Distributed constant-current driving power source-based single-tube high-power laser screening test system

Abstract

The invention provides a distributed constant-current driving power source-based single-tube high-power laser screening test system. The test system is composed of a test host computer, AC / DC power sources and test stations; the test station is internally provided with a communication and control module, an adjustable DC / DC power source and a constant current circuit; a plurality of test stationsconstitute a group of test stations; the test host computer controls the on-off of the AC / DC power sources; the AC / DC power sources convert power frequency alternating current into direct current which is used for providing power for one group of test stations; and the communication and control module receives the test commands of the test host computer so as to control the constant current circuit to achieve constant current driving, and collects constant current so as to generate test data. According to the distributed constant-current driving power source-based single-tube high-power laserscreening test system of the invention, the distributed medium- and small-capacity AC / DC power sources are adopted to supply power for each group of test stations; the adjustable DC / DC power sourcesare arranged in the test stations; after the constant current driving power sources enter steady state operation, the output voltages of the DC / DC power sources can be accurately adjusted. The systemhas the advantages of flexible configuration, high reliability, low energy consumption and the like.

Description

technical field [0001] The invention relates to the technical field of high-power laser aging screening test and constant current drive power supply, and more specifically, to a single-tube high-power laser screening test system based on distributed constant current drive power supply. Background technique [0002] Sophisticated screening refers to applying certain working stress to the product before leaving the factory, observing its working state and performance degradation, and based on this to find unqualified products, reduce the number of early failures after the products are delivered to customers, and eliminate unqualified products. An effective means of improving field reliability. In the mature screening test of high-power single-tube lasers, it is often necessary to formulate test plans according to the characteristics of different products, such as different operating voltages and currents for different products, and it is often necessary to apply alternating wo...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a single-tube high-power laser screening test system based on a distributed constant current drive power supply, to solve the existing constant current drive power supply for laser aging screening test proposed in the background technology, because the centralized power supply scheme is adopted, and the power supply The module output voltage cannot be adjusted online, resulting in problems such as low working efficiency, high power consumption, high cost, inflexible configuration and use, and poor reliability of the test system.

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