THICK-FILM ELECTRIC-PULSE TRANSFORMER

• US 3,659,240 A
• Filed: 04/30/1970
• Issued: 04/25/1972
• Est. Priority Date: 04/30/1970
• Status: Expired due to Term

• Current Assignee: Allen J. Learned, Jason D. Provance
• Original Assignee: Allen J. Learned, Jason D. Provance
• Inventors: Learned, Allen J., Provance, Jason D.
• Primary Examiner(s): Kozma, Thomas J.
• Application Number:
  US05/033,241
• Time in Patent Office: 726 Days
• Field of Search: 336/200,221,232
• US Class Current: 336/200
• CPC Class Codes: H01F 19/08 Transformers having magnetic bias, e.g. for handling pulses
• CPC Class Codes: H01F 27/255 made from particles H01F27/26 takes precedence
• CPC Class Codes: H01F 41/0206 Manufacturing of magnetic cores by mechanical means magnetic cores per se H01F27/24
• CPC Class Codes: H01F 41/0246 Manufacturing of magnetic circuits by moulding or by pressing powder magnetic cores made by moulding or by pressing powder H01F27/255; soft magnetic particles H01F1/20, H01F1/36

Abstract

A toroidal pulse transformer produced by successive deposition of thick-film deposits of conductor segments, fusible insulation, ferrite, conductor segments completing a first transformer winding; alumina, conductor segments, fusible insulation, ferrite, and conductor segments completing a second transformer winding, the ferrite films being of elongate substantially flat sheet form joined intimately at their ends and separated between their ends by upper conductor segments of the first winding, insulation and lower conductor segments of the second winding; and a modified, simpler form utilizing an integral ferrite single-layer sheet of toroidal shape.

Claims

1. A miniature pulse transformer consisting essentially of a solid mass made up of an elongate non-magnetic insulation substrate and superposed thereon and fusion-united therewith thick-film components including, first means including an elongate first array of thick-film conductor segments individually disposed transversely of said substrate and thereon, second means including an elongate insulative thick film of glass adherent in part to said substrate and covering intermediate portions only of said conductor segments of said first array, third means including a wide elongate thick film of magnetic ferrite disposed on said film of glass over insulated intermediate portions of said conductor segments of said first array, fourth means including a second elongate array of transversely disposed thick-film conductor segments intermediate portions of which overlie said thick film of magnetic ferrite material and each having at least one end portion fustion-united to an underlying end portion of one of the conductor segments of said first array of thick-film conductor segments whereby the conductor segments of said first and second arrays thereof are electrically serially connected to provide a first flat conductive coil encircling and inductively linked to said thick film of magnetic ferrite, and fifth means including third and fourth elongate arrays of transversely disposed thick-film conductor segments and an elongate insulative glass film and a thick film of ferrite, both interposed between intermediate portions of the conductor segments of said third array and those of said fourth array, end portions of said conductor segments of said third and fourth arrayS thereof being integrally joined to form second flat elongate conductive coil inductively linked to the thick film of ferrite of said fifth means, and said thick film of ferrite of said fifth means joining at its ends respective ends of said thick film of magnetic ferrite of said third means, whereby said first and second flat elongate conductive coils are mutually inductively related to a continuous magnetic ferrite flux path through the integrally united elongate ferrite components of said third and fifth means, to form superposed primary and secondary windings of said transformer.