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SEM image of the surface of a fabricated composite film.
Results of the measurement of the fabricated films' the real and imaginary components of the complex permeability.
Device structure and photograph of the inductor: (a) schematic view; (b) photograph; (c) structure; and (d) drawing of the internal circuits.
Simulation results: (a) magnetic flux distribution and (b) magnetic intensity distribution.
Electrical characteristics of the inductor: (a) initial inductance and quality factor for frequency variation (10 kHz–100 MHz); (b) inductance for DC current variation (0–10 A); and (c) temperature change for DC current variation (0–3.75 A).
Application of the inductor to the step-down DC-DC converter: (a) circuit diagram and photographs of the DC-DC converter and (b) measured efficiency of the DC-DC converter.
Example of conventional inductor.
Dimensions of the copper coils.
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