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1.发明授权Encapsulated package for power magnetic devices and method of manufacture therefor 失效用于电力磁性装置的封装封装及其制造方法
公开(公告)号：US5787569A
公开(公告)日：1998-08-04
申请号：US604637
申请日：1996-02-21
CPC分类号： H01F27/022 , Y10T29/435 , Y10T29/4902 , Y10T29/49144 , Y10T29/49171
摘要： An encapsulated package for a power magnetic device and a method of manufacture therefor. The power magnetic device has a magnetic core subject to magnetostriction when placed under stress. The package includes: (1) compliant material disposed about at least a portion of the magnetic core and (2) an encapsulant substantially surrounding the compliant material and the magnetic core, the compliant material providing a medium for absorbing stress between the encapsulant and the magnetic core, the compliant material reducing the magnetostriction upon the magnetic core caused by the stress from the encapsulant. In one embodiment, the encapsulant includes a vent to an environment surrounding the package. The vent provides pressure relief for the compliant material, allowing the compliant material to substantially eliminate the magnetostrictive effects.
摘要翻译： 一种用于功率磁性器件的封装封装及其制造方法。 功率磁性器件具有受应力作用时磁致伸缩的磁芯。 包装包括：（1）围绕磁芯的至少一部分设置的顺应性材料和（2）基本上围绕柔性材料和磁芯的密封剂，柔性材料提供用于吸收密封剂和磁性之间的应力的介质 芯，柔性材料减少了由于密封剂的应力引起的磁芯上的磁致伸缩。 在一个实施例中，密封剂包括通向包装周围的环境的通风口。 排气孔为柔性材料提供压力释放，允许柔性材料基本上消除磁致伸缩效应。
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2.发明授权Encapsulated, integrated power magnetic device and method of manufacture therefor 失效封装的集成电力磁性装置及其制造方法
公开(公告)号：US5659462A
公开(公告)日：1997-08-19
申请号：US640583
申请日：1996-04-12
CPC分类号： H01F41/08 , B23Q3/00 , H01F41/0206 , H02M3/00 , H02M3/335 , H01F2019/085 , Y10T29/49073 , Y10T29/49075 , Y10T29/49078 , Y10T29/53196 , Y10T29/53265
摘要： A power magnetic device, a method of manufacture therefor and a power converter. The power magnetic device includes: (1) an isolation transformer having a primary winding and a secondary winding, (2) a switch coupled to the primary winding, (3) a rectifier coupled to the secondary winding and (4) an encapsulant substantially surrounding the isolation transformer, the switch and the rectifier to join the isolation transformer, the switch and the rectifier into an integrated package, the integrated package having: (a) a first power input coupled to a first end of the primary winding, (b) a second power input coupled to the switch, (c) first and second power outputs coupled to the rectifier circuit and (d) a control input coupled to the switch, the control input allowing the switch to be controlled to couple the primary winding to a source of electrical power, the power magnetic device thereby capable of employing the isolation transformer and the rectifier to convert electrical power into DC electrical power.
摘要翻译： 电力磁性装置及其制造方法和功率转换器。 功率磁性装置包括：（1）具有初级绕组和次级绕组的隔离变压器，（2）耦合到初级绕组的开关，（3）耦合到次级绕组的整流器和（4）基本上围绕 所述隔离变压器，所述开关和所述整流器将所述隔离变压器，所述开关和所述整流器连接成集成封装，所述集成封装具有：（a）耦合到所述初级绕组的第一端的第一功率输入，（b） 耦合到所述开关的第二功率输入，（c）耦合到所述整流器电路的第一和第二功率输出和（d）耦合到所述开关的控制输入，所述控制输入允许所述开关被控制以将所述初级绕组耦合到 电力源，因此功率磁性装置能够采用隔离变压器和整流器将电力转换成直流电力。
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公开(公告)号：US5642276A
公开(公告)日：1997-06-24
申请号：US385495
申请日：1995-02-08
IPC分类号： H01L25/07 , H01F17/00 , H01F19/04 , H01F27/29 , H01L23/495 , H01L25/18 , H02M7/00 , H02M7/06 , H02M1/00
CPC分类号： H02M7/003 , H01F17/0006 , H01F19/04 , H01F27/292 , H01L23/49541 , H02M7/068 , H01L2924/0002
摘要： An integral transformer/rectifier component includes a lead frame having terminals for connecting to conductors of a circuit substrate. A transformer primary and secondary winding is mounted on the lead frame and a rectifying diode is mounted on the same frame and is directly connected to a winding terminal end of the secondary winding, The transformer windings and diode are encapsulated in a thermoset plastic. A terminal end of the diode is extended beyond the encapsulation and used as an output terminal of the integral transformer/rectifier component.
