LOW-PROFILE PLANAR TRANSFORMER FOR USE IN OFF-LINE SWITCHING POWER SUPPLIES - Patent 0476114

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EP 0 476 114 A1

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(43)	Date of publication:
	25.03.1992 Bulletin 1992/13

(21)	Application number: 91907531.0

(22)	Date of filing: 18.03.1991

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International Patent Classification (IPC):

H01F 5/ 02^{( . )}
H01F 19/ 04^{( . )}

H01F 17/ 00^{( . )}

(86)	International application number:
	PCT/US1991/001801

(87)	International publication number:
	WO 1991/015861 (17.10.1991 Gazette 1991/24)

(84)	Designated Contracting States:
	CH DE FR GB IT LI SE

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Priority:

30.03.1990 US 19900502523
07.12.1990 US 19900625540

(71)	Applicant: MULTISOURCE TECHNOLOGY CORPORATION
	Waltham, Massachusetts 02154 (US)

(72)	Inventor:
	ESTROV, Alexander Newton, MA 02166 (US)

(74)	Representative: Görg, Klaus, Dipl.-Ing.
	Hoffmann, Eitle & Partner Patent- und Rechtsanwälte Postfach 81 04 20 D-81904 München D-81904 München (DE)

(54)	LOW-PROFILE PLANAR TRANSFORMER FOR USE IN OFF-LINE SWITCHING POWER SUPPLIES