Patent ID: 8093978
Filing Date: 2012-01-10
Classification: H01F,H02N

Abstract:
1. A coil component including: a magnetic core; a coil for generating magnetic flux when a predetermined electric current is supplied; an actuator for changing the position of a movable core with respect to said coil in response to a control signal supplied from the outside and for passing said movable core through the magnetic flux generated by said coil, wherein said actuator comprising: a piezoelectric device for creating displacement in parallel with the thickness direction caused by said control signal, a moving body connected to said movable core for moving said movable core in response to the displacement which occurred for said piezoelectric device, and a stationary unit connected to said piezoelectric device and said moving body for rendering said moving body moved by the displacement which occurred for said piezoelectric device to be stationary at a predetermined position.