| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a thin line filter wherein a troublesome winding around a ring core is eliminated for easy formation of coil so that a line filter for single phase and three phases is made thin, a troublesome work for separating a coil copper wire from a core is eased, and a core having a smaller sectional area of a magnetic path than that required by the conventional material. SOLUTION: The same number of conductors 2 as the number of phase of power supply are penetrated in a plurality of cylindrical cores 1, so as to form a choke coil for line in a common mode or normal mode, thereby forming a line filter for single phase or three phases. Individual choke coil is also added to the line filter, together with a coil where the conductor 2 is penetrated in the cylindrical core 1. Furthermore, a magnetic thin plate made of amorphous superfine crystal alloy is wound around the core 1 of the line filter, thereby forming a thin line filter.</p> |
