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Planar inductor devices

A planar, inductor technology, applied in the direction of inductors, printed inductors, fixed inductors, etc., can solve problems such as broken, damaged ferrite, manual machine winding of conductive wiring, etc.

Inactive Publication Date: 2013-04-03
TE CONNECTIVITY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, when the size of the inductive device is reduced, then the more brittle ferrites may be damaged and / or shattered during the process of coupling the inductor, transformer, or choke to the communication device
For example, hand or machine winding of conductive wiring around smaller ferrites would be difficult, if not impossible to achieve reliably

Method used

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Examples

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Embodiment Construction

[0033] figure 1 is a side view of one embodiment of a planar inductor device 100 . The device 100 includes a planar substrate 102 in which one or more electronic components of the device 100 are embedded. "Planar" means that the substrate 102 is larger along two vertical dimensions than along a third vertical dimension. The substrate 102 may be a flexible and non-rigid sheet, such as a cured epoxy sheet, or a rigid or semi-rigid board, such as a printed circuit board (PCB) formed of FR-4.

[0034] The substrate 102 has a thickness dimension 104 measured vertically from a lower surface 106 to an opposing upper surface 108 . The thickness dimension 104 can be small, such as 2.5 millimeters or less, 2.0 millimeters or less, 1.0 millimeters or less, or other distances. Alternatively, the thickness dimension 104 may be a larger distance.

[0035] In one embodiment, the substrate 102 includes an interior cavity 120 . The internal cavity 120 may be at least partially filled with...

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Abstract

A planar inductor device (1000) comprises a ferrite body (1016) and a conductive pathway (1002). The ferrite body extends around an opening (1014) in the ferrite body. The conductive pathway includes an input section (1004), a current-splitting section (1016), a coil section (1008), a current-combining section (1010), and an output section (1012) connected with each other, the input section extending toward the opening in the ferrite body. The current- splitting section includes a plurality of conductive coils (1018) joined with the conductive pathway and electrically disposed parallel to each other. The coil section includes the conductive coils helically wrapped around the ferrite body. The current-combining section includes the conductive coils joined with each other, and the output section includes the joined conductive coils extending out of the ferrite body.

Description

technical field [0001] The invention relates to electronic devices such as transformers, inductors, filters, couplers, baluns, duplexers, multiplexers, modules or chokes. Background technique [0002] Some electronic induction devices include a conductive coil wound around a ferrite component. For example, the inductive means may comprise one or more inductors, transformers or chokes. Typically, a wire or set of wires is helically wound several times around a ferrous or magnetic body. Current flows through the wiring to generate magnetic flux in the magnetic body. The magnetic flux can be used to induce a current in another conductive coil and / or filter out components of the current. [0003] Some of these known induction devices are not without their own disadvantages. For example, conventional inductors, transformers, or chokes can be large and / or topologically and performance limited, especially in the case of Ethernet devices and other communication devices. The fer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F17/06H01F30/16
CPCH01F27/2804H01F17/0006H01F27/28H01F5/003H01F17/062
Inventor S.达尔米娅S.范纳拉Z.孙S.R.库贝斯
Owner TE CONNECTIVITY CORP
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