| 摘要 |
PROBLEM TO BE SOLVED: To provide a compact transformer, in which noise reduction effect can be achieved without adding a shield layer, at a low cost.SOLUTION: A transformer 90 includes a primary winding unit 92, a secondary winding unit 94, and a magnetic core 96. The primary winding unit 92 includes a first input primary winding 922, and a first shielding winding 924. The first input primary winding is connected electrically with at least one switch element and connected electrically with the first shielding winding. The secondary winding unit 94 is coupled inductively with the primary winding unit 92, and the first shielding winding 924 is arranged between the first input primary winding 922 and secondary winding unit 94. The primary winding unit 92 and secondary winding unit 94 are assembled to the magnetic core 96. |
