| 摘要 |
PROBLEM TO BE SOLVED: To provide a power converter capable of attaining little noise, small size, and cost reductions. SOLUTION: An anode and a cathode of an LC combined element connected with power wiring as a smoothing capacitor are fixed onto insulating paper, the anode and the cathode are layered and wound on a bar-typed magnetic body such as at least a ferrite with a width larger than that of the insulating paper, and a U-shaped magnetic body is disposed so as to be connected across the bar-typed magnetic body to constitute a toroidal-shaped magnetic circuit. A zero-shape third coil is wound around the U-shaped magnetic body, and an output of the third coil is shorted by a prescribed resistance or a variable resistor. The variable resistor can be inserted into a leakage current passage, and a resistor which can minimize the leakage current is calculated using a calculating means based on the voltage across the variable resistor, thus damping the leakage current. |
