Title :
Analysis of frequency characteristics of small-sized wide-band compound transformers
Author :
Nishizuka, Norio ; Sato, Masahiro ; Li, Yingdan
Author_Institution :
Toyama Univ., Japan
fDate :
7/1/1998 12:00:00 AM
Abstract :
A compound n:1 transformer useful for inverting, noninverting or balun type wide-band transformer is described. We derived equivalent circuits of the transformers, and analyzed them taking into account frequency characteristics of the specific magnetic permeability μ˙s of ferrite core material. We constructed compound √2:1 transformers using small ferrite cores (outer diameter=2 mm), and measured them over wide frequency range (0.1~2000 MHz). The theoretical and measured transformer characteristics are in good agreement
Keywords :
equivalent circuits; power transformers; transformer cores; 0.1 to 2000 MHz; 2 mm; balun transformer; equivalent circuit; ferrite core; frequency characteristics; inverting transformer; magnetic permeability; noninverting transformer; small-sized wide-band compound n:1 transformer; Equivalent circuits; Ferrites; Frequency; Impedance matching; Magnetic analysis; Magnetic cores; Magnetic materials; Permeability; Transformer cores; Wideband;
Journal_Title :
Magnetics, IEEE Transactions on
