发明名称 |
Järjestely tiedon siirtämiseksi muuntajassa |
摘要 |
The invention pertains to an arrangement for transferring information between the secondary and primary circuit of a transformer. Control information is transferred to the primary circuit of a power transformer (20) by means of auxiliary windings in the same transformer. The auxiliary windings are arranged in pairs in the transformer core branches in such a manner that the magnetic fluxes ( phi c) do not induce a voltage in the energy-transferring windings (pw1, pw2), and the voltages induced in the auxiliary windings by the magnetic flux ( phi p) corresponding to the energy transfer are opposite both in the primary-side winding pair (cw1a, cw1b) and in the secondary-side winding pair (cw2a, cw2b). Thus the transfer of a control signal and the transfer of energy will not disturb one another. The transformer is advantageously realized as a planar structure on a printed circuit board. The arrangement finds particular utility in the transfer of voltage stabilization control information across a transformer in a switched-mode supply. The advantages of the invention include that it provides fast feedback to the primary circuit of a power transformer at relatively low production costs. <IMAGE> <IMAGE> |
申请公布号 |
FI20000504(A0) |
申请公布日期 |
2000.03.06 |
申请号 |
FI20000000504 |
申请日期 |
2000.03.06 |
申请人 |
NOKIA MULTIMEDIA NETWORK TERMINALS OY,, |
发明人 |
SANTAHUHTA,,RAIMO;HILTUNEN,,REINO |
分类号 |
H01F30/10 |
主分类号 |
H01F30/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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