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Comparative study of resonant and non-resonant DC-DC converter with parasitic LC components of high-voltage transformer

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4 Author(s)
Takano, H. ; Res. & Dev. Center, Hitachi Med. Corp., Chiba, Japan ; Takahashi, J. ; Sun, J.M. ; Nakaoka, M.

This paper presents a novel nonresonant PWM DC-DC power converter for an X-ray high-voltage power generator using the parasitic impedances of the high-voltage high-frequency link transformer compared to the conventional series-parallel resonant DC-DC power converter. The key point of this approach is to evaluate the effectiveness of a reduction of the turn ratio of the high-voltage high-frequency transformer on improvements in the total power conversion efficiency and the power factor in applying a boost AC-DC power converter as the DC voltage source, especially in the light output load ranges accompanied with long exposure term.

Published in:

Industry Applications Conference, 1998. Thirty-Third IAS Annual Meeting. The 1998 IEEE  (Volume:2 )

Date of Conference:

12-15 Oct. 1998