Matthew A Wilkowski

US Patent:

6335671, Jan 1, 2002

Filed:

Aug 20, 1999

Appl. No.:

09/378138

Inventors:

Robert Joseph Roessler - Rowlett TX
Matthew Anthony Wilkowski - Mesquite TX
Arthur R. Martin - Rowlett TX

Assignee:

Tyco Electronics Logistics AG - Mesquite TX

International Classification:

H01F 2706

US Classification:

336 65, 336 83, 336192

Abstract:

A surface mount core assembly comprises a header with breakaway support rails. The breakaway support rails are used in the manufacturing process to maximize the core window of the assembly, and may be removed to minimize the footprint of the assembly. In the present embodiment, the assembly comprises, for example, a transformer wherein prefabricated conductor rings are used to further maximize the fill of the core window with conductor material.

US Patent:

6342778, Jan 29, 2002

Filed:

Apr 20, 2000

Appl. No.:

09/552811

Inventors:

Robert James Catalano - Mesquite TX 75181
Matthew Anthony Wilkowski - Mesquite TX 75150

International Classification:

G05F 1613

US Classification:

323224, 336200

Abstract:

A low-profile, surface mount magnetic component is described along with magnetic devices and power supplies using the magnetic components. The magnetic component is formed from a magnetic core which is surrounded by a plurality of conductive elements. The conductive elements fit into channels in the sides of the magnetic core, the channels having angled sides that increase in width from the top to the bottom. The conductive elements have their ends bent inwards against the bottom of the magnetic core to form surface mountable contact surfaces. A recess in the top of the magnetic core allows the conductive elements to be loaded before the ends are bent inward so that when the conductive elements are unloaded they fit tightly against the magnetic core and the conductive surfaces are coplanar.

US Patent:

6353379, Mar 5, 2002

Filed:

Feb 28, 2000

Appl. No.:

09/514822

Inventors:

Galliano R. Busletta - Mesquite TX
Robert J. Roessler - Rowlett TX
Matthew A. Wilkowski - Mesquite TX

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

H01F 500

US Classification:

336200, 336232, 336223, 296021

Abstract:

A magnetic device and a method of manufacturing the same. In one embodiment, the device includes: (1) a magnetic core and (2) a winding structure located proximate the magnetic core. The winding structure includes:(2 ) a multilayer main circuit board containing an interconnected first plurality of winding layers, (2 ) a multilayer overlay board located proximate the main circuit board and containing an interconnected second plurality of winding layers and (2 ) conductors coupling the first and second pluralities of winding layers together to cause the first and second pluralities of winding layers to function cooperatively as windings for the magnetic device.

US Patent:

6377150, Apr 23, 2002

Filed:

Jul 13, 2000

Appl. No.:

09/615304

Inventors:

Randy Thomas Heinrich - Dallas TX 75228
Robert Joseph Roessler - Rockwall TX 75087
David Leonard Stevens - Mesquite TX 75149
Matthew Anthony Wilkowski - Mesquite TX 75150
William Lonzo Woods - Kaufman TX 75142

International Classification:

H01F 2708

US Classification:

336 55, 336221, 336200, 336232

Abstract:

An apparatus is disclosed for facilitating heat dissipation in an electrical device hat includes a core structure traversing a substrate when the core structure is in an installed orientation. The apparatus comprises: (a) at least one aperture through the substrate for accommodating traversing by the core structure; each respective aperture has periphery defined by a respective circumjacent face extending a height substantially equal with the substrate thickness; (b) a layer of thermally conductive material situated discontinuously on the circumjacent face of at least one respective aperture. The respective aperture is configured to establish a thermally conductive engagement with at least one facing portion of the core structure traversing the respective aperture in the installed orientation. The method comprises the steps of: (a) providing at least one aperture through the substrate for accommodating the traversing by the core structure; each respective aperture having a circumjacent face extending a height substantially equal with the substrate thickness; (b) providing a layer of thermally conductive material situated discontinuously on the circumjacent face of at least one respective aperture; and (c) assembling the electrical device in the installed orientation. The respective aperture is configured to establish a thermally conductive engagement with at least one facing portion of the core structure traversing the aperture in the installed orientation.

