Inductor

An inductor comprising:

• a first magnetic core around which a first coil is wound;
• a second magnetic core disposed to face the first magnetic core and having a second coil wound therearound;
• and
• a third magnetic core disposed between the first magnetic core and the second magnetic core,
• wherein the first magnetic core and the second magnetic, core are formed of silicon steel (Fe—Si), and the third magnetic core is formed of sendust alloy,
• wherein a DC bias of the inductor is 70-78%, and a core loss of the inductor is 330-380 mW/cm3,
• wherein the first magnetic core comprises a longitudinal portion, and a first extending portion and a second extending portion which are vertically extended from both ends of the longitudinal portion of the first magnetic core,
• wherein the second magnetic core comprises a longitudinal portion, and a third extending portion and a fourth extending portion which are vertically extended from both ends of the longitudinal portion of the second magnetic core,
• wherein the third magnetic core comprises a first part and a second part,
• wherein the first part is disposed between the first extending portion and the third extending portion,
• wherein the second part spaced apart from the first part is disposed between the second extending portion and the fourth extending portion,
• wherein the first coil is wound around the first and second extending portions of the first magnetic core, and the second coil is wound around the third and fourth extending portions of the second magnetic core, and
• wherein the inductor is composed of a 50% sendust and 50% silicon steel mixture.