Comparison of magnetic materials for V-groove inductors in optimized high-frequency DC-DC converters

  title={Comparison of magnetic materials for V-groove inductors in optimized high-frequency DC-DC converters},
  author={Parul Dhagat and Satish Prabhakaran and C. Sullivan},
  journal={IEEE Transactions on Magnetics},
The tradeoff between saturation flux density and resistivity in soft magnetic materials for thin film inductors is examined quantitatively. We use an optimization routine to evaluate the achievable efficiency and power density using designs individually optimized to make best use of particular materials. The optimization selects switching frequency, ripple ratio, inductor dimensions and MOSFET sizes. For the example application of a 3.3- to 1.1-V, 7-A output dc-to-dc converter, Co-Zr-O, Fe-Al-O… CONTINUE READING
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