RESONANCE TRANSFORMER AND POWER SUPPLY UNIT EMPLOYING IT

摘要

A resonance transformer having an O-shaped core, a primary winding and a secondary winding. The O-shaped core is formed of a first split core and a second split core and has a first magnetic leg including a first magnetic gap and a second magnetic leg opposed to the first magnetic leg. The primary winding is wound around the outer circumference of the first magnetic leg to cover at least the first magnetic leg. The secondary winding is wound around the outer circumference of the second magnetic leg.