公开(公告)号：US20160005530A1

公开(公告)日：2016-01-07

申请号：US14322321

申请日：2014-07-02

Applicant: ANALOG DEVICES GLOBAL

Inventor： Jan Kubík

IPC: H01F27/34 ,  H01F27/30

Abstract: Inductive components, such as transformers, can be improved by the inclusion of a magnetic core. However the benefit of having a core is lost if the core enters magnetic saturation. One way to avoid saturation is to provide a bigger core, but this is costly in the context of integrated electronic circuits. The inventor realized that the flux magnetic flux density varies with position in a magnetic core within an integrated circuit, causing parts of the magnetic core to saturate earlier than other parts. This reduces the ultimate performance of the magnetic core. This disclosure provides structures that delay the onset of early saturation, enabling a transformer to handle more power.

Abstract translation: 诸如变压器之类的感应元件可以通过包括磁芯来改善。 然而，如果磁芯进入磁饱和状态，则磁芯的好处就会丢失。 避免饱和的一种方法是提供更大的核心，但是在集成电子电路的情况下这是昂贵的。 发明人认识到，磁通磁通密度随着集成电路内的磁芯中的位置而变化，使得磁芯的一部分比其它部分早一些饱和。 这降低了磁芯的最终性能。 本公开提供延迟早期饱和的开始的结构，使得变压器能够处理更多的功率。

公开(公告)号：US20180061569A1

公开(公告)日：2018-03-01

申请号：US15248775

申请日：2016-08-26

Applicant: Analog Devices Global

Inventor： Jan Kubík ,  Bernard Patrick Stenson ,  Shane Patrick Geary ,  Michael Noel Morrissey

IPC: H01F41/04 ,  H01F41/02 ,  H01F27/28 ,  H01F1/03

CPC classification number: H01F41/041 ,  H01F1/0315 ,  H01F27/2804 ,  H01F41/0206 ,  H01F41/046 ,  H01F2027/2809 ,  H01F2027/2819

Abstract: The disclosure relates to the manufacture of inductive components, in particular transformers, using a combination of microfabrication techniques and discrete component placement. By using a prefabricated core, the core may be made much thicker than one that is deposited using microfabrication techniques. As such, saturation occurs later and the efficiency of the transformer is improved. This is done at a much lower cost than the cost of producing a thicker core by depositing multiple layers using microfabrication techniques.