Inductance device and control method thereof

The invention discloses an inductance device, which comprises a splayed inductor and an annular coil, wherein the annular coil is arranged around the periphery of the splayed inductor; the splayed inductor comprises an input end and a center tap end, the input end of the splayed inductor is located on the first side of the inductance device, and the center tap end is located on the second side ofthe inductance device; the annular coil comprises an input end and a grounding end, the input end of the annular coil is located on the first side of the inductance device, and the grounding end is located on the second side of the inductance device; and the input end of the annular coil is coupled to the input end of the splayed inductor. 一种电感装置，其包含八字型电感及环形线圈，环形线圈围绕八字型电感的外围设置。八字型电感包含输入端及中央抽头端，八字型电感的输入端位于电感装置的第一侧，中央抽头端位于电感装置的第二侧。环形线圈包含输入端及接地端，环形线圈的输入端位于电感装置的第一侧，接地端位于电感装置的第二侧。环形线圈的输入端耦接于八字型电感的输入端。