3D POLY-PHASE TRANSFORMER

• US 20090257560A1
• Filed: 11/21/2008
• Published: 10/15/2009
• Est. Priority Date: 04/14/2008
• Status: Abandoned Application

• Current Assignee: Cody Transformer, LLC
• Original Assignee: InfiMed, Inc. (New York) (Siemens AG)
• Inventors: Rosevear, Thomas William, Khutoryansky, Oscar
• Application Number:
  US12/275,679
• Publication Number:
  US 20090257560A1
• Time in Patent Office: Days
• US Class Current: 378/101
• CPC Class Codes: H01F 27/24 Magnetic cores
• CPC Class Codes: H01F 27/263 Fastening parts of the core together
• CPC Class Codes: H01F 27/306 Fastening or mounting coils or windings on core, casing or other support
• CPC Class Codes: H01F 30/12 Two-phase, three-phase or polyphase transformers
• CPC Class Codes: H05G 1/10 Power supply arrangements for feeding the X-ray tube supply circuits with converters in general H02M; supply circuits for emitters and amplifiers H04B1/16 - H04B1/1623
• CPC Class Codes: Y10T 29/49073 by assembling coil and core

Abstract

A three dimensional (3D) poly-phase transformer includes a plurality of transformer ribs mechanically and magnetically coupled such that each transformer rib forms a leg of a polygon. A plurality of the polygons forms a 3D polyhedron structure. At least two base planes of the 3D poly-phase transformer including a polygon have a plurality of base ribs. At least four side ribs of the 3D poly-phase transformer are disposed between the base planes. The 3D poly-phase transformer includes a plurality of primary and secondary transformer windings. Another 3D poly-phase transformer includes at least two base planes having a closed curve. Each closed curve includes a plurality of curved base ribs, and at least four side ribs of the 3D poly-phase transformer disposed between the base planes. Methods of manufacturing three dimensional (3D) poly-phase transformers are also described.

Claims

1. A three dimensional (3D) poly-phase transformer comprising:

a plurality of transformer ribs mechanically and magnetically coupled such that each transformer rib forms a leg of a polygon, wherein a plurality of said polygons forms a 3D polyhedron structure, at least two base planes of said 3D poly-phase transformer comprising a polygon having a plurality of base ribs, at least four side ribs of said 3D poly-phase transformer disposed between said base planes;

a plurality of primary transformer windings, each of said primary transformer windings electromagnetically coupled to at least one rib of said plurality of transformer ribs; and

a plurality of secondary transformer windings, each of said secondary transformer windings electromagnetically coupled to at least one rib of said plurality of transformer ribs,

wherein, each of said primary transformer windings is configured to be powered by a phase of a primary poly-phase source of electrical power and each of said secondary transformer windings is configured to provide a secondary source of electrical power at a corresponding phase.

2. The 3D poly-phase transformer of claim 1, wherein said 3D poly-phase transformer comprises an odd number of said transformer ribs.

3. The 3D poly-phase transformer of claim 1, wherein at least one of said at least two base planes of said 3D poly-phase transformer comprises an odd number of said base ribs.

4. The 3D poly-phase transformer of claim 3, wherein at least one of said polygons comprises a pentagon.

5. The 3D poly-phase transformer of claim 4, wherein said polyhedron structure comprises a pentagon prism.

6. The 3D poly-phase transformer of claim 1, wherein at least one of said side ribs comprises a substantially straight side rib.

7. The 3D poly-phase transformer of claim 1, wherein at least one of said side ribs comprises a curved side rib.

8. The 3D poly-phase transformer of claim 1, wherein said plurality of primary transformer windings and said plurality of secondary transformer windings are exclusively disposed on base ribs.

9. The 3D poly-phase transformer of claim 1, comprising three or more base planes, at least one of said three or more base planes comprising at least one curved section.

10. The 3D poly-phase transformer of claim 1, wherein said plurality of primary transformer windings are energized in a magnetic sequence pattern wherein a magnetic flux is alternately switched from a base rib in one of said at least two base planes to a base rib in another base plane.

