| Original document(13 pages) 中文版 |
A transformer is provided in which leakage inductance and electro-magnetic noise can be reduced without making the transformer larger. This transformer includes a primary winding, a secondary winding and a feedback winding, in which: each winding is wound onto a bobbin so that four winding layers are separately piled in the radius directions of the bobbin's shaft portion; the primary winding is formed by the innermost winding layer and the forth winding layer from the inside; the secondary winding is formed by the second winding layer from the inside; the feedback winding is formed by the third winding layer from the inside; and the feedback winding is wound substantially with no clearance from a position adjacent to one flange portion of the bobbin to a position adjacent to the other flange portion of the bobbin. |
Application Number
申请号 |
200610079268 |
Application Date
申请日 |
2006.04.25 |
| Title 名称 |
Transformer |
Publication Number
公开号 |
1866423 |
Publication Date
公开日 |
2006.11.22 |
| Approval Pub. Date |
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Granted Pub. Date |
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| International Classification 分类号 |
H01F27/36,H01F27/28 |
Applicant(s) Name
申请人 |
Matsushita Electric Works Ltd. |
| Address 地址 |
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| Inventor(s) Name 发明人 |
Kitamura Hiroyasu |
| Attorney & Agent 代理人 |
xu shenmin zhang huiping |
| More information 更 多 信 息 |
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