| 摘要 |
A device having good EMC is provided to the installation structure of the auxiliary coil and to reduce a leakage current. The first break coil(42) and second break coil(44) of core are wound. The pin is installed in the first break coil or second break coil. One or more auxiliary coils of the top of first break coil or second break coil or the lower part are wound. At this time, one end of the auxiliary coil is connected to the pin. Moreover, the other end of the auxiliary coil is opened. The auxiliary coil comprises the first auxiliary coil(41) and the second subsidiary coil(43).
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