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Balanced, symmetrical coil

A technology of coil devices and traces, applied in the direction of coils, coil manufacturing, transformers/inductor coils/windings/connections, etc., can solve problems such as contributing to electrical performance

Active Publication Date: 2021-04-30
维信柔性电路板有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In traditional Rx coil designs, the additional layers or wires required to connect the bridges use unnecessary space without contributing to the electrical performance of the device

Method used

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  • Balanced, symmetrical coil
  • Balanced, symmetrical coil
  • Balanced, symmetrical coil

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0027] Balanced symmetric flexible printed circuit (FPC) coils significantly reduce or minimize required space and achieve significantly increased maximum efficiency in small electronic device applications such as cell phones, deck computers, and the like. figure 1 An example of a circular-shaped coil 100 comprising wires with a rectangular cross-section in an FPC is shown, which includes four in-plane parallel traces 110 , 120 , 130 , 14 . To enhance coil performance, the layout includes: in-plane parallel traces connected in series with other in-plane parallel traces on different layers. Such as figure 1 As shown, four traces 110, 120, 130, 140 in the same layer can be connected in parallel. Although figure 1 Four traces 110, 120, 130, 140 are shown, but any number of traces may be used including, for example, four, five or six traces.

[0028] figure 2 An example of the wires of two circular-shaped coils 200 in an FPC with four in-plane parallel traces is shown, whe...

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PUM

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Abstract

A coil device includes a first conductor on a first layer and arranged in a first spiral shape, a second conductor on a second layer and arranged in a second spiral shape, a transition that connects the first conductor and the second conductor in series, a first terminal connected to an end of the first conductor, and a second terminal connected to an end of the second conductor. The first terminal and the second terminal are outside of the first conductor and the second conductor when viewed in plan. The first conductor and the second conductor each include a plurality of in-plane traces connected in parallel with each other.

Description

technical field [0001] The present invention relates to coils. More specifically, the present invention relates to balanced symmetric coils in flexible printed circuits (FPCs) that can be used in electronic device applications. Background technique [0002] Traditional receiver (Rx) coils include, as Figure 8 Shown is a continuous round copper wire 800 formed in a circular spiral shape. The round Rx coil wire 800 has shield insulation or coating on the outer surface which allows it to have close spacing between each turn without shorting between the wires in adjacent turns of the Rx coil. Therefore, something like Figure 8 The Rx coil of the shown Rx coil will have a lower resistance. [0003] Although such as Figure 8 Conventional Rx coils with round wires as shown in show good performance, but they are not always suitable for device integration due to space constraints in cell phones, tablet computers and other electronic devices. In addition, in order to connect to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F17/00H01F27/28H01F41/04
CPCH01F5/003H01F38/14H01F41/041H01F17/00H01F27/28H01F41/04H01F17/0013H01F27/2804H01F2017/0073H01F2027/2809H01F27/29H01F5/00
Inventor 苏海尔·萨阿达特
Owner 维信柔性电路板有限公司