Patent ID: 8415595
Filing Date: 2013-04-09
Classification: H05B

Abstract:
1. An apparatus comprising: one or more magnetic cores collectively comprising an inner leg located between two outer legs, the legs coupled to one or more connecting portions; one or more conductive coils wound around the inner leg; a heatsink attached to a surface of the one or more magnetic cores that is opposite the inner leg and the one or more conductive coils, the heatsink configured to release thermal energy generated when the one or more conductive coils are energized; a thermal shunt attached to the one or more conductive coils to the heatsink, the thermal shunt adjacent to one side of the one or more magnetic cores, the thermal shunt configured to provide thermal energy from at least one of the one or more magnetic cores and the one or more conductive coils to the heatsink; and a plurality of capacitors configured to allow a reduced-size conductor to couple the one or more conductive coils to a power source; wherein the one or more magnetic cores and the one or more conductive coils are configured to generate substantially balanced magnetic fluxes within a roll when the one or more conductive coils are energized; and wherein the one or more magnetic cores and the one or more conductive coils are configured so that heat created by currents induced in the roll by the magnetic fluxes produces a steady state thermal profile on a surface of the roll, the steady state thermal profile having one peak that falls within a control zone associated with the roll.