11. The 3D poly-phase transformer of claim 10, wherein a successive base rib in a rotation direction is magnetically energized on switching to each base plane.

12. An x-ray imaging apparatus for imaging a physiological structure comprising:

an x-ray generator including a three dimensional 3D poly-phase transformer according to claim 1;

a source of x-rays powered by said x-ray generator and configured to transmit x-rays through said physiological structure;

at least one digital detector system configured to detect x-rays emerging from said physiological structure; and

a processor configured to receive an output signal from said at least one digital detector, wherein said output signal can be processed to generate imaging data representative of said physiological structure.

13. The x-ray imaging apparatus of claim 12, wherein said power supply comprises a pulsed power mode for stroboscopic imaging applications.

14. The x-ray imaging apparatus of claim 13, wherein said stroboscopic imaging comprising synchronization to a physiological parameter.

15. An x-ray imaging apparatus for imaging a physiological structure comprising:

an x-ray generator including a three dimensional 3D poly-phase transformer according to claim 1;

a source of x-rays powered by said x-ray generator and configured to transmit x-rays through said physiological structure; and

at least one film based detector system configured to detect x-rays emerging from said physiological structure, wherein said film can be photographically processed to generate imaging data representative of said physiological structure.

16. The x-ray imaging apparatus of claim 15, wherein said power supply comprises a pulsed power mode for stroboscopic imaging applications.

17. The x-ray imaging apparatus of claim 16, wherein said stroboscopic imaging comprising synchronization to a physiological parameter.

18. An x-ray generator for powering an x-ray source comprising:

a 3D poly-phase transformer according to claim 1, said 3D poly-phase transformer configured to accept electrical power from a source of poly-phase electrical power; and

a rectifier circuit configured to rectify said secondary source of electrical power generated by said secondary transformer windings to generate an output voltage,

wherein said output voltage powers said x-ray source.

19. A three dimensional 3D poly-phase transformer comprising:

a plurality of transformer ribs mechanically and magnetically coupled to form a 3D structure, at least two base planes of said 3D poly-phase transformer comprising a closed curve, said closed curve comprising a plurality of curved base ribs, and at least four side ribs of said 3D poly-phase transformer disposed between said base planes;

a plurality of primary transformer windings, each of said primary transformer windings electro-magnetically coupled to at least one rib of said plurality of magnetic transformer ribs; and

a plurality of secondary transformer windings, each of said secondary transformer windings electro-magnetically coupled to at least one rib of said plurality of magnetic transformer ribs,

wherein, each of said primary transformer windings is configured to be powered by a phase of a primary poly-phase source of electrical power and each of said secondary transformer windings is configured to provide a secondary source of electrical power at a corresponding phase.

20. The 3D poly-phase transformer of claim 19, wherein said closed curve of at least one of said at least two base planes comprises a circle.

21. The 3D poly-phase transformer of claim 19, wherein said closed curve of at least one of said at least two base planes comprises an ellipse.

22. The 3D poly-phase transformer of claim 19, wherein said 3D poly-phase transformer comprises an odd number of said transformer ribs.

23. The 3D poly-phase transformer of claim 19, wherein at least one of said at least two base planes of said 3D poly-phase transformer comprises an odd number of said transformer base ribs.

24. The 3D poly-phase transformer of claim 19, wherein said at least one side leg of said 3D poly-phase transformer comprises a substantially straight leg.

25. The 3D poly-phase transformer of claim 19, wherein said at least one side leg of said 3D poly-phase transformer comprises a curved leg.

26. The 3D poly-phase transformer of claim 19, comprising three or more base planes, at least one of said three or more base planes comprising at least one substantially straight section.

27. The 3D poly-phase transformer of claim 19, wherein said plurality of primary transformer windings are energized in a magnetic sequence pattern wherein a magnetic flux is alternately switched from a base rib in one of said at least two base planes to a base rib in another base plane.

28. The 3D poly-phase transformer of claim 27, wherein a successive base rib in a rotation direction is magnetically energized on switching to each base plane.

