Low profile transformer and method for making a low profile transformer

(19)

(11)

EP 1 091 369 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	17.04.2002 Bulletin 2002/16

(43)	Date of publication A2:
	11.04.2001 Bulletin 2001/15

(21)	Application number: 00308677.4

(22)	Date of filing: 03.10.2000

(51)	International Patent Classification (IPC)⁷: H01F 30/10, H01F 41/02, H01F 27/29

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
	Designated Extension States:
	AL LT LV MK RO SI

(30)

Priority:

07.10.1999 US 414408

(71)	Applicant: LUCENT TECHNOLOGIES INC.
	Murray Hill, New Jersey 07974-0636 (US)

(72)	Inventors:
	Busletta, Galliano Riccardo Mesquite, Texas 75150 (US) Woods, William Lonzo, Jr. Kaufman, Texas 75142 (US) Wilkowski, Matthew Anthony Mesquite, Texas 75150 (US) Roessler, Robert Joseph Rowlett, Texas 75088 (US)

(74)	Representative: Warren, Keith Stanley et al
	BARON & WARREN 18 South End Kensington London W8 5BU London W8 5BU (GB)

(54)	Low profile transformer and method for making a low profile transformer

(57) A low profile electrical transformer (10) comprises at least two electrical windings (14) and a ferromagnetic base member (12). The base member is an integral construction presenting a core structure and a plurality of termination structures. The electrical windings are arrayed about the core structure and present a plurality of lead structures which are attached with the termination structures for electrical attachment in a circuit. A method for making the low profile transformer having an electrical winding structure including at least electrical windings and a plurality of termination structures; and a base member having a plurality of termination sites; comprises the steps of: (a) assembling the electrical winding structure and the base member; and (b) during the assembling, attaching the plurality of electrical termination structures with at least some of the plurality of termination sites to present a plurality of electrical termination loci for connection within an electrical circuit.

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