Meanwell LRS-350-24 current limit mod question

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krlenjuska   10 W

10 W
Posts: 94
Joined: Feb 18 2019 4:50pm

Meanwell LRS-350-24 current limit mod question

Post by krlenjuska » Aug 13 2019 5:47pm

How can i mod this SMPS to add potentiometer for current adjustment?

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(Moderator edit to remove spam link after images. This has happened before with others. krlenjuska: do you have any ideas how this happened?)

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fechter   100 GW

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Location: California Bay Area, USA

Re: Meanwell LRS-350-24 current limit mod question

Post by fechter » Aug 20 2019 11:19am

It's pretty hard to see in the pictures. The focus is not good.

I can't see a current measuring shunt on the board. It's possible this model does not have secondary side current limiting. Some models have only primary side limiting which will cause the supply to go into "hiccup" mode if the current limit is reached. If this is the case, it is not a good supply to use as a battery charger.

Maybe try one more time with pictures. Try to get the camera straight above the board and take pics on both sides.
Also try to read the number off the 8 pin chip on the bottom.
"One test is worth a thousand opinions"

krlenjuska   10 W

10 W
Posts: 94
Joined: Feb 18 2019 4:50pm

Re: Meanwell LRS-350-24 current limit mod question

Post by krlenjuska » Aug 20 2019 11:34am

Thanks for your answer. I will try to read IC number.

@moderator no im not sure how this happened. i just uploaded pics and tried to add them to post like i do to any other forum.

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