Noise filter and power conversion apparatus
AssigneeMitsubishi Electric Corporation
InventorsHirokazu TAKABAYASHI, Yasuhiro SHIRAKI
Life of this patent
Estimating the term…
Abstract
A noise filter includes a center conductor, at least one outer conductor, and a core. The outer conductor is cylindrical in shape, and the center conductor is inserted through the interior of the outer conductor. The core is a cylindrical magnetic body, and the center conductor and the at least one outer conductor are inserted through the interior of the core. The center conductor and the at least one outer conductor are insulated from each other. Phase currents for each phase of a symmetrical polyphase alternating current flow through the center conductor and the at least one outer conductor.
Claims21
A noise filter comprising:
- a center conductor;
- a plurality of outer conductors, each being cylindrical in shape and having an interior through which the center conductor is inserted;
- and
- a core that is a cylindrical magnetic body and has an interior through which the center conductor and the outer conductors are inserted,
- wherein
- the center conductor and the outer conductors are insulated from one another, and phase currents of symmetrical polyphase alternating current flow through the center conductor and the outer conductors.
A noise filter comprising:
- a center conductor;
- a plurality of outer conductors, each being cylindrical in shape and having an interior through which the center conductor is inserted;
- and
- a core that is a cylindrical magnetic body and has an interior through which the center conductor and the outer conductors are inserted,
- wherein
- the center conductor and the outer conductors are insulated from one another, and
- round-trip current of direct current flows through the center conductor and the outer conductors.
4-13. (canceled)
Dependencies are inferred from the claim text.