Manganese-zinc system ferrite material and magnetic core for high frequency power supply transformer

Abstract

Abstract PURPOSE:To enhance permeability and improve loss in high frequency region by forming manganese-zinc system ferrite material through inclusion of calcium oxide, silicon oxide, niobium oxide, potassium oxide. CONSTITUTION:A manganese-zinc system ferrite material through inclusion of calcium oxide, silicon oxide, niobium oxide and potassium oxide, wherein calcium oxide is 0.03-0.2wt% in terms of CaCO3, silicon oxide is 0.001-0.05wt% in terms of SiO2, niobium oxide is 0.001-0.1wt% in terms of Nb2O5 and potassium oxide is 0.3wt% or less in terms of K2CO3. Moreover, content of potassium oxide may also be 0.03-0.2wt% in terms of K2CO3.

Inventors

• 👤 Shunji Onishima
• 👤 鬼嶋　俊二
• 👤 Tadakatsu Sano
• 👤 佐野　忠勝
• 👤 Toshio Saito
• 👤 俊夫 斉藤
• 👤 Akira Morita
• 👤 守田　章

Bibliographic Details