29. An x-ray imaging apparatus for imaging a physiological structure comprising:

an x-ray generator including a three dimensional 3D poly-phase transformer according to claim 19;

a source of x-rays powered by said x-ray generator and configured to transmit x-rays through said physiological structure;

at least one digital detector system configured to detect x-rays emerging from said physiological structure; and

a processor configured to receive an output signal from said at least one digital detector, wherein said output signal can be processed to generate imaging data representative of said physiological structure.

30. The x-ray imaging apparatus of claim 29, wherein said power supply comprises a pulsed power mode for stroboscopic imaging applications.

31. The x-ray imaging apparatus of claim 30, wherein said stroboscopic imaging comprising synchronization to a physiological parameter.

32. An x-ray imaging apparatus for imaging a physiological structure comprising:

an x-ray generator including a three dimensional 3D poly-phase transformer according to claim 19;

a source of x-rays powered by said x-ray generator and configured to transmit x-rays through said physiological structure; and

at least one film based detector system configured to detect x-rays emerging from said physiological structure, wherein said film can be photographically processed to generate imaging data representative of said physiological structure.

33. The x-ray imaging apparatus of claim 32, wherein said power supply comprises a pulsed power mode for stroboscopic imaging applications.

34. The x-ray imaging apparatus of claim 33, wherein said stroboscopic imaging comprising synchronization to a physiological parameter.

35. An x-ray generator for powering an x-ray source comprising:

a 3D poly-phase transformer according to claim 19, said 3D poly-phase transformer configured to accept electrical power from a source of electrical power; and

a rectifier circuit configured to rectify said secondary source of electrical power generated by said secondary transformer windings to generate an output voltage,

wherein said output voltage powers said x-ray source.

36. A method of manufacture of a three dimensional (3D) poly-phase transformer comprising the steps of:

forming a section of a polygon in a magnetic material;

placing primary and secondary windings on at least one rib of said formed section of a polygon; and

assembling said formed sections together to create a three 3D poly-phase transformer comprising at least two base planes having base ribs and at least 4 side ribs connecting said at least two base planes.

37. The method of claim 36, wherein said step of forming comprises forming by molding a section of a polygon in a magnetic material.

38. The method of claim 36, wherein said step of forming comprises forming a section of a polygon in a ferrite magnetic material.

39. The method of claim 36, wherein said step of assembling further comprises assembling said formed sections together by gluing.

40. The method of claim 39, wherein said step of assembling further comprises assembling said formed sections together by gluing using a glue having a magnetic permeability of greater than 1.

41. The method of claim 36, wherein said step of assembling further comprises assembling said formed sections together by mechanical straps.

42. The method of claim 36, wherein said step of assembling further comprises assembling said formed sections together by mechanical brackets.

43. The method of claim 36, wherein said step of placing comprises placing primary and secondary windings on at least one rib at least one wound bobbin.

44. A method of manufacture of a three dimensional (3D) poly-phase transformer comprising the steps of:

forming a section of a closed curve in a magnetic material;

placing primary and secondary windings on at least one rib of said formed section of a closed curve; and

assembling said formed sections together to create a 3D poly-phase transformer comprising at least two base planes having base ribs and at least 4 side ribs connecting said at least two base planes.

45. The method of claim 44, wherein said step of forming comprises forming by molding a section of a closed curve in a magnetic material.

46. The method of claim 44, wherein said step of forming comprises forming a section of a closed curve in a ferrite magnetic material.

47. The method of claim 44, wherein said step of assembling further comprises assembling said formed sections together by gluing.

48. The method of claim 47, wherein said step of assembling further comprises assembling said formed sections together by gluing using a glue having a magnetic permeability of greater than 1.

49. The method of claim 44, wherein said step of assembling further comprises assembling said formed sections together by mechanical straps.

50. The method of claim 44, wherein said step of assembling further comprises assembling said formed sections together by mechanical brackets.

51. The method of claim 44, wherein said step of placing comprises placing primary and secondary windings on at least one rib using at least one wound bobbin.