Regulating light intensity by means of magnetic core with multiple windings

A device for regulating the current passing through a plurality of loads, comprising:

• a plurality of cores of magnetic material,
• a plurality of first electrical circuit means each comprising a respective one of a plurality of primary inductors wrapped around at least a first portion of a respective one of said plurality of cores of magnetic material, and
• a second electrical circuit means comprising a plurality of secondary inductors, each of which is wrapped around at least a second portion of a respective one of said plurality of cores of magnetic material,
• each of said plurality of first electrical circuit means being designed for independent electrical connection to a respective one of said plurality of loads, and having said respective one of said primary inductors arranged in said first electrical circuit means in a manner such that a variation in the inductance of said primary inductor will cause a corresponding variation in the current passing through said load while said load is connected to said first electrical circuit means,
• said second electrical circuit means comprising a control device means for simultaneously varying, at will, electrical current passing through each of said plurality of secondary inductors to cause a variation in the inductance of each of said primary inductors, thereby causing a change in the current passing through each of said plurality of loads.

A device for regulating the current passing through a load, comprising:

• a core of magnetic material,
• a first electrical circuit means comprising a primary inductor wrapped around at least a first portion of said core of magnetic material, and
• a second electrical circuit means comprising a secondary inductor wrapped around at least a second portion of said core of magnetic material,
• said first electrical circuit means being designed for electrical connection to said load,
• said primary inductor being arranged in said first electrical circuit means in a manner such that a variation in the inductance of said primary inductor will cause a corresponding variation in the current passing through said load while said load is connected to said first electrical circuit means,
• said second electrical circuit means comprising a control device means for varying, at will, electrical current passing through said secondary inductor to cause a variation in the inductance of said primary inductor, thereby causing a change in the current passing through said load,
• said first electrical circuit means and said load being designed for use with currents having frequencies above 1 kilohertz.

A device for regulating the current passing through a load, comprising:

• a core of magnetic material,
• a first electrical circuit means comprising a primary inductor wrapped around at least a first portion of said core of magnetic material, and
• a second electrical circuit means comprising a secondary inductor wrapped around at least a second portion of said core of magnetic material,
• said first electrical circuit means being designed for electrical connection to said load,
• said primary inductor being arranged in said first electrical circuit means in a manner such that a variation in the inductance of said primary inductor will cause a corresponding variation in the current passing through said load while said load is connected to said first electrical circuit means,
• said second electrical circuit means comprising a control device means for varying, at will, electrical current passing through said secondary inductor to cause a variation in the inductance of said primary inductor, thereby causing a change in the current passing through said load,
• said current regulation device further comprising an isolation device for isolating one portion of said second electrical circuit means, comprising said secondary inductor, from another portion of said electrical circuit means, comprising said control device means.

A device for regulating the current passing through a load, comprising:

• a core of magnetic material,
• a first electrical circuit means comprising a primary inductor wrapped around at least a first portion of said core of magnetic material, and
• a second electrical circuit means comprising a secondary inductor wrapped around at least a second portion of said core of magnetic material,
• said first electrical circuit means being designed for electrical connection to said load,
• said primary inductor being arranged in said first electrical circuit means in a manner such that a variation in the inductance of said primary inductor will cause a corresponding variation in the current passing through said load while said load is connected to said first electrical circuit means,
• said second electrical circuit means comprising a control device means for varying, at will, electrical current passing through said secondary inductor to cause a variation in the inductance of said primary inductor, thereby causing a change in the current passing through said load, the variation of said electrical current passing through said secondary inductor causing a variation in a magnetic flux that follows a path passing through said first and second portions of said core of magnetic material, said variation in the inductance of said primary inductor being directly caused by said variation in said magnetic fluid as said magnetic flux passes through said first portion of said core of magnetic material.
• wherein said current passing through said secondary inductor is a non-rectified alternating current.