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Registered Member #618
Joined: Sat Mar 31 2007, 04:15AM
Location: Us-Great Lakes
Posts: 628
I am at a slight delema with an H-bridge circuit, I wanna use a AMd factory AM2 heatsink and mounting bracket for a H-bridge system. Now sure most of you would say sure this could easily be done with multiple heatsinks, or you might say I don't see an issue here. Well, the thing is, is that the H-bridge Is for a DRSSTc that is going to run at 24-170v DC, I also would like to keep it looking uniform, problem is I can't seem to find any more Identical heatsinks to the one I have, short of buying new Mother boards and AMD cpu's just to get the heatsink and mounting hardware. Also the circuit boards I want to use are roughly the exact dimensions as the AMD Heatsink. Also I understand that most people are starting to move towards the 1 heatsink per IGBT and presure mounted rather then being mounted with a screw principle. The question I ask is could all 4 IGBTs use the same heatsink for heat dissapation or do I need to find a slightly different aproach?
Registered Member #89
Joined: Thu Feb 09 2006, 02:40PM
Location: Zadar, Croatia
Posts: 3145
Well, it all depends on power level of your coil. DRSSTC's can produce rather large sparks with just few hundred watts of input power, for which sil pads and single CPU heatsink may just be enough, and you could make everything very compact.
And still, how you mean you can't buy couple of identical heatsinks over there? They should be available in any PC shop. Very cheap too, they are <$10 a piece here!
Registered Member #618
Joined: Sat Mar 31 2007, 04:15AM
Location: Us-Great Lakes
Posts: 628
i tried Mwave.com, Newegg, tigerdirect, and ebay and non had the exact same package, plus the only reason I had all the mounting hardware for this heatink is cuz my pc has a performance heatsink installed with its own mounting hardware over the defeat hardware that came on the mobo. So to find the heatink and its appropriate hardware would require a bit of work.
Registered Member #89
Joined: Thu Feb 09 2006, 02:40PM
Location: Zadar, Croatia
Posts: 3145
What power level do you intend again? It may just not make sense to use more than one heatsink for a low power coil. You haven't stated anything about your coil, so how you expect us to know if one heatsink is going to be enough or not?
I'm absolutely sure you have a swarm of PC shops over there considering there is couple just in my town (in a relatively undeveloped country).
I mean, real stores, not the internet ones! Although most of them here have everything on their web sites too.
Ask them for cheapest heatsinks available. The CPU heatsinks are actually the only ones I can get at fair price here!
Alternatively, you could ask this guy
To cut it in four for you. No fans but should be rather cheap for you considering you're in US.
Registered Member #618
Joined: Sat Mar 31 2007, 04:15AM
Location: Us-Great Lakes
Posts: 628
Most of the info regarding the Coil is in this topic
The coil is based on Wards .5 DRSSTC ExceptI don't wanna go any higher then 170VDCin so no Voltage multiplier it would just be a bridge rectifier and some storage caps.
Power I'm looking for a max of 200W.
As for the PC shops theres 1 in town, then theres radio shack and walmart in the next town over and they only sell premade pcs from name brand companies.
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H-bridge heat sink question.
