| 摘要 |
PURPOSE:To reduce leakage inductance by winding primary and secondary windings so that they are generally placed one above the other in shape, thereby raising the coupling factor. CONSTITUTION:After a secondary winding 2 and a primary winding 1 are sequentially inserted into the winding groove 5 in a lower magnetic core 3 and fixed, an upper magnetic core 4 is fixed, and the terminal of the secondary winding 2 is soldered to the copper foil terminal 7 of a terminal assembly 6, thereby constructing a step-up transformer. The respective windings 1, 2 in the winding groove 5 are constructed so that the wire width of the primary winding 1 and that of the secondary winding 2 are substantially equal. This can significantly improve the coupling factor. As a result, leakage inductance greatly decreases, and thus the step-up ratio of the step-up transformer can be raised, thereby improving the transformer efficiency. |
