| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power transformer sufficiently ensuring insulation between a primary winding W1 and a secondary winding W2 and reducing the capacitance between the primary winding W1 and the secondary winding W2. <P>SOLUTION: The power transformer is provided with a first toroidal core 27 surrounding a first hole 27a formed in its center, the primary winding W1 wound around the first toroidal core 27, a second toroidal core 28 formed apart from the first toroidal core 27 and having a second hole 28a formed in its center, the secondary winding W2 wound around the second toroidal core 28, and looped conductors 29 passing through the first and second toroidal cores 27 and 28 K times (K≥1) in common to be connected together outside of the first and second toroidal cores 27, 28. <P>COPYRIGHT: (C)2009,JPO&INPIT |