摘要翻译： 整体式变压器/整流器部件包括具有用于连接到电路基板的导体的端子的引线框架。 变压器初级和次级绕组安装在引线框架上，整流二极管安装在同一个框架上，并直接连接到次级绕组的绕组终端，变压器绕组和二极管封装在热固性塑料中。 二极管的末端延伸超过封装，并用作积分变压器/整流器组件的输出端子。
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4.发明授权Programmable digital controller for switch mode power conversion and power supply employing the same 失效可编程数字控制器，用于开关模式电源转换和采用此电源的电源
公开(公告)号：US6005377A
公开(公告)日：1999-12-21
申请号：US932263
申请日：1997-09-17
CPC分类号： H02M3/157
摘要： A programmable controller for switch-mode power converters that operates in a digital domain without reliance on operation software and the ability to vastly reduce or eliminate analog circuitry. The digital controller is re-programmable. In one embodiment, the substantially digital portion of the controller is a Field Programmable Gate Array that controls operation of the converter by generally converting an analog reference signal(s) (e.g. the voltage output) into the digital domain. The controller then can perform distributed arithmetic to generate a square wave signal capable of controlling at least a main switch of the converter. The present invention can, if desired, essentially eliminate analog controllers in power conversion systems such as switch-mode converters.
摘要翻译： 用于开关模式电源转换器的可编程控制器，可在数字域中运行，而不依赖于操作软件，并能够大幅度减少或消除模拟电路。 数字控制器可重新编程。 在一个实施例中，控制器的基本数字部分是现场可编程门阵列，其通过将模拟参考信号（例如，电压输出）通常转换成数字域来控制转换器的操作。 然后，控制器可以执行分布式算术以产生能够至少控制转换器的主开关的方波信号。 如果需要，本发明可以基本上消除诸如开关模式转换器的功率转换系统中的模拟控制器。
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5.发明授权Device comprising micromagnetic components for power applications and process for forming device 有权装置包括用于电力应用的微磁组件和用于形成装置的工艺公开(公告)号：US06495019B1
公开(公告)日：2002-12-17
申请号：US09552627
申请日：2000-04-19
IPC分类号： H01L2102
CPC分类号： H01F41/046 , H01L27/08
摘要： The process is provided involving formation of multilayer components in which a photoresist-type material is used not only as a conventional patterning material, but also as an insulating and/or planarizing material between magnetic or electrically conductive layers. A variety of integrated CMOS/micromagnetic components are thereby capable of being formed, including components containing planar inductors and transformers. Additionally, a particular technique is used to etch gold-containing seed layers from a substrate surface without damaging an electroplated copper coil. Also provided is a magnetic material particularly useful in devices such as inductors and transformers. The material is an amorphous iron-cobalt-phosphorus alloy having a composition of CoxPyFez, where x+y+z=100, x is 5 to 15, y is 13 to 20, and z is the remainder. The alloy typically exhibits a coercivity of 0.1 to 0.5 Oe, an electrical resistivity of 100 to 150 &mgr;&OHgr;-cm, and a saturation magnetization of about 16 to about 19 kG, all of which represent improvements over Permalloy.
摘要翻译： 所提供的方法涉及多层组分的形成，其中光致抗蚀剂型材料不仅用作常规图案形成材料，而且用作磁性或导电层之间的绝缘和/或平面化材料。 因此能够形成各种集成的CMOS /微磁组件，包括包含平面电感器和变压器的部件。 另外，使用特定的技术来从衬底表面蚀刻含金种子层，而不会损坏电镀铜线圈。 还提供了在诸如电感器和变压器的装置中特别有用的磁性材料。 该材料是具有CoxPyFez组成的无定形铁 - 钴 - 磷合金，其中x + y + z = 100，x为5至15，y为13至20，z为余量。 该合金通常表现出矫顽力为0.1至0.5Oe，电阻率为100至150μOMEGA-cm，饱和磁化强度为约16至约19kG，这都表示了坡莫合金的改进。
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公开(公告)号：US5747982A
公开(公告)日：1998-05-05
申请号：US761047
申请日：1996-12-05
申请人： Douglas John Dromgoole , Anatoly Feygenson , Robert Charles Frye , Ashraf Wagih Lotfi , King Lien Tai
发明人： Douglas John Dromgoole , Anatoly Feygenson , Robert Charles Frye , Ashraf Wagih Lotfi , King Lien Tai
CPC分类号： H05K1/0256 , H01L25/162 , H05K1/0262 , H05K1/0274 , H01L2924/0002 , H01L2924/3011 , H05K2201/1003 , Y10S323/902
摘要： A silicon-on-silicon dual MCM apparatus comprising a printed circuit board having a voltage isolation boundary contained therein supporting a pair of multi-chip modules on either side of the voltage isolation boundary. The MCMs safely convey signals across the isolation boundary via discrete optical coupling means or the like. The optical coupling means allow safe and efficient conveyance of signals across the voltage isolation boundary enabling a designer to group high voltage components on one side of the boundary and low voltage components on the other side of the boundary. This obviates to a degree the need for multi-layered PCBs. A relatively large number of passive components (resistors and capacitors) are integrated into a silicon substrate with flip-chip analog integrated circuits (ICs). Operational characteristics of the controller are verified after integration and are compared to the discrete version. High voltage isolation requirements, interference, and noise are all considered to determine the most critical portions of the dual MCM layout and design.
