DocumentCode :
1260267
Title :
Modeling and Evaluation of Carbon-Nanotube-Based Integrated Power Inductor for On-Chip Switching Power Converters
Author :
Mousa, Omar F. ; Abu Qahouq, Jaber A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Alabama, Tuscaloosa, AL, USA
Volume :
58
Issue :
8
fYear :
2011
Firstpage :
2670
Lastpage :
2679
Abstract :
This paper presents a nanotechnology-based high power-density and low-power-loss on-chip power inductor for dc-dc switching power converters. This power inductor utilizes a composite of bundled multiwalled (concentric) carbon nanotubes (BMWCNTs) and Fe (iron) in order to achieve high performance in a small size. Titanium (Ti) is then added as a coating material on the BMWCNT-based power inductor. The BMWCNT-based power inductor with a single layer and three turns occupies an area of 200 μm × 200 μm. It exhibits an inductance of 206 nH, a quality factor of 427 at 20 MHz, and a dc rated current of 100 mA. The power inductor size and the performance characteristics are competitive with state-of-the-art power inductors. The design, analysis, modeling, and simulation results of the BMWCNT-based power inductor are presented and compared with state-of-the-art conventional power inductors from the literature.
Keywords :
DC-DC power convertors; Q-factor; carbon nanotubes; coatings; low-power electronics; nanoelectronics; power inductors; switching convertors; system-on-chip; titanium; BMWCNT; C; bundled multiwalled carbon nanotube; coating material; dc-dc power converter; high power density on-chip power inductor; integrated power inductor modeling; low power loss on-chip power inductor; nanotechnology; on-chip switching power converter; quality factor; titanium coating; Boundary conditions; Finite element methods; Inductors; Iron; Materials; Mathematical model; Solid modeling; Bundled multiwalled (concentric) carbon nanotubes (BMWCNTs); carbon nanotube (CNT); dc–dc; efficiency; inductor; integrated; multiwalled carbon nanotube (MWCNT); nanotechnology; power converter; power inductor; power loss; quality factor;
fLanguage :
English
Journal_Title :
Electron Devices, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9383
Type :
jour
DOI :
10.1109/TED.2011.2157932
Filename :
5934396
Link To Document :
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