Patent ID: 7919930

Claim:
A coil component comprising: a primary coil; a first secondary coil and a second secondary coil which are opposed to the primary coil, wherein a terminal at a high-voltage side of the first secondary coil is a first terminal, a terminal at a high-voltage side of the second secondary coil is a second terminal, the first secondary coil and the second secondary coil are each coaxially disposed along a common portion of a core to conduct an alternating current substantially even in phase induced by a magnetic flux through the common portion of the core, and the first terminal and the second terminal are reverse in polarity; a first balance coil with an input connected to the first terminal; a second balance coil with an input connected to the second terminal; and a third balance coil comprising one input end connected to a third terminal that is another end of the first secondary coil different from the first terminal, and a second input end connected to a fourth terminal that is a second end of the second secondary coil different from the second terminal.