| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a filter reactor in which magnetic resistors of a leakage magnetic path are easily and evenly provided though the filter reactor has the simple core shape. <P>SOLUTION: A filter reactor includes: a cylindrical common core 11 around which three coils 13R, 13S, 13T are independently wound, respectively; and a core 12 for leakage magnetic fluxes with an approximately Y-shaped cross section to be arranged inside the common core 11, and spaces among the respective coils 13R, 13S, 13T are partitioned by the common core 11 and the core 12 for leakage magnetic fluxes. To the core 12 for leakage magnetic fluxes, magnetic fluxes are generated by normal mode current which flows to the respective coils 13R, 13S, 13T, and the coils act as inductance to the normal mode current. To the common core 11, magnetic fluxes are generated by normal mode current and common mode current which flow to the respective coils 13R, 13S, 13T, and the coils act as inductance to the common mode current. A gap is provided between the common core 11 and the core 12 for leakage magnetic fluxes. <P>COPYRIGHT: (C)2013,JPO&INPIT |
