Title :
High-Bandwidth Low-Insertion Loss Solenoid Transformers Using FeCoB Multilayers
Author :
Xing Xing ; Sun, Nian X. ; Baoxing Chen
Author_Institution :
Analog Device, Inc.., Wilmington, MA, USA
Abstract :
High-bandwidth low-insertion loss solenoid transformers using a multilayered FeCoB magnetic core have been designed, modeled, fabricated, and characterized for high-frequency power conversion. Various transformer designs are compared in terms of inductance, resistance, quality factor, mutual coupling, and insertion loss. A mutual coupling coefficient of 0.9 up to 50 MHz is achieved for intertwined solenoid transformers with a patterned magnetic core.
Keywords :
Q-factor; cobalt compounds; electric resistance; inductance; iron compounds; magnetic multilayers; solenoids; transformer cores; FeCoB; high-bandwidth low-insertion loss solenoid transformer; high-frequency power conversion; inductance; intertwined solenoid transformer; multilayered FeCoB magnetic core; mutual coupling; patterned magnetic core; quality factor; resistance; transformer design; Inductance; Inductors; Magnetic cores; Permeability; Polyimides; Solenoids; Windings; FeCoB multilayer; integrated solenoid transformers; solenoid inductor modeling;
Journal_Title :
Power Electronics, IEEE Transactions on
DOI :
10.1109/TPEL.2012.2233759