摘要翻译： 一种硅上硅双MCM装置，包括其中包含电压隔离边界的印刷电路板，其在电压隔离边界的两侧支撑一对多芯片模块。 MCM通过离散光耦合装置等将信号安全地传送到隔离边界。 光耦合装置允许跨越电压隔离边界安全有效地传输信号，使得设计人员可以对边界一侧的高压部件和边界另一侧的低电压部件进行分组。 这在一定程度上消除了对多层PCB的需求。 通过倒装芯片模拟集成电路（IC）将相对大量的无源元件（电阻和电容器）集成到硅衬底中。 控制器的操作特性在集成后验证，并与离散版本进行比较。 高电压隔离要求，干扰和噪声都被认为是确定双MCM布局和设计的最关键部分。
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公开(公告)号：US06573818B1
公开(公告)日：2003-06-03
申请号：US09540618
申请日：2000-03-31
IPC分类号： H01F2702
CPC分类号： H01F17/0006 , H01F27/245 , H01F27/2804 , H01F2027/2819
摘要： The present invention is a planar spiral inductor a top magnetic layer a bottom magnetic layer; and a plurality of conductive coils disposed between said top magnetic layer and said bottom magnetic layer. A significant difference from prior art is that the top and bottom magnetic layers have their centers effectively cut out using lithographic techniques or other techniques to frame the core of the conductive spirals. An advantage of this structure over the prior art is that when magnetic anisotropies other than shape are kept small, then the magnetic configuration will produce a magnetostatic shape anisotropy such that the easy axis (low energy direction of magnetization) lies parallel to the legs of a rectangular frame or the circumference of a circular frame, as will be described. During operation of the inductor, the field produced by the coils flows in a radial direction and will be perpendicular to the easy axis direction thereby causing magnetization reversal to occur by rotation while advantageously utilizing the full structure in this mode.
摘要翻译： 本发明是一种平面螺旋电感器，一个顶部磁性层，一个底部磁性层; 以及设置在所述顶部磁性层和所述底部磁性层之间的多个导电线圈。 与现有技术的显着差异在于，使用光刻技术或其他技术来使顶部和底部磁性层有效地切出它们的中心以构成导电螺旋的芯。 与现有技术相比，该结构的优点是当除形状之外的磁各向异性保持较小时，则磁性构型将产生静磁形状各向异性，使得容易轴（磁化强度的低能量方向）平行于 矩形框架或圆形框架的圆周，如将要描述的。 在电感器工作期间，由线圈产生的磁场在径向方向上流动并且将垂直于易轴方向，从而通过旋转而产生磁化反转，同时有利地利用该模式中的全部结构。
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8.发明授权
公开(公告)号：US5874826A
公开(公告)日：1999-02-23
申请号：US960633
申请日：1997-10-29
申请人： Qing Chen , Del Ray Hilburn , Ashraf Wagih Lotfi
发明人： Qing Chen , Del Ray Hilburn , Ashraf Wagih Lotfi
摘要： A boost converter module, a method of manufacturing the module and a power converter employing one or more of the same. In one embodiment, the boost converter module includes: (1) a power switch, (2) first and second snubber diodes series-coupled between the power switch and a converter output, (3) a snubber capacitor and a boost diode series-coupled across the second snubber diode and (4) an encapsulant substantially surrounding the power switch, the first and second snubber diodes, the snubber capacitor and the boost diode to join the power switch, the first and second snubber diodes, the snubber capacitor and the boost diode into an integrated package, the integrated package having: (4a) a control input coupled to the power switch, (4b) a power input coupled to the power switch, (4c) a snubber inductor input, coupled to a node between the snubber capacitor and the boost diode and (4d) a power output coupled to the converter output.
摘要翻译： 升压转换器模块，制造模块的方法和使用其中的一个或多个的功率转换器。 在一个实施例中，升压转换器模块包括：（1）功率开关，（2）串联耦合在功率开关和转换器输出之间的第一和第二缓冲二极管，（3）缓冲电容器和升压二极管串联耦合 跨越第二缓冲二极管和（4）基本上围绕功率开关的密封剂，第一和第二缓冲二极管，缓冲电容器和升压二极管以连接功率开关，第一和第二缓冲二极管，缓冲电容器和升压 所述集成封装具有：（4a）耦合到所述电源开关的控制输入，（4b）连接到所述电源开关的电源输入，（4c）缓冲电感器输入端，耦合到所述缓冲器之间的节点 电容器和升压二极管，（4d）耦合到转换器输出的功率输出。
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