LARGE CURRENT CHOKE COIL AND ITS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a large current choke coil which has a d.c. superimposing characteristic and inductance temperature characteristic featuring an Fe-Si-Al alloy and is inexpensive because of elimination of insulation processing step during mounting.;SOLUTION: This coke coil is provided with a winding coil 6a which is electrically insulated and formed in an intermediate foot part, and it is formed of a pot-type core 7a made of Fe-Si-Al alloy, and a plate core 5a-1 which is provided with a plurality of electrode terminals 5a-2 and is made of Ni-Zn ferrite. Both ends of the winding coil 6a is electrically connected with the electrode terminals 5a-2 respectively, and the cores 7a and 5a-1 comprises a closed magnetic circuit.;COPYRIGHT: (C)2002,JPO