Method and apparatus for forming a magnetic component on a printed circuit board

• US 20020089405A1
• Filed: 10/04/2001
• Published: 07/11/2002
• Est. Priority Date: 09/22/2000
• Status: Abandoned Application

• Current Assignee: Ionel Jitaru
• Original Assignee: Ionel Jitaru
• Inventors: Jitaru, Ionel
• Application Number:
  US09/971,790
• Publication Number:
  US 20020089405A1
• Time in Patent Office: Days
• US Class Current: 336/200
• CPC Class Codes: H01F 27/2804 Printed windings
• CPC Class Codes: H01F 27/2866 Combination of wires and sheets
• CPC Class Codes: H05K 1/165 incorporating printed inductors
• CPC Class Codes: Y10T 29/4902 Electromagnet, transformer or inductor
• CPC Class Codes: Y10T 29/49071 by winding or coiling

Abstract

A method and apparatus for forming a magnetic component on a printed circuit board. The printed circuit board has at least one layer including a trace that forms a winding of the magnetic component. Another winding of the magnetic component is formed by a length of wire that is disposed externally to the printed circuit board.

Claims

1. A method for forming a magnetic component on a printed circuit board, comprising providing the circuit board with at least one layer having a trace that forms a winding for the magnetic component, forming a first length of wire into a loop that forms another winding for the magnetic component, and disposing said first length of wire externally to the printed circuit board.

2. The method of claim 1, wherein said step of disposing said first length of wire includes placing said first length of wire on a first external surface of the printed circuit board.

3. The method of claim 2, further comprising tacking said first length of wire to said external surface with an adhesive.

4. The method of claim 2, further comprising forming a second length of wire into a loop that forms yet another winding for the magnetic component, and disposing said second length of wire on a second, opposite external surface of the printed circuit board.

5. The method of claim 1, further comprising interconnecting electrical components to the magnetic component by soldering a lead of the electrical components directly to an end of said first length of wire.

6. An apparatus for forming a magnetic component, comprising a printed circuit board having at least one layer having a trace that forms a winding for the magnetic component, and a first length of wire that is formed in a loop that forms another winding for the magnetic component, said first length of wire being disposed externally to said printed circuit board.

7. The apparatus of claim 6, wherein said first length of wire is disposed on a first external surface of said printed circuit board.

8. The apparatus of claim 7, further comprising a second length of wire that is formed as a loop that forms yet another winding for the magnetic component, said second length of wire being disposed on a second, opposite external surface of said printed circuit board.

9. The apparatus of claim 6, further comprising an electrical shield element disposed over said length of wire.

10. The apparatus of claim 6, wherein the magnetic component includes a ferrite core element, and wherein said printed circuit board includes cut-out areas to permit at least a portion of said ferrite core element to extend through said printed circuit board.