Integrated test system for PTC (Positive Temperature Coefficient) resettable fuse

A self-recovery fuse and comprehensive testing technology, which is applied in the electronic field, can solve the problems of PTC withstand voltage and life, power frequency impact test and experiment, and does not conform to the actual test, so as to improve the test efficiency.

Inactive Publication Date: 2011-06-01
深圳市万瑞和电子有限公司
View PDF2 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the above-mentioned patent discloses a PTC thermistor zero-power voltage effect automatic test system, the system does not test and experiment with items such as PTC operating time, non-operating time, withstand voltage and life, and power frequency impact resistance. Meet the needs of actual testing

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Integrated test system for PTC (Positive Temperature Coefficient) resettable fuse
  • Integrated test system for PTC (Positive Temperature Coefficient) resettable fuse
  • Integrated test system for PTC (Positive Temperature Coefficient) resettable fuse

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

[0016] The basic parameters of PTC resettable fuses include zero power resistance, operating current, operating time and other parameters.

[0017] Among them, the definition of zero power resistance is: zero power resistance means that when measuring the value of PTC self-recovery fuse at a certain temperature, the power consumption added to the PTC self-recovery fuse is extremely low, so low that the PTC self-recovery caused by its power consumption The change in resistance of the fuse is negligible.

[0018] The operating current is defined as: the current flowing through the PTC resettable fuse is sufficient to cause the self-heating temperature rise of the PTC resettable fuse to exceed the Curie temperature. Such a current is called t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an integrated test system for a PTC (Positive Temperature Coefficient) resettable fuse, which comprises an alternating current input interface, an alternating current power supply, a direct current power supply, an action time test module, an inaction time test module, a voltage withstanding life test module, an industrial frequency impact resistance test module, a voltage instrument, a current instrument, a resistance instrument, a relay, a computer, a GPIB (General Purpose Interface Bus) card and an I / O (Input / Output) card, wherein the computer transmits an on-off control instruction to the relay through the I / O card; the relay is switched on or off to generate various test conditions of a PTC resettable fuse; the voltage instrument, current instrument and resistance instrument acquire voltage, current and resistance data of each test module; and the GPIB card is inserted into the computer to carry out data processing so as to obtain a test result. The system disclosed by the invention finishes the integrated test on the PTC resettable fuse, electronically records the test result and obviously improves the test efficiency.

Description

technical field [0001] The invention relates to the field of electronics, in particular to a comprehensive testing system for a PTC self-restoring fuse. Background technique [0002] PTC resettable fuse is also called PTC thermistor, which is a thermistor with positive temperature coefficient. It is often used as a resettable fuse in overload protection circuit, hence the name. [0003] In the production of PTC resettable fuses, it is necessary to test and experiment on the zero-power resistance, operating time, non-operating time, withstand voltage and life, and power frequency impact resistance of PTC resettable fuses. In the past, it was always in different equipment Most of the time, a single function test is performed on the computer, and most of the time it is manually recorded, which leads to the testing of the same product, which requires assembly, setup, testing, recording, and disassembly between different test equipment, which is inefficient and labor-intensive, a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00G01R31/12G01R27/02
Inventor 林栋龚小云
Owner 深圳市万瑞和电子有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap