A method for generating pulse square waves based on antiferroelectric ceramic materials

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By utilizing the phase change characteristics of antiferroelectric ceramic materials during charging and discharging, pulse discharge of resistive load is achieved, and the complex structure of the existing pulse square wave generation circuit is solved, and the miniaturization and reliability of the pulse power system is achieved.

CN114978119BActive Publication Date: 2025-03-25XI AN JIAOTONG UNIV

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Patent Information

Application Number: CN202210682427.9
Authority / Receiving Office: CN · China
Patent Type: Patents(China)
Current Assignee / Owner
Filing Date: 2022-06-16
Publication Date: 2025-03-25
Estimated Expiration: 2042-06-16

Application Information

Patent Timeline

16 Jun 2022

Application

CN202210682427.9

25 Mar 2025

Publication

CN114978119B

IPC: H03K3/64

CPC: H03K3/64

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Application Domain

Pulse train generator

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AI Technical Summary

Technical Problem

The existing pulse square wave generation circuit has complex structure and numerous components, which leads to large system size and low reliability, making it difficult to miniaturize the pulse power system.

Method used

The pulse square wave generation method based on antiferroelectric ceramic materials is adopted to achieve pulse discharge of the resistive load through the reverse "ferroelectric-antiferroelectric" phase change of the antiferroelectric ceramic during charging and discharging process, thereby forming a pulse square wave.

Benefits of technology

The circuit system generated by pulse square waves is greatly simplified, the system complexity and volume are reduced, reliability is improved, and the operation is simple and easy to implement.

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Abstract

The invention discloses a pulse square wave generation method based on antiferroelectric ceramic materials, which includes preparing antiferroelectric ceramics; measuring the antiferroelectric ceramic hysteresis loop to obtain the antiferroelectric-ferroelectric phase transition electric field of the antiferroelectric ceramics; polarizing and charging the antiferroelectric ceramics to make the antiferroelectric-ferroelectric phase transition of the antiferroelectric ceramics; and discharging the charged antiferroelectric ceramics to a resistive load to obtain a pulse square wave at both ends of the resistive load. The invention discharges the antiferroelectric ceramics to the resistive load to finally form a pulse square wave with a certain pulse width on the resistive load, which can greatly simplify the circuit system for generating the pulse square wave.

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