An inductor capable of realizing tri-state non-volatile modulation and its modulation method

Abstract

The invention provides an inductance modulated by a three-state non-volatile voltage pulse and a modulation method for realizing three different inductances, belonging to the technical field of electronic devices. The inductance that can realize the three-state non-volatile modulation includes a polycrystalline PZT ceramic substrate containing a defective dipole, a metal electrode, an amorphous soft magnetic alloy strip magnetic film and an enameled wire, and the polycrystalline PZT containing a defective dipole The PZT ceramic substrate is obtained by acceptor doping the polycrystalline PZT ceramic substrate, and then undergoing polarization and aging treatment. By applying voltage pulses to the upper and lower electrodes of the PZT substrate, after removing the external voltage, three non-volatile transition states can be generated in the magnetic film of the amorphous soft magnetic alloy strip, thereby realizing the regulation of the inductance. The control method is simple in operation, excellent in performance and low in energy consumption, and has broad application prospects in various functional electronic circuit systems such as filtering, tuning, and impedance matching that need to be realized through inductance.

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

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