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A bi-directionally adjustable magnetoelectric inductor

An inductor and magnetoelectric technology, applied in the direction of continuously variable inductor/transformer, transformer/inductor core, electrical component structure association, etc., can solve the problem that the magnetoelectric controllable inductance cannot realize bidirectional adjustment, etc. Achieve the effects of good dynamic contraction performance, improved adjustment range, and expanded adjustment methods

Active Publication Date: 2018-12-14
河南北斗电气设备有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a two-way adjustable magnetoelectric inductor to solve the problem that the magnetoelectric adjustable inductance cannot be adjusted in two directions in the prior art, expand the adjustment method, and expand the application range of the adjustable inductance

Method used

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  • A bi-directionally adjustable magnetoelectric inductor
  • A bi-directionally adjustable magnetoelectric inductor
  • A bi-directionally adjustable magnetoelectric inductor

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with specific examples, but it is not intended to limit the protection scope of the present invention.

[0022] figure 1 A schematic structural diagram of a bidirectionally adjustable magnetoelectric inductor provided in this embodiment. Such as figure 1 As shown, a two-way adjustable magnetoelectric inductor includes a layered magnetoelectric composite element 1 and a copper coil 3 uniformly wound on the periphery of the layered magnetoelectric composite element; the layered magnetoelectric composite element 1 includes a rectangular iron The magnetic element 101 and the rectangular piezoelectric element 102, the rectangular ferromagnetic element 101 is located on the upper and lower sides of the rectangular piezoelectric element 102 to form a sandwich-like symmetrical structure; the material of the rectangular ferromagnetic element 101 is gallium-doped nickel-zinc ferrite material , the material of ...

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Abstract

The invention belongs to the technical field of electronic components, and discloses a bi-directionally adjustable magnetoelectric inductor, comprising a layered magnetoelectric composite element anda copper coil uniformly wound around the periphery of the layered magnetoelectric composite element. The layered magnetoelectric composite element comprises a rectangular ferromagnetic element and a rectangular piezoelectric element, wherein the rectangular ferromagnetic element forms a sandwich-shaped symmetrical structure on the upper and lower sides of the rectangular piezoelectric element; andthe material of the rectangular ferromagnetic element is a Ga-doped nickel-zinc ferrite material, and the material of the rectangular piezoelectric element is PZT-8. Elongation or shortening of a magnetostrictive layer is caused by an additional electric / magnetic field to change the magnetic permeability so as to correspond to the increase or decrease of the inductance of a peripheral closely-wound coil, thereby realizing the bi-directional adjustability of inductance under the control of an external field, the adjustment mode is expanded and the application range of the adjustable inductanceis expanded.

Description

technical field [0001] The invention belongs to the technical field of electronic components, and in particular relates to a bidirectionally adjustable magnetoelectric inductor. Background technique [0002] As a core electronic component, tunable inductors are often packaged into oscillators, filters, and converters, and are widely used in communications, test and measurement, military, and medical electronics. Traditional mechanically adjustable inductors achieve the purpose of changing the inductance by adjusting the number of turns of the coil with a knob screw, but this contact-type manual adjustment method will introduce a series of practical problems such as large volume, noise, and additional energy consumption. Therefore, compared with traditional devices, it is more practical to develop compact tunable inductance devices with high quality factor, high stability and large adjustable amount. [0003] The magnetoelectric controllable inductor is a new type of inducta...

Claims

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Application Information

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IPC IPC(8): H01F21/08H01F21/06H01F27/24H01F27/40
CPCH01F21/06H01F21/08H01F27/24H01F27/40
Inventor 张吉涛陈冬雨张庆芳耿盛涛王晓雷朱威威李康姜利英曹玲芝
Owner 河南北斗电气设备有限公司
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