Question What are these on the power supply? 8 pin surface mount ic chips soldered in a series there are 12-13 of them.

[reaper89971]

What are the black 8 pin ic chips soldered in a series there are 12-13 of them. Are they surface mount mosfets? I need to cool them using a heat sink. I was going to use thermal glue to put the heat sink on. Will that harm the chips? I would circle them for you but i don't have an option to edit the image.

CAN i USE THERMAL GLUE ON THOSE CHIPS OR WILL THAT BREAK THEM?

 

[reaper89971]

How do you upload an image directly from your computer onto this forum?

 

[Misgar]

Are they surface mount mosfets?

Yes they look like MOSFETS, although why you should need to cool them is a mystery. They might be part of the OCP (Over Current Protection) but that's purely a guess on my part.

Power supply designers usually attach heatsinks when necessary. The MOSFETS are probably rated up to 125 °C. Best way to find out is read the number off the chip and download the data sheet.

I was going to use thermal glue to put the heat sink on. Will that harm the chips?

Yes, you can glue heatsinks on to semiconductors.
https://www.masterbond.com/industries/heat-sink-attachment

Just make sure the glue isn't electrically conductive. If it's really tenacious, you might rip the top off the MOSFETS if you ever need to remove the heatsinks, e.g. for an RMA. Have you considered this might invalidate the warranty?

 

[reaper89971]

Yes they look like MOSFETS, although why you should need to cool them is a mystery. They might be part of the OCP (Over Current Protection) but that's purely a guess on my part.

Power supply designers usually attach heatsinks when necessary. The MOSFETS are probably rated up to 125 °C. Best way to find out is read the number off the chip and download the data sheet.



Yes, you can glue heatsinks on to semiconductors.
https://www.masterbond.com/industries/heat-sink-attachment

Just make sure the glue isn't electrically conductive. If it's really tenacious, you might rip the top off the MOSFETS if you ever need to remove the heatsinks, e.g. for an RMA. Have you considered this might invalidate the warranty?

Thank you for your reply
It has a 9 pound shield that goes over the entire board and there are heat pads over top of the Mosfets. So i assumed that they need cooling or get hot. I am not sure if the case is a cooler for the entire board or a just a big heavy duty shield. The power supply case looks like an amplifier case.

So you are saying that they don't need cooling, Interesting. Would anything on this board need cooling? It does not have a fan. It also has a thick metal plate that the board is mounted 2.

The circuit board is single sided there isn't any circuitry on the bottom of the board as far as i can tell.

So all together it weighed about 15 pounds with the shielding.

So you are saying this thing doesn't need any cooling?

That would be great but whats with the heavy duty shielding? I mean heavy shielding.

There has got to be some kind of reason to shield this device like that. Unless its for car audio or something.