What items are present on the power supply? Eight surface mount IC chips, 12-13 of them, are soldered in a row.
What items are present on the power supply? Eight surface mount IC chips, 12-13 of them, are soldered in a row.
What are the black 8 pin IC chips soldered in a series, with 12-13 of them? Are they surface mount mosfets? I need to cool them with a heat sink. I was thinking of using thermal glue to attach the heat sink, but I'm worried it might damage them. Would you mind circling them for me? I don't have a way to edit the image. Can I use thermal glue on those chips without risking damage?
They resemble MOSFETs, but the reason for cooling them remains unclear. They could be involved<|pad|>'s protection circuitry, though that’s just speculation. Designers often add heatsinks when needed. The MOSFETs are likely rated for up to 125 °C. Check the chip for the rating and refer to the data sheet. You can attach heatsinks directly to the components.
https://www.masterbond.com/industries/he...attachment
Ensure the adhesive isn<|pad|>, and be aware it might affect warranty if removed.
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.
No. From your description, the MOSFETS
do
need cooling. I was merely going by your (generic?) photo which didn't show any pads. If there are thermal pads on top of the MOSFETS, they definitely need cooling.
If the pads are sandwiched between the MOSFETS and the case, it's actibng as a large heatsink, similar the metal plate on tne back of some GPUs, if there are pads on additional memory chips.
If that board is part of an ATX PSU, the case is designed to protect you from 120/230V AC mains plus 340V DC (rectified mains) on the bulk cap. Yhese voltages are above the S.E.L.V. limit and considered lethal.
The usual caveats apply. Don't mess with exposed high voltages if you're not an electronics engineer with a good understanding of power circuitry, which by the sounds of your questions, you're not. Do not ask questions on this forum that entail removing the cover on a mains PSU. You'll get pretty short shrift.
Car audio operates from a +12V DC supply, but your photo implies a main powered unit. Please send more info about the power supply, including manufacturer and model number. Better stil a phot of the whole unit.
Most ATX PSUs have a fan. Smaller open frame industrial PSUs are often fan-less. I've no idea what you've got in front of you.
Thank you for your response.
Here is the link to the power supply: https://hdplex.com/hdplex-500w-hi-fi-dc-...input.html
It is a HDPLEX 500W HIFI DC-ATX Power supply. All the capacitors on the board are 16V470UF and 63V22UF.
I’m unsure how to upload photos directly from my computer to this site, otherwise I’d be sorry about that.
The input voltage ranges from 12 to 48 volts, and I don’t think it goes beyond 300V. The shielding indicates high voltage or heat, so I’ll be cautious.
I can’t turn it on right now because I don’t have my input voltage power supply for it.
True sir. I intended to explain the steps thoroughly, but it seems you're correct. What's the issue with the URL? We don't have servers to host it, do we?