Patent ID: 6404320
Filing Date: 2002-06-11
Classification: H01F

Abstract:
A method for adjusting the inductance of an inductor including a bobbin having at least one round of wire wound thereon, a first magnetic member having a concavity on a side wall thereof, and a second magnetic member having a protrusion at a first end thereof for allowing said second magnetic member to be partially inserted into said bobbin, comprising the steps of:(a) selecting a reference piece with a suitable thickness to be disposed between said protrusion of said second magnetic member and said side wall of said first magnetic member and closely attached to said protrusion of said second magnetic member and said side wall of said first magnetic member as said second magnetic member is inserted into said bobbin; (b) determining whether the inductance of said inductor is identical to a predetermined value; and (c) partially removing said second magnetic member from a second end thereof in accordance with said thickness of said reference piece if the inductance of said inductor is identical to said predetermined value; otherwise said steps (a) to (c) being repeated until said predetermined inductance value is obtained.