Method for automatically measuring DC voltage conversion efficiency

A DC voltage conversion and automatic technology, applied in the direction of power supply testing, etc., can solve problems such as insufficient reflection of DC voltage conversion efficiency, low accuracy of test data, and change of precision resistance value, so as to achieve automatic and intelligent testing. , The test process is convenient, the effect of low temperature drift

Active Publication Date: 2016-01-13
LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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Problems solved by technology

The test engineer needs to manually adjust the electronic load to load, and measure the required output voltage, input voltage, and voltage difference across the precision resistor after loading. After each measurement of a sampled current value, the electronic load needs to be repeatedly operated, which is cumbersome. It takes a long time and cannot get all the values ​​at the same time
When the input current is large, the resistance value of the precision resistor is easily changed by the temperature, and the accuracy of the test data is low, which is not enough to accurately reflect the DC voltage conversion efficiency

Method used

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  • Method for automatically measuring DC voltage conversion efficiency
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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] The present invention provides a method for automatically measuring DC voltage conversion efficiency, as shown in the attached figure 1 , figure 2 As shown, the specific implementation process is:

[0025] Collect the voltage of the DC voltage conversion circuit board through the data collector, and then control the PC (English: Personal Computer, namely: personal computer) through the GPIB bus (General-Purpose Interface Bus (GPIB) is a bus connecting equipment and computers) The programmable electronic load automatically loads and unloads, controls the data collector to automatically access data, and timely feeds back the measurement data to the PC. After the test is completed, the efficiency curve is automatically generated in the PC.

[0026] The whole test process does not require manual operation. The PC controls the automatic lo...

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Abstract

The invention discloses a method for automatically measuring DC voltage conversion efficiency. The specific realization process is as follows: acquiring voltages of a DC voltage conversion circuit board through a data collector, then a personal computer (PC) controlling a programmable electronic load to automatically perform loading and unloading, controlling the data collector to automatically store data and feeding measuring data back to the PC timely through a GPIB bus, and after a test ends, automatically generating an efficiency curve in the PC. Compared to the prior art, the method for automatically measuring the DC voltage conversion efficiency can measure the DC voltage conversion efficiency more efficiently and accurately, simplifies the test process, improves the work efficiency and reduces the workload of test engineers. At the same time, the test precision is improved, and the test data is more accurate.

Description

technical field [0001] The invention relates to the technical field of power supply voltage testing, in particular to a method for automatically measuring DC voltage conversion efficiency with strong practicability. Background technique [0002] With the continuous development of society, the utilization rate of energy in the world is constantly improving. The exploration of new energy and renewable energy is far behind people's demand for energy. The problem of energy consumption is intensified along with the progress of industry. How to save more effectively The utilization of energy has become a topic that people continue to explore. In the field of power supply, the only feasible solution to improve energy utilization is to improve the voltage conversion efficiency. How to measure the DC voltage conversion efficiency more quickly and accurately has always been a problem that plagues power supply test engineers. [0003] The traditional method of measuring efficiency is...

Claims

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Application Information

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IPC IPC(8): G01R31/40
Inventor 孙辉
Owner LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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