| 摘要 |
A transformer ( 50 ) with adjustable leakage inductance includes a first bobbin ( 525 ), a first winding ( 521 ), and a second winding ( 522 ). The first bobbin includes a first region (B 1 ) and a second region (B 2 ). The second winding includes a first coil portion ( 522 a) and a second coil portion ( 522 b). One of the first winding and the first coil portion of the second winding is wound around the first region of the first bobbin, and the other of the first winding and the first coil portion of the second winding is wound outside of the one wound around the first region of the first bobbin. The second coil portion of the second winding is wound around the second region of the first bobbin. In the invention, the leakage inductance of the transformer is adjustable via adjusting the number of the coils of the first coil portion and the second coil portion.
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