Automatic test system of switch power supply

A technology of automated testing and switching power supply, applied in the direction of power supply testing, etc., to achieve the effect of reducing manpower requirements, reasonable structure, and simplified test steps

Inactive Publication Date: 2015-12-09
LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides an automatic test system for a switching power supply aiming at the current needs and the deficiencies in the development of the prior art

Method used

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  • Automatic test system of switch power supply

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Embodiment

[0013] Embodiment: An automatic test system for switching power supply described in this embodiment, as shown in the attached figure 1 As shown, the circuit board to be tested is provided with a switching power supply to be tested; the automated test system further includes several test instruments: an electronic load instrument, an oscilloscope and a test computer. Connect the electronic load instrument and the switching power supply through a cable, connect the probe of the oscilloscope to the switching power supply, connect the electronic load instrument to the oscilloscope through the GPIB interface, and connect the oscilloscope through the GPIB interface The interface is connected to the test computer.

[0014] The performance test of switching power supply mainly includes Ripple, Transient, Loadline, efficiency test, etc. Using the automated test system described in this embodiment, the following takes the Ripple test as an example to describe its implementation and cons...

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Abstract

The invention discloses an automatic test system of a switch power supply, and relates to the test field of switch power supplies. The automatic test system comprises a switch power supply, a to-be-tested circuit board, an oscilloscope, an electronic load instrument, and a test computer. The switch power supply is arranged on the to-be-tested circuit board, and is connected to the oscilloscope. The switch power supply is also connected to the electronic load instrument through a cable. The electronic load instrument is connected to the oscilloscope through a GPIB interface. The oscilloscope is connected to the test computer through a GPIB interface. An automatic test on an unattended switch power supply is achieved. Test procedures are substantially simplified, the test efficiency is improved, and the utilization rate of test equipment is increased.

Description

technical field [0001] The invention relates to the field of switching power supply testing, in particular to an automatic testing system for switching power supplies. Background technique [0002] The switching power supply is a high-frequency switching energy conversion electronic circuit, which is often used as the power supply of the equipment. In the field of electronic design, switching power supply has become an electronic product due to its small size, light weight, low power consumption, high efficiency, fast conversion speed, wide voltage regulation range, good filtering efficiency, and a small number of required filter capacitors. The most important power supply design method in the design field. [0003] As the mainstream power supply method in the field of electronic design, the design of switching power supply is directly related to the success or failure of product design, the design stability of electronic products and the quality of products. Therefore, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/40
Inventor 李德恒石德礼
Owner LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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