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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Qiang Li Yan Dong Lee, F.C. |
| Copyright Year | 2010 |
| Description | Author affiliation: Center for Power Electronics Systems Virginia Polytechnic Institute and State University Blacksburg, VA 24061 USA (Qiang Li; Yan Dong; Lee, F.C.) |
| Abstract | Low profile integrated Point-of-Load (POL) converter is today's industry trend for portable electronic applications. Magnetics is the major challenge and bottleneck for achieving low profile high power density integrated POL. So, how to design a low profile magnetic becomes one of the key technologies for integrated POL. Inverse coupling is one of the possible methods to reduce inductor size due to the dc flux cancelling effect. Several integrated low profile coupled inductor structures with different flux patterns (vertical flux and lateral flux) are proposed in this paper based on low temperature co-fired ceramics (LTCC) technology. This paper also reveals that the lateral flux coupled inductor structure can have higher inductance density than vertical flux structure. Two LTCC coupled inductor prototypes are designed and fabricated to verify the theoretical analysis. A 1.5MHz, 5V to 1.2V, 3D integrated buck converter with LTCC coupled inductor substrate is also fabricated. The power density of this integrated converter is as high as $700W/in^{3}.$ |
| Starting Page | 79 |
| Ending Page | 85 |
| File Size | 1004621 |
| Page Count | 7 |
| File Format | |
| ISBN | 9781424447824 |
| ISSN | 10482334 |
| DOI | 10.1109/APEC.2010.5433689 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-02-21 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Inductors Inductance Magnetic cores Coupling circuits Prototypes Coils Buck converters Magnetic flux Power electronics Electronics industry |
| Content Type | Text |
| Resource Type | Article |
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