Inverse approach for shape design of magnetic core

The paper proposes an inverse approach for the identification of magnetic material or for the shape design of a magnetic core. The magnetic material may be replaced with simple layer distribution of imaginary currents on its boundary. Thus, the inverse identification or magnetic core design problem can be reduced to source searching for the simple layer distribution of imaginary currents. The pattern matching figure is employed for the source position searching. The results obtained reveal that the approach is quite effective for solving such problems