| 摘要 |
PROBLEM TO BE SOLVED: To provide a small-sized transformer for an output without generating DC biased magnetization at all, and to provide the transformer for the inverter output, in which a maximum difficult point is solved. SOLUTION: In dependent symmetric top transformer 1 and transformer 2 in a magnetic circuit are used, the two transformers are employed as the positive half-wave exclusive transformer 1 and the negative half-wave exclusive transformer, primary windings 1P and 2P, secondary windings 1S and 2S and tertiary windings 1T and 2T flowing DC are installed to the transformer 1 and the transformer 2, an DC current, by which the core magnetic flux density of the transformer 1 and the transformer 2 is placed at positive and negative saturation points, is flowed through the tertiary windings at all times and DC biased magnetization is eliminated, and loads are halved by operation only of positive or negative half waves in each transformer, and the transformers can be miniaturized. |
