MEAN WELL RD-125-1224 very loud inductor work, dropping out voltage

[bremenpl]

Hello there,
I have 2 DC converters (model nr in the topic name) that dont work and they both act the same way. The iductor make a really uncomfortable sound and the output voltage keeps dropping (it looks like a capacitor would be charged). I replaced some caps but that havent solved the issue.

Here i attach a video that shows exacly whats happening. I would aprichiate any tips in repairing those DC adapters!
PS: You have to turn up the volume because the inductor sound is not very well heard.

 

[FvM]

I guess you are operating the power supply outside specified range. Did you notice the minimal output current specification in the datasheet? Did you try with higher load current?

 

[bremenpl]

I guess you are operating the power supply outside specified range. Did you notice the minimal output current specification in the datasheet? Did you try with higher load current?

I didnt because what would be the use of a DC converter if it could not run without load?
Without any load at all it does act the same as on the video :/

 

[FvM]

what would be the use of a DC converter if it could not run without load?

The question should be passed to Meanwell. I was just referring to the datasheet.

 

[bremenpl]

I understand. Tommorow at work i will try it out with some small value resistor.

Posted via Topify on Android