原始名称记载: TDK CORPORATION

An electric power conversion apparatus includes: a first electric power terminal including two coupling terminals; a voltage sensor detecting a voltage between the two coupling terminals; a switching circuit coupled to the first electric power terminal; a transformer including a first winding coupled to the switching circuit, and a second winding; a rectifying circuit coupled to the second winding; a smoothing circuit; a second electric power terminal; and a control circuit. The control circuit causes the rectifying circuit to supply electric power from the second electric power terminal toward the first electric power terminal in a second period that precedes a first period during which electric power is supplied from the first electric power terminal toward the second electric power terminal, and detects a short circuit between the two coupling terminals by comparing the voltage detected by the voltage sensor with a predetermined threshold voltage, in the second period.

A magnetic element includes a first ferromagnetic layer, a second ferromagnetic layer, and an intermediate layer, wherein the intermediate layer is between the first ferromagnetic layer and the second ferromagnetic layer, a magnetization of the first ferromagnetic layer and a magnetization of the second ferromagnetic layer have a component that is anti-ferromagnetically coupled, and at least one of the first ferromagnetic layer, the second ferromagnetic layer, and the intermediate layer does not have mirror symmetry and translational symmetry in any one direction within a plane in which each of the layers extends.