US Patent:

6404316, Jun 11, 2002

Filed:

May 9, 2000

Appl. No.:

09/568169

Inventors:

Galliano R. Busletta - Mesquite TX
Robert J. Catalano - Mesquite TX
Matthew A. Wilkowski - Mesquite TX

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

H01F 2730

US Classification:

336198, 336205, 336206, 336208

Abstract:

A magnetic device and a method of manufacture therefor. In one embodiment, the magnetic device includes: (1) a bobbin having a winding guide and molded-in margins proximate opposing inside flanges of the bobbin, each of the opposing inside flanges having at least one notch formed in an inside face of each of said opposing inside flanges; (2) an inner winding wound about the winding guide and between the molded-in margins; (3) an outer winding wound about the inner winding and the winding guide and between the flanges; and (4) an insulating plate, provided in the at least one notch and interposed between the inner and outer windings, a thickness of the insulating plate providing a predetermined creepage distance between at least one lead of the inner winding and the outer winding.

US Patent:

6597271, Jul 22, 2003

Filed:

Oct 12, 2001

Appl. No.:

09/976814

Inventors:

Galliano Riccardo Busletta - Mesquite TX 75150
Robert Joseph Roessler - Rockwall TX 75087
Karim Nashaat Wassef - Richardson TX 75081
Matthew Anthony Wilkowski - Mesquite TX 75150

International Classification:

H01F 1706

US Classification:

336178, 336212, 336134, 336165

Abstract:

An electromagnetic apparatus having an adjusting effective core gap includes: (a) an electrical winding; and (b) a ferrous core situated proximal with the electrical winding. The core has a first terminus and a second terminus arranged in spaced relation to establish a gap distance between the termini in a region in substantial register with the termini. The winding and the core cooperate to establish an inductance related with an electrical current applied to the winding. At least one terminus of the termini has a configuration responsive to varying the current by effecting selective local saturation of successive portions of the at least one terminus for successive values of the current. The selective local saturation establishes successive new effective gap distances. Each respective new effective gap distance is appropriate for establishing a successive new optimum inductance for the current value then extant.

US Patent:

6727794, Apr 27, 2004

Filed:

Sep 22, 2001

Appl. No.:

09/961492

Inventors:

Galliano Ricardo Busletta - Mesquite TX
Peter Mignano - Austin TX
Robert Joseph Roessler - Rockwall TX
Matthew Anthony Wilkowski - Mesquite TX

Assignee:

Tyco Electronics Logistics, A.G. - Steinach

International Classification:

H01F 500

US Classification:

336200, 336232

Abstract:

An apparatus for establishing inductive coupling in an electrical circuit arranged on a plurality of dielectric substrates, the substrates being in a substantially abutting relationship and presenting a plurality of substantially parallel planar expanses, includes: (a) at least one first core segment situated in at least one first depression provided in a first planar expanse; (b) at least one second core segment situated in at least one second depression provided in a second planar expanse; (c) a selected second core segment is arranged for establishing magnetic flux coupling with a selected first core segment to establish a magnetic core structure; (d) a plurality of electrically conductive through-hole structures traverse at least one substrate; (e) a plurality of electrically conductive circuit traces are arrayed upon at least two of the planar expanses. The conductive traces and the through-hole structures cooperate to establish inductive coupling.

US Patent:

6927667, Aug 9, 2005

Filed:

Nov 1, 2001

Appl. No.:

10/004604

Inventors:

Galliano R. Busletta - Mesquite TX, US
Robert J. Catalano - Mesquite TX, US
Robert J. Roessler - Rockwall TX, US
Matthew A. Wilkowski - Mesquite TX, US
William L. Woods - Kaufman TX, US

Assignee:

Tyco Electronics Power Systems, Inc. - Mesquite TX

International Classification:

H01F027/30

US Classification:

336208, 336192, 336180, 336182, 336223, 336229

Abstract:

A magnetic device is provided that may be employed with surface mount technology. In an advantageous embodiment, the magnetic device includes a magnetic core having a magnetic core half and a springable winding positioned about at least a portion of the magnetic core half. The springable winding includes a terminus biased against the magnetic core half.