Patent ID: 6414577
Filing Date: 2002-07-02
Classification: H01F,H01H

Abstract:
An apparatus for switching DC relays, RF microwave switches and other switching applications comprising:a housing; an electromagnet mounted in the housing, the electromagnet having a core of ferromagnetic material surrounded by a bobbin, the core having a first end and a second end; a first and a second coil wound on the bobbin, the first coil located at the first end of the core and the second coil located at the second end of the core; a magnet holder housing mounted adjacent the second end of the core, the magnet holder housing having a channel therein; a magnet holder located in the channel, the magnet holder movable between a first position and a second position within the channel; a first permanent magnet mounted in the magnet holder; and the electromagnet being adapted to attract the first permanent magnet and the magnet holder to the first position when the first coil of the electromagnet is momentarily energized, the electromagnet being adapted to repel the first permanent magnet and the magnet holder to the second position when the second coil of the electromagnet is momentarily energized.