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1. (US20040032313) Simplified transformer design for a switching power supply

专利局 : 美国
申请号: 10219114 申请日: 15.08.2002
公布号: 20040032313 公布日: 19.02.2004
授权号: 6914508 授权日: 05.07.2005
公布类型: B2
国际专利分类:
H01F 5/00
H01F 27/26
H01F 27/28
H05K 1/14
H05K 1/16
H 电学
01
基本电气元件
F
磁体;电感;变压器;磁性材料的选择
5
线圈
H 电学
01
基本电气元件
F
磁体;电感;变压器;磁性材料的选择
27
变压器或电感器的一般零部件
24
磁芯
26
把磁芯部件紧固在一起;磁芯在外壳或支架上的固定或安装
H 电学
01
基本电气元件
F
磁体;电感;变压器;磁性材料的选择
27
变压器或电感器的一般零部件
28
线圈;绕组;导电连接
H 电学
05
其他类目不包含的电技术
K
印刷电路;电设备的外壳或结构零部件;电气元件组件的制造
1
印刷电路
02
零部件
14
两个或更多个印刷电路的结构连接
H 电学
05
其他类目不包含的电技术
K
印刷电路;电设备的外壳或结构零部件;电气元件组件的制造
1
印刷电路
16
含有印制电元件的,例如印制电阻、印制电容、印制电感
申请人: Galaxy Power, Inc.
发明人: Ferencz Andrew
Zvonar Gregory A.
Schroter Bernhard
Miller Gerald
Ng William
代理人: Cesari and McKenna, LLP
优先权数据: 10219114 15.08.2002 US
标题: (EN) Simplified transformer design for a switching power supply
摘要: front page image
(EN)

A transformer has a primary winding made from a first conducting trace formed on a first multilayer printed circuit board, and a secondary winding made from a second conducting trace formed on a second multilayer printed circuit board. The primary winding is magnetically coupled to the secondary winding. The windings are etched as traces in copper layers of the PC boards as spirals. The spiral of one copper layer is connected to the spiral of a different copper layer by a via, or vias, formed through the insulating layer of the PC board. The vias are drilled, cleaned, and plated with conducting material, for example copper. By using multiple layers, and by connecting spiral windings of each layer to the windings of the next layer by use of vias, any number of turns can be built into a primary winding, or into a secondary winding.