Magnetic component

• US 8,536,971 B1
• Filed: 04/20/2012
• Issued: 09/17/2013
• Est. Priority Date: 04/20/2012
• Status: Active Grant

• Current Assignee: Saher Waseem, Sana Waseem, Waseem Ahmed Roshen
• Original Assignee: Saher Waseem, Sana Waseem, Waseem Ahmed Roshen
• Inventors: Waseem, Saher, Waseem, Sana, Roshen, Waseem Ahmed
• Primary Examiner(s): Musleh, Mohamad
• Assistant Examiner(s): BAISA, JOSELITO SASIS
• Application Number:
  US13/452,677
• Time in Patent Office: 515 Days
• Field of Search: 336/212, 336/214, 336/215, 336/216, 336/221
• US Class Current: 336/212
• CPC Class Codes: H01F 27/24 Magnetic cores
• CPC Class Codes: H01F 3/10 Composite arrangements of magnetic circuits
• CPC Class Codes: H01F 3/14 Constrictions; Gaps, e.g. air-gaps in magnetic shunt paths H01F3/12
• CPC Class Codes: H01F 38/42 Flyback transformers

Abstract

A magnetic component includes a magnetic component core. The magnetic component core includes a first plate, a second plate, a secondary core post connected between the first plate and the second plate, and a plurality of primary core posts disposed between the first plate and the second plate. Each of the plurality of primary core posts including a first section connected to the first plate and a second section connected to the second plate. The first and second section of each of the plurality of primary core posts is separated by a gap. A secondary winding is formed about the secondary core post. Primary windings are formed about each of the plurality of primary core posts.

Claims

1. A magnetic component, comprising:

a core, including;

a first plate,

a second plate,

a secondary core post connected between the first plate and the second plate,

a plurality of primary core posts disposed between the first plate and the second plate, each of the plurality of primary core posts including a first section connected to the first plate and a second section connected to the second plate, the first and second section of each of the plurality of primary core posts being separated by a gap;

a secondary winding formed about the secondary core post; and

primary windings formed about each of the plurality of primary core posts;

wherein;

the secondary core post is not formed to include an air gap therethrough; and

a cross sectional area of the secondary core post is about equal to the sum of the cross-sectional areas of the plurality of primary core posts.

2. The magnetic component of claim 1, wherein the core comprises a material selected from the list consisting of ferrite, soft iron, steel, amorphous metal, and nano-magnetic materials.

3. The magnetic component of claim 1, wherein at least one of the primary windings is configured to couple to a power source having a high internal impedance.

4. The magnetic component of claim 3, wherein the power source comprises a solar cell.

5. The magnetic component of claim 4, wherein the solar cell has an open circuit voltage of approximately 0.5 volts to approximately 0.65 volts and an internal resistance of approximately 3 ohms.

6. The magnetic component of claim 1, wherein at least one of the plurality of primary windings and the second winding include a high-frequency Litz wire.

7. The magnetic component of claim 1, wherein at least one of the plurality of primary windings and the second winding include a Z-folded flex circuit winding.

8. The magnetic component of claim 1, wherein the magnetic component includes a transformer, a flyback transformer, or coupled inductors.

9. A magnetic component core, comprising:

a first plate,

a second plate,

a secondary core post connected between the first plate and the second plate, and

a plurality of primary core posts disposed between the first plate and the second plate, each of the plurality of primary core posts including a first section connected to the first plate a second section connected to the second plate, the first and second section of each of the plurality of primary core posts being separated by a gap;

wherein;

the secondary core post is not formed to include an air gap therethrough; and

a cross sectional area of the secondary core post is about equal to the sum of the cross-sectional areas of the plurality of primary core posts.

10. The magnetic component core of claim 9, wherein the first plate and the second plate comprise a material selected from the list consisting of ferrite, soft iron, steel, amorphous metal, and nano-magnetic materials.

11. The magnetic component core of claim 9, wherein the gap comprises a dielectric material.

12. The magnetic component core of claim 11, wherein the dielectric material has a relative magnetic permeability of approximately 1.

13. A method of manufacturing a magnetic component, comprising:

forming a first plate of a magnetic component core, the first plate including a first primary core post and a first secondary core post formed over a surface of the first plate, a height of the first primary core post above the surface of the first plate being less than a height of the first secondary core post above the surface of the first plate;

forming a second plate of the magnetic component core, the second plate including a second primary core post and a second secondary core post formed over a surface of the second plate, a height of the second primary core post above the surface of the second plate being less than a height of the second secondary core post above the surface of the second plate; and

connecting the first and second plate of the magnetic component core by joining the first secondary core post to the second secondary core post;

wherein;

after said connecting, a distal end of the first secondary core post contacts a distal end of the second secondary core post such that the connected first secondary core post and second secondary core post does not include an air gap therein.

14. The method of claim 13, including forming a winding around the first and second secondary core posts.

15. The method of claim 13, including forming a winding around the first and second primary core post.

16. The method of claim 15, wherein the winding is configured to couple to a power source having a high internal impedance.

17. The method of claim 13, wherein, when the first of the magnetic component core is connected to the second plate of the magnetic component core a gap is disposed between the first primary core post and the second primary core post.

18. The method of claim 17, including disposing a dielectric material into the gap.

19. The method of claim 18, wherein the dielectric material has a relative magnetic permeability of approximately 1.

20. The method of claim 13, wherein at least one of the first and second plate of the magnetic component core comprises a material selected from the list consisting of ferrite, soft iron, steel, amorphous metal, and nano-magnetic materials.