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Test System for DC-DC Converters

A DC converter and testing system technology, applied in the power supply field, can solve the problems of inaccurate test results, too many DC/DC converters to be tested, and the power of the DC/DC converters to be tested cannot meet the test requirements, etc., to achieve optimal The effect of test results

Active Publication Date: 2021-02-23
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, an embodiment of the present invention provides a test system for a DC-DC converter, which can solve the problem of loading the DC / DC converter to be tested due to too many DC / DC converters to be tested in the prior art. The power cannot meet the test requirements, and the final test results are inaccurate

Method used

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  • Test System for DC-DC Converters
  • Test System for DC-DC Converters
  • Test System for DC-DC Converters

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] In this application, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes none. other elements specifically listed, or also include elements inherent in such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "com...

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Abstract

The present invention provides a test system for a DC-DC converter, comprising: a unit under test, including n parallel-connected DC-DC converters under test; wherein n is a positive integer greater than or equal to 2; the test unit, the The test unit is connected to the unit under test, and is used for following the preset power cycle curve, with T divided by n 1 The time difference in turn loads power to the measured DC-DC converter in parallel in the tested unit; wherein, the T 1 is the period of the power cycle curve, and the power cycle curve is a cycle curve that increases from 0 to maximum power and then decreases to 0.

Description

technical field [0001] The invention relates to the technical field of power supplies, in particular to a test system for a DC-DC converter. Background technique [0002] A DC-DC converter (Direct current-Direct current converter, DC / DC) is a voltage converter that effectively outputs a fixed voltage after converting an input voltage. As one of the important application fields of DC / DC converters, the field of vehicle power supply technology must be converted into a stable and adjustable DC voltage output by a DC / DC converter due to the poor voltage stabilization characteristics of the DC power generated by the fuel cell. In order to ensure DC The / DC converter can work stably, and it is necessary to test the DC / DC converter after the production is completed. [0003] The existing DC / DC converter test method is to connect multiple DC / DC converters to be tested in parallel for testing. Due to the shunt effect of the parallel connection, the power loaded by each DC / DC convert...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 李元君胡刚毅高文进
Owner WEICHAI POWER CO LTD
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