Inductor capable of realizing tristate nonvolatile modulation and modulation method thereof

Abstract

The invention provides an inductor capable of realizing tristate nonvolatile modulation and a modulation method of the inductor for realizing thee different inductance values, and belongs to the technical field of electronic devices. The inductor capable of realizing the tristate nonvolatile modulation comprises a polycrystal PZT (Pb-Zr-Ti) ceramic substrate which comprises a defect dipole, a metal electrode, a noncrystal soft magnetic alloy strip magnetic film and an enamelled wire, wherein the polycrystal PZT ceramic substrate which comprises the defect dipole is obtained in a manner that the polycrystal PZT ceramic substrate is subjected to polarization and ageing processing after being subjected to acceptor doping. Voltage pulse is applied to an upper electrode and a lower electrode of the PZT substrate, and a transition state of three types of nonvolatility is generated in the noncrystal soft magnetic alloy strip magnetic film after external voltage is removed so as to regulate the inductance value. The modulation method has the advantages of simpleness in operation, good performance and low energy consumption and has a wide application prospect in filtering, tuning, impedance matching and other functional electronic circuit systems which need to be realized by the inductor.

Description

technical field [0001] The invention belongs to the technical field of electronic devices, and in particular relates to an inductor capable of realizing tri-state non-volatile voltage pulse modulation and a preparation method thereof. The system has wide application prospects. Background technique [0002] As one of the three basic passive electronic components, inductors play an important role in modern electronic circuit systems. With the continuous development of electronic technology, inductors widely used in aerospace, power electronics, voltage-controlled oscillators, filters, impedance matching networks and other fields need to have a certain amount of adjustable inductance to meet the requirements of the electronic machine system. The development needs in the direction of miniaturization, low power consumption, multi-function and high performance. [0003] At present, the methods of regulating inductance mainly include the following categories: discrete type, metal...

AI Technical Summary

Problems solved by technology

When a voltage is applied to the PZT, the strain generated by the PZT will cause the magnetic permeability of the amorphous soft magnetic alloy strip to decrease under the influence of the stress, resulting in a decrease in the overall inductance, with a difference of more than 4 times between the maximum and minimum inductance

However, this inductance regulation method must be realized by continuously applying voltage to the multiferroic heterojunction. After removing the applied voltage, the modulation effect on the inductance will also disappear accordingly, so continuous energy consumption is required to maintain the inductance. modulation effect

Images