的转换效率。蜂窝结构非常适合产生多个电源电压。

7. 发明申请

US20060038650A1 Vertical winding structures for planar magnetic switched-mode power converters 有权
公开(公告)号：US20060038650A1
公开(公告)日：2006-02-23
申请号：US10922066
申请日：2004-08-19
申请人： Vivek Mehrotra , Jian Sun , Sriram Chandrasekaran
发明人： Vivek Mehrotra , Jian Sun , Sriram Chandrasekaran
IPC分类号： H01F27/02
CPC分类号： H01F27/2804 , H01F27/255 , H02M3/28
摘要： A vertical winding structure for planar integrated magnetics used in switched-mode power converters maintains close coupling between the different windings but reduces the eddy current losses, lowers the DC winding resistance and reduces the number of layers of the PCB. Vertical and horizontal windings can be used together without sacrificing these performance advantages and further minimizing the capacitive coupling between the outer-leg windings and the center-leg winding. This winding structure can be used in a wide range of magnetic structures including isolated and non-isolated CDRs, interleaved CDRs, and buck and boost converters.

8. 发明授权

US06980077B1 Composite magnetic core for switch-mode power converters 有权
标题翻译：用于开关电源转换器的复合磁芯
公开(公告)号：US06980077B1
公开(公告)日：2005-12-27
申请号：US10922068
申请日：2004-08-19
申请人： Sriram Chandrasekaran , Vivek Mehrotra , Jian Sun
发明人： Sriram Chandrasekaran , Vivek Mehrotra , Jian Sun
IPC分类号： H01F3/10 , H01F27/24 , H01F27/255
CPC分类号： H01F27/255 , H01F2003/106 , H01F2027/2814 , H01F2027/348
摘要： A composite magnetic core formed of a high permeability material and a lower permeability, high saturation flux density material prevents core saturation without an air gap and reduces eddy current losses and loss of inductance. The composite core is configured such that the low permeability, high saturation material is located where the flux accumulates from the high permeability sections. The presence of magnetic material having a relatively high permeability keeps the flux confined within the core thereby preventing fringing flux from spilling out into the winding arrangement. This composite core configuration balances the requirements of preventing core saturation and minimizing eddy current losses without increasing either the height or width of the core or the number of windings.
摘要翻译：由高磁导率材料和低磁导率，高饱和磁通密度材料形成的复合磁芯防止磁芯饱和而没有气隙，并减少涡流损耗和电感损耗。复合芯构造成使得低磁导率高饱和材料位于磁通量从高磁导率部分积聚的位置。具有较高磁导率的磁性材料的存在使磁通量保持在磁芯内，从而防止边缘焊剂溢出到卷绕装置中。该复合芯体配置平衡了防止磁芯饱和的要求，并最大限度地减小涡流损耗，而不会增加磁芯的高度或宽度或绕组数量。

9. 发明申请

US20100091522A1 Extended E Matrix Integrated Magnetics (MIM) Core 有权
标题翻译：扩展E矩阵集成磁（MIM）核
公开(公告)号：US20100091522A1
公开(公告)日：2010-04-15
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： H02M3/335 , H01F27/24 , H01F41/00
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。

10. 发明授权

US07633369B2 Extended E matrix integrated magnetics (MIM) core 有权
标题翻译：扩展E矩阵集成磁性（MIM）核心
公开(公告)号：US07633369B2
公开(公告)日：2009-12-15
申请号：US11866152
申请日：2007-10-02
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。

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