Title :
Design of microfabricated inductors
Author :
Daniel, Luca ; Sullivan, Charles R. ; Sanders, Seth R.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., California Univ., Berkeley, CA, USA
Abstract :
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. Analysis of secondary effects is also developed. A design example for a 5 MHz buck power converter application is presented. A power density of 12.8 W/cm2 is possible for an efficiency of 94%
Keywords :
Permalloy; air gaps; design engineering; inductors; magnetic anisotropy; magnetic permeability; power convertors; power inductors; 5 MHz; 94 percent; anisotropy; application; buck power converter; design methodology; microfabricated inductors; patterned quasi-distributed gap; permalloy core; permeability; power density; secondary effects; Anisotropic magnetoresistance; Conducting materials; Conductive films; Eddy currents; Geometry; Inductors; Magnetic anisotropy; Magnetic films; Magnetic materials; Permeability;
Conference_Titel :
Power Electronics Specialists Conference, 1996. PESC '96 Record., 27th Annual IEEE
Conference_Location :
Baveno
Print_ISBN :
0-7803-3500-7
DOI :
10.1109/PESC.1996.548772
