Transformer

In the transformer (2), a forward secondary coil (14f) and a reverse secondary coil (14r) are connected to one or more reference electrodes (16). The forward secondary coil (14f) is provided with a first winding section (58) and a second winding section (60) wound around the forward core (10f). The reverse secondary coil (14r) is provided with a third winding part (68) and a fourth winding part (70) which are wound on the reverse iron core (10f). The first primary coil (12a) is formed around the first winding portion (58) and the third winding portion (68). The second primary coil (12b) is formed around the second winding portion (60) and the fourth winding portion (70). The reference electrodes (16) are plate-shaped. 在该变压器(2)中，正向次级线圈(14f)以及反向次级线圈(14r)与一个或两个以上的基准电极(16)的任一个连接。正向次级线圈(14f)具备卷绕在正向铁芯(10f)上的第一卷绕部(58)和第二卷绕部(60)。反向次级线圈(14r)具备卷绕在反向铁芯(10f)上的第三卷绕部(68)和第四卷绕部(70)。第一初级线圈(12a)形成在第一卷绕部(58)以及第三卷绕部(68)的周围。第二初级线圈(12b)形成在第二卷绕部(60)以及第四卷绕部(70)的周围。基准电极(16)均呈板状。