INDUCTANCE DEVICE, AND POWER SUPPLY

PROBLEM TO BE SOLVED: To provide an inductance device compounding a plurality of inductance elements and arranged to take out the joint of two windings connected in series electrically and applicable to various types of circuitry while ensuring such effects as reduction in mounting area and enhancement in electrical characteristics, and to provide a power supply. SOLUTION: A first flux loop is formed by first and second windings connected in series while arranging the winding direction, and a second flux loop is formed of a third winding. The second flux loop is branched into two paths and the relation with the first flux loop in the branch path is reversed for every branch path. A first branch line is connected with the joint of first and second windings. Since the first branch line can be used as the terminal of the first or/and second windings, the first and second windings can be combined as one winding or used as individual windings in the circuitry. COPYRIGHT: (C)2008,JPO&INPIT