公开(公告)号：EP1405321A1

公开(公告)日：2004-04-07

申请号：EP02741073.7

申请日：2002-07-01

申请人： Koninklijke Philips Electronics N.V. ,  Philips Intellectual Property & Standards GmbH

发明人： TOLLE, Tobias, G. ,  DUERBAUM, Thomas ,  DOMENSINO, Hendrikus, J., J. ,  SMIDT, Pieter, J., M.

IPC分类号： H01F27/29 ,  H01F17/04 ,  H01F19/00

CPC分类号： H01F17/045 ,  H01F19/00 ,  H01F27/292 ,  H01F27/34 ,  H01F2027/297

摘要： The invention relates to a transformer (10, 10') with a core (11) which has a center piece (11a) with a first and a second flange (11b, 11c), in which a first and a second winding (12, 13) of the transformer (10, 10') are wound on the center piece (11a). To produce a transformer as compact as possible which allows simple adaptation to limit leakage currents, it is proposed that the winding end pieces (12a, 12b) of the first winding (12) guided out of the winding body are guided through at least one recess in the first flange (11b) and that winding end pieces (15a, 15b) of the second winding (13) guided out of the winding body are provided which form at least partly loose line ends. Alternatively, the winding end pieces (12a, 12b) of the first winding (12) guided out of the winding body are guided immediately about the edge of the first flange (11b) and connected with connecting elements (14a, 14b) which are arranged on the side of the first flange (11b) opposite the center piece (11a).

摘要翻译： 本发明涉及一种具有铁芯（11）的变压器（10,10'），该铁芯具有带第一和第二凸缘（11b，11c）的中心件（11a），其中第一和第二绕组 变压器10,10'）缠绕在中心件11a上。 为了制造尽可能紧凑的变压器，其允许简单地适配以限制泄漏电流，建议从绕组体引出的第一绕组（12）的绕组端部件（12a，12b）被引导穿过至少一个凹部 在第一凸缘（11b）中并且设置有从绕线体引出的第二绕组（13）的绕组端部件（15a，15b），其形成至少部分松散的线端。 可替换地，从卷绕体引出的第一绕组（12）的卷绕端部件（12a，12b）被立即引导到第一法兰（11b）的边缘并与连接元件（14a，14b）连接，所述连接元件 在第一凸缘（11b）的与中心件（11a）相对的一侧上。

公开(公告)号：EP1405396A2

公开(公告)日：2004-04-07

申请号：EP02738467.6

申请日：2002-06-20

申请人： Koninklijke Philips Electronics N.V.

发明人： SMIDT, Pieter, J., M. ,  DOMENSINO, Hendrikus, J., J.

IPC分类号： H02M3/335

CPC分类号： H02M3/33576 ,  H02M3/33584

摘要： The present invention relates to a bidirectional flyback switch mode power supply (SMPS), such as a bidirectional flyback converter, and a method for operating it. The SMPS comprises a transformer having primary and secondary windings inductively coupled together, said primary winding being coupled to a voltage input of the converter and said secondary winding being coupled to a voltage output of the converter; a primary control unit comprising a primary switch arranged in series with the primary winding and a secondary control unit comprising a secondary switch arranged in series with the secondary winding. The primary control unit is adapted to compensate input voltage variations, and the secondary control unit is adapted to provide a controlled output power on the secondary side.