Patent ID: 7365501

Claim:
An inverter transformer comprising a coil unit including: a bobbin formed with a core-receiving compartment, and including first, second and third coil winding portions and a plurality of windings wound around said first, second and third coil winding portions, respectively; and a transformer core unit having an internal core part that extends into said core-receiving compartment; wherein said windings include primary, secondary and tertiary windings wound around said first, second and third coil winding portions, respectively; wherein said bobbin includes a plurality of said second coil winding portions, and said windings include a plurality of said secondary windings that are wound around said second coil winding portions, respectively; and wherein said bobbin includes a fourth coil winding portion disposed between an adjacent pair of said second coil winding portions, and said windings include a pair of said primary windings that are wound around said first and fourth coil winding portions, respectively.