LED multifunctional tester

Abstract

The invention relates to the field of LED testing, and especially relates to an LED multifunctional tester. The LED multifunctional tester comprises an overload short-circuit protector, a constant-current power supplier, a load module, a power supply module, a to-be-measured light source and a to-be-measured drive power supply; the power supply module is electrically connected with an input end of the overload short-circuit protector, an input end of the constant-current power supplier is electrically connected with an output end of the overload short-circuit protector, the to-be-measured light source is accessed to an output end of the constant-current power supplier, and the to-be-measured drive power supply is accessed to a part between the output end of the overload short-circuit protector and the load module; and the constant-current power supplier adjusts a voltage and a current of an output end of the to-be-measured light source according to a rated parameter of the to-be-measured light source, and the load module adjusts an resistance value of the to-be-measured drive power supply according to a rated parameter of the to-be-measured drive power supply. The LED multifunctional tester has simple structure, can simultaneously measure the quality of an LED light source and the quality of an LED drive power supply, and also can guarantee the measured light source and the measured drive power supply to be not damaged during testing.

Description

technical field [0001] The invention relates to the field of LED testing, in particular to an LED multifunctional tester. Background technique [0002] As a new type of lighting fixture, LED is entering the stage of popularization, but in its production process, whether it is light source, driving power supply or lamp, whether it is testing or maintenance, it is always due to its own failure, coupled with the inappropriate selection of methods and instruments. , Safety measures are not in place, etc., resulting in some products being damaged or even scrapped, which not only increases the production cost to a certain extent, but also makes it unsafe for employees to operate. [0003] After the LED lamp is patched, in the test or maintenance of light sources such as light panels and light strips, electronic voltage regulators are often used. This instrument has a constant voltage output, but the current is not constant, and there are no effective protection measures. Therefore...

AI Technical Summary

Problems solved by technology

[0004] In the production of LED drive power supply, manufacturers of general scale usually use DC electronic load and power meter for testing and maintenance. Since LED drive power supply is a nonlinear device, and DC electronic load is a linear load, when the polarity components are reversed, When a bad part or fault is short-circuited, the power board will be arced, burned, and the components will burst during the test, making most of these driving power sources scrapped

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