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

المكتب : الولايات المتحدة الأمريكية
رقم الطلب: 10219114 تاريخ الطلب: 15.08.2002
رقم النشر: 20040032313 تاريخ النشر: 19.02.2004
رقم التسليم: 6914508 تاريخ التسليم: 05.07.2005
نوع النشر: B2
التصنيف الدولي للبراءات:
H01F 5/00
H01F 27/26
H01F 27/28
H05K 1/14
H05K 1/16
Description not available in lang arDescription not available in lang arDescription not available in lang arDescription not available in lang arDescription not available in lang ar
المتقدمون: Galaxy Power, Inc.
المخترعون: Ferencz Andrew
Zvonar Gregory A.
Schroter Bernhard
Miller Gerald
Ng William
الوكلاء: Cesari and McKenna, LLP
بيانات الأولوية: 10219114 15.08.2002 US
العنوان: (EN) Simplified transformer design for a switching power supply
الملخص: 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.