VARIABLE INDUCTOR

摘要

First and second coils are disposed coaxially with a gap provided therebetween and are configured to mutually cancel out magnetic fields provided thereby. A receptacle portion that defines a space traversing at least a portion of a magnetic flux produced by the coils is provided, and a magnetic powder is contained in the receptacle portion so as to occupy a portion of the space. The magnetic powder moves within the space, and this movement produces a change in the magnetic flux. This change in the magnetic flux appears in the form of a change in the inductance value.

主权项

1. A variable inductor, comprising:
at least one coil that produces a magnetic flux; a receptacle portion that defines a space traversing at least a portion of the magnetic flux produced by the at least one coil; and a magnetic powder contained in the receptacle portion so as to occupy a portion of the space, wherein the magnetic powder is movable within the space, and this movement produces a change in the magnetic flux.