| 摘要 |
PROBLEM TO BE SOLVED: To achieve a DC-DC converter for preventing loss in a light load. SOLUTION: Improvement has been made to the forward-type DC-DC converter for rectifying a secondary-side circuit by a rectification circuit having first and second switches for driving using first and second drive coil winding being provided at a transformer for converting voltage from a primary-side circuit to the secondary-side circuit. The DC-DC converter has a light load detection section for detecting the light load of output and turning off the first and second switches in a light load.
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