| 摘要 |
PROBLEM TO BE SOLVED: To minimize a ripple current flowing through each constitutional part of a power conversion circuit and the ripple current generated in the whole power conversion circuit without making large the size of the circuit itself. SOLUTION: A boost converter 10 has an input terminal 12, an input return terminal 14 and output terminals 16 and 18. The input terminal 12 is connected to a first inductor 20 connected to a node 40. On the other hand, the node 40 is connected to a second inductor 22 connected to an anode terminal of a diode 26, and a cathode terminal of the diode 26 is connected to the output terminal 16. Further, the node 40 is connected to a third inductor 24 connected to the anode terminal of a diode 28, and the cathode terminal of the diode 28 is connected to the output terminal 16. A capacitor 42 is connected between the output terminals 16 and 18. The second inductor 22 is magnetically coupled with the third inductor 24 by a ferrite core. COPYRIGHT: (C)2009,JPO&INPIT
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