AMORPHOUS ALLOY WITH SMALL LOSS AND HIGH FREQUENCY TRANSFORMER, CHOKE COIL, NOISE FILTER, STEP-UP TRANSFORMER AND SATURABLE REACTOR USING SAID ALLOY

摘要

PURPOSE:To reduce the iron loss in a high frequency region and to improve the thermal stability by adding Fe, Si, B and Ti, V, Mn, Y or Zr in ratios represented by a specified compositional formula. CONSTITUTION:An alloy represented by a formula (Fe1-xMx)zSiyB100-y-z (where M is one or more among Ti, V, Mn, Y, Zr, Mo, Hf, Ta, W and a rare earth metal, x is 0.005-0.1, y is 3-8, z is 80-85, and x+y+z=100) is refined. A high frequency transformer, a choke coil, a noise filter, a step-up transformer and a saturable reactor are obtd. using a core material made of the alloy. They have small iron loss at high frequency and improved thermal stability.