| 摘要 |
PURPOSE:To increase flux density and reduce weight and loss, by a method wherein an intermediate core with a gap is disposed between a main winding and a secondary winding. CONSTITUTION:Between a main winding 2 and a secondary winding 3 is installed an intermediate core 9 with a gap 8. Both ends of the intermediate core 9 are shortcircuited magnetically with a main core 1 by a yoke core 5. When a switch 4 is opened, the operation is not different from conventional manner; when the switch 4 is closed, main flux passes through the intermediate core 9. Since reluctance is small then, main flux may be increased. The intermediate core 9 is required to have a gap. If it has not a gap, main flux does not pass through the main core 1 but through the intermediate core mainly irrespective of whether the switch 4 is opened or closed, thereby the capacitance of the reactor becomes nearly zero. |
