Design of microfabricated inductors

被引:59
作者
Daniel, L [1 ]
Sullivan, CR [1 ]
Sanders, SR [1 ]
机构
[1] Univ Calif Berkeley, Dept Elect Engn & Comp Sci, Berkeley, CA 94720 USA
关键词
anisotropy; application; automatic design; buck converter; code; coil fabrication process; computer program; control of permeability; design; design example; design methodology; distributed gap; eddy currents; efficiency; end turns; fabrication process; hard-baked photoresist; high-frequency power inductors; hysteresis losses; inductance adjustment; inductor geometries; inductors; loss analysis; magnetic thin films; microfabricated inductors; microfabricated inductors design; multilayer core; multiturn windings; numerical simulation; optimization; permalloy; planar inductors; power density; quasi-distributed gap; resonant converter; secondary effects; SEM pictures;
D O I
10.1109/63.774209
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Possible configurations for microfabricated inductors are considered, Inductance can be set by adjusting permeability through control of anisotropy of a permalloy core or via a patterned quasi-distributed gap. A design methodology based on a simple model is proposed. A more accurate model and a numerical optimization are also developed. Design examples for 5- and 10-MHz buck converters and 2.5-MHz resonant converter applications are presented.
引用
收藏
页码:709 / 723
页数:15
相关论文
共 32 条
[1]  
Ahn C.H., 1993, 7TH P INT C SOL STAT, P70
[2]   A comparison of two micromachined inductors (bar- and meander-type) for fully integrated boost DC/DC power converters [J].
Ahn, CH ;
Allen, MG .
IEEE TRANSACTIONS ON POWER ELECTRONICS, 1996, 11 (02) :239-245
[3]  
*ANS CORP, MAXW EM 2D FIELD SIM
[4]  
BRESIL JG, 1997, 28 ANN POW EL SPEC C
[5]  
CHEW WM, 1991, 22 ANN POW EL SPEC C, P673
[6]  
DANIEL L, 1996, MID MICROFABRICATED
[7]   EFFECTS OF EDDY CURRENTS IN TRANSFORMER WINDINGS [J].
DOWELL, PL .
PROCEEDINGS OF THE INSTITUTION OF ELECTRICAL ENGINEERS-LONDON, 1966, 113 (08) :1387-&
[8]  
HU JK, 1997, IEEE IND APPL SOC AN
[9]   PLANAR INDUCTOR [J].
KAWABE, K ;
KOYAMA, H ;
SHIRAE, K .
IEEE TRANSACTIONS ON MAGNETICS, 1984, 20 (05) :1804-1806
[10]  
KIRCHENBERGER U, 1992, 1992 IEEE IND APPL S, V1, P994