Abstruct -New topologies are presented in this paper, which merge the advantages of double dc-dc con%erters (large and/or large-range input-to-output voltage ratios) and low-ripple input current. Circuits are of the 6'h degree, but two inductors should be wounded on the same core, thus reducing size and cost and improving performances. Application : very-low-voltage. highcurrent DC supply. 0-7803-5692-6/00/s 10.00 (c) 2000 lEEE
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