发明名称 PLANAR TRANSFORMER
摘要 A multi-layered printed circuit board, PCB, includes first windings for a first side of a planar magnetic transformer and second windings for a second side of the planar magnetic transformer. The PCB further includes conductive layers configured as the first windings, conductive layers configured as the second windings, and layers of an isolation material. Each layer of the isolation material is arranged between two conductive layers to provide electrical isolation between the two conductive layers. A group of two or more adjacent conductive layers are all conductive layers of the first windings and are all arranged between two conductive layers of the second windings. The thickness of the isolation material between the group of adjacent conductive layers of the first windings is less than the thickness of the isolation material between a conductive layer of the second windings and a conductive layer of the first windings.
申请公布号 US2014167901(A1) 申请公布日期 2014.06.19
申请号 US201213810288 申请日期 2012.12.19
申请人 Telefonaktiebolaget L M Ericsson (publ) 发明人 Persson Oscar;Karlsson Magnus
分类号 H01F27/28;H01F41/04 主分类号 H01F27/28
代理机构 代理人
主权项 1. A multi-layered printed circuit board, PCB, for providing first windings for a first side of a planar magnetic transformer and second windings for a second side of the planar magnetic transformer, the multi-layered PCB comprising: a plurality of conductive layers configured to provide the first windings; a plurality of conductive layers configured to provide the second windings; and a plurality of layers of an isolation material; wherein: each layer of the isolation material is arranged between an adjacent pair of the conductive layers to provide electrical isolation between said adjacent pair of the conductive layers; and a group of two or more adjacent conductive layers are all conductive layers of the first windings and are all arranged between conductive layers of the second windings, wherein the thickness of the isolation material between at least one of the adjacent pairs of the conductive layers in the group of layers of the first windings is less than the thickness of the isolation material between a conductive layer of the second windings and a conductive layer of the first windings.
地址 Stockholm SE