Patent ID: 7088212

Claim:
A transformer for controlling voltage output, comprising: two parallel laminated iron cores, positioned with an insulated spacer and an air gap between them; a primary winding wound around one of said cores; a secondary winding wound around the other of said cores; a movable magnetic shifter positioned between the two cores, said shifter being made of laminated iron comprised of two semi-circular magnetic nuclei connected to supports; springs holding the shifter in position between the iron cores: a motor connected to the shifter for moving the shifter between a position where the shifter overlaps the cores, and a position where the shifter is not overlapping the cores; and a programmable control connected to the motor to control the motion of the shifter; wherein when the shifter overlaps the cores, power transmission from the primary winding to the secondary winding is at a minimum level and the magnetic reluctance is at a maximum, wherein when the shifter is not overlapping the cores, if positioned perpendicular to a surface of said cores, power transmission from the primary winding to the secondary winding increases to a maximum level and the magnetic reluctance is at a maximum.