Patent ID: 7839242
Filing Date: 2010-11-23
Classification: H02M

Abstract:
1. A microelectromechanical systems (MEMS) magnetic flux switch comprising: a ferromagnetic core that includes a core body that defines an internal cavity the core body having a first end and a second end opposite the first end, the ferromagnetic core further including a center cantilever arm that extends from the first end of the core body and is confined within the internal cavity, the core body having a gap formed in the second end thereof; a motion oscillator disposed within the internal cavity and in proximity to the center cantilever arm and operable to provide impulses that cause the center cantilever arm to resonate within the internal cavity between a switch energization position and a switch de-energization position; a first core body extension extending from the second end of the core body at a first side of the gap and toward a free end of the center cantilever arm and the first end of the core body such that the free end of the center cantilever arm is in proximity to the first core body extension when the center cantilever arm is in the switch energization position; a second core body extension extending from the second end of the core body at a second side of the gap and toward the free end of the center cantilever arm and the first end of the core body such that the free end of the center cantilever arm is in proximity to the second core body extension when the center cantilever arm is in the switch de-energization position; and a conductive coil member disposed in proximity to the core body and responsive to a voltage applied thereto to cause a first magnetic flux loop to flow through the ferromagnetic core when the center cantilever arm is in the switch energization position and a second magnetic flux loop to flow through the ferromagnetic core when the center cantilever arm is in the switch de-energization position.