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Browse Prior Art Database

Multi Aperture Pulse Transformer

IP.com Disclosure Number: IPCOM000093514D
Original Publication Date: 1967-Oct-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 58K

Publishing Venue

IBM

Related People

Calhoun, BA: AUTHOR [+2]

Abstract

A thin rectangular plate of high permeability ferrite is used as a transformer. A matrix of apertures 2 is uniformly dispersed in the body of ferrite plate 4. The number of transformer windings in such a device is equal to the number of conductors 6 that pass through the apertures 2 in alternate directions. Magnetic material 8 surrounding each aperture 2 acts like a small toroid having an inner diameter equal to the aperture diameter and an outer diameter equal to the spacing between apertures and further, having a height equal to the height of the plate. The inductance of the device is approximately that of a toroid having these radial dimensions and a height equal to N times the thickness of the plate, where N is the number of apertures.

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Multi Aperture Pulse Transformer

A thin rectangular plate of high permeability ferrite is used as a transformer. A matrix of apertures 2 is uniformly dispersed in the body of ferrite plate 4. The number of transformer windings in such a device is equal to the number of conductors 6 that pass through the apertures 2 in alternate directions. Magnetic material 8 surrounding each aperture 2 acts like a small toroid having an inner diameter equal to the aperture diameter and an outer diameter equal to the spacing between apertures and further, having a height equal to the height of the plate. The inductance of the device is approximately that of a toroid having these radial dimensions and a height equal to N times the thickness of the plate, where N is the number of apertures.

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