Portable circuit testing device

The parameter test circuit and signal processing module of the portable circuit test device solve the problem of parameter instability in circuit testing, achieve the stability of circuit parameters and the accuracy of test data, simplify the circuit structure and improve test efficiency.

CN223401006UActive Publication Date: 2025-09-30JIAN ELECTRONICS TECH INTEGRATED CIRCUIT & COMM TRANSMISSION LAB TECH CO LTD
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Patent Information

Application Number
CN202422623192.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-30
Publication Date
2025-09-30
Estimated Expiration
2034-10-30

AI Technical Summary

Technical Problem

During the test process of the existing circuit testing device, the electrical signal is affected by the external environment, resulting in unstable parameter values, which affects the accuracy of the test data.

Method used

A portable circuit testing device is used, including a parameter test circuit, a signal conversion module and a data processing module. The stability of the circuit parameters is optimized through offset voltage, offset current and common-mode voltage circuits. The ST7735S display module, STM32F407 data processing module and LTC2269 signal conversion module are used for signal processing and visual display.

Benefits of technology

The stability and accuracy of circuit test parameters are improved, the circuit structure is simplified, the manufacturing cost is reduced, and the test efficiency and the operation convenience of the staff are improved.

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Abstract

The utility model relates to the technical field of circuit testing, and aims to solve the technical problem that the accuracy of parameter acquisition during circuit testing is affected due to poor stability of an electric signal in a measuring process in the prior art. The portable circuit testing device comprises a parameter testing circuit, a signal conversion module and a data processing module, wherein the parameter testing circuit is positioned at the front end of the circuit testing device and is used for acquiring various electric signals; the signal conversion module is used for converting the various electric signals into digital signals; according to the utility model, through cooperation of the parameter test circuit and the signal conversion module, types of test parameters obtained by the test circuit are increased, parameter signals obtained by the circuit are enabled to be stably transmitted, fluctuation of parameter values is reduced, and the test accuracy is improved. And meanwhile, the optimized circuit structure not only reduces the manufacturing cost of the circuit, but also improves the accuracy and the working efficiency.
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