| 摘要 |
PROBLEM TO BE SOLVED: To provide a core for a choke coil that can improve output current leveling in a small load, using a simple configuration. SOLUTION: A projection 24, integrated with a ferrite core 21, is provided in parallel with a void 23 of ferrite cores 221 and 22 for forming the core for the choke coil, thus achieving a large inductance in the small load, and preventing magnetic saturation in the ferrite cores 21 and 22 at large load times.
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