Aging Electronic Load Device of DC Module Power Supply for Laser

Abstract

The invention discloses an aging electronic load device for a DC module power supply for laser, which includes a step reference signal generation module, a load current sampling module, an error amplification module, a constant voltage control module, a drive module, a load interface terminal and a power supply module. The output terminal of the step reference signal generation module is connected to an input terminal of the error amplification module, the output terminal of the load current sampling module is connected to the other input terminal of the error amplification module, and the output terminal of the error amplification module is connected to the input terminal of the constant voltage control module, The output end of the constant voltage control module is connected to the input end of the drive module, and the drive module drives the load interface end; the power supply module supplies power to the error amplifier module and the drive module respectively. This device can replace the working mode required for the actual work of the laser light source, and also enables the DC module to work and age under the actual load condition, which can not only save the aging cost, but also realize the simulation effect.

Description

technical field [0001] The invention relates to the field of component aging, and more particularly relates to an aging electronic load device for a DC module power supply for lasers. Background technique [0002] The drive power supply for opto-mechanical equipment needs to be tested for long-term reliability before it is installed in the opto-mechanical device. The load used for the aging power supply must not only simulate the actual load situation, but also save costs and reflect economic benefits. In the actual application of the optical machine, the load required by the laser in the optical machine is in a step-type current mode, so the output current of the DC drive module is also in a step-type current mode, and the electronic load machine in practical applications cannot completely Simulate the actual loading situation of the DC module power supply. Usually, the electronic load machine has three load modes, constant voltage mode, constant current mode, and constant ...

AI Technical Summary

Problems solved by technology

None of these 3 modes can simulate the dynamic load change form of step DC 3-order jump (0A—3A—6A)

[0003] In the traditional aging method of the power supply, the cost of the resistor is low, but the resistor is easy to be damaged during work, and the aging time of the resistor will cause a large deviation in the load, which will affect the aging result. However, the electronic load machine is used to make the aging load obviously aging The cost is very high and it cannot achieve the effect of simulating the actual load, which is not conducive to optimizing the performance ratio

Images