Power line interference test system and method

A technology for interference testing and power lines, applied in the field of power line interference testing systems, can solve problems such as restarting, failure to detect the status of the electronic product under test, and time wasting

Active Publication Date: 2015-03-25
UNIVERSAL SCIENTIFIC INDUSTRIAL (SHANGHAI) CO LTD
View PDF8 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current power supply can provide the AC waveform and test conditions required by the test specification to the device under test, but it cannot detect the state of the electronic product under test and judge whether there is an error.
Therefore, the existing power line interference test is to manually operate the power supply to output a specific waveform to the product under test, and to judge the state of the product under test by human observation, and the product under test often has a new signal during the test process. The phenomenon of power-on causes the overall test time to be lengthy, and also causes testers to waste a lot of time waiting for the product to be tested to restart

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
  • Power line interference test system and method
  • Power line interference test system and method
  • Power line interference test system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] In order to further understand the present invention, the present invention provides the following preferred embodiments and is described below in conjunction with the accompanying drawings.

[0020] Please refer to figure 1 , the present invention provides a power line interference test system, comprising: a host H, a device under test D connected to the host H via a network (USB, RS232 or other wired / wireless transmission interfaces can also be used), and a power supply P , the power supply P is connected to the host H and controlled by the host H, and is used to supply power (AC power in this embodiment) to the device D under test.

[0021] Among them, the host H stores a control program, which can control the power supply P to perform three test modes: instantaneous voltage drop, voltage gradient and short-term interruption, and can start or temporarily stop the power output of the power supply; the device under test D stores a test program, which can actively or p...

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 provides a power line interference test system which is formed by connecting a mainframe, a power supply and a device to be tested with one another. By means of the system, a power line interference test method can be executed. The mainframe controls the power supply to conduct a test mode on the device to be tested, then whether the mainframe can be connected with the device to be tested or not is determined, if yes, an error checking program is executed, and if not, a latch checking program is executed; the error checking program is checked by the device to be tested, the mainframe determines whether a checking result is received or not and then conducts recording, the latch checking program waits for restart of the device to be tested and then conducts recording after determining that the device to be tested is restarted successfully or the device to be tested cannot be restarted, and thus automation of the power line interference test is achieved.

Description

technical field [0001] The invention relates to testing equipment and a testing method for electronic products, in particular to a power line interference testing system and testing method for electronic products, which can perform automatic testing to improve the efficiency and quality of power line interference testing. Background technique [0002] In order to ensure the stable operation of electronic products, most electromagnetic susceptibility (EMS) tests will be carried out to confirm the ability of electronic products to resist electromagnetic interference. Among them, IEC 61000-4-11 provides an AC input voltage instantaneous drop ( Voltage Dips), short-term interruption (Interruption) and voltage gradient (Voltage Variation) immunity test specifications, referred to as power line disturbance (Power Line Disturbance, PLD) test. The aforementioned specifications classify the anti-interference ability of electronic products into three levels: Error Free, Latch-up Free,...

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): G01R31/00
Inventor 邱信雄
Owner UNIVERSAL SCIENTIFIC INDUSTRIAL (SHANGHAI) CO LTD
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