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Registered Member #1334
Joined: Tue Feb 19 2008, 04:37PM
Location: Nr. London, UK
Posts: 615
GhostNull wrote ...
Some pictures from around Canberra I took on my 2mp pinhole mobile phone camera (how do I rotate the pictures with BB) ...
I lived in Canberra when I was little (my father had a sabbatical at ANU) - all I can remember is REALLY BIG RATS and very nasty spiders... oh, and it snowed once, but it melted before it hit the ground. Had a kookaburra in the garden which made a hell of a racket...
Registered Member #1643
Joined: Mon Aug 18 2008, 06:10PM
Location:
Posts: 1039
Got some toys... Big giant heatsink (11 x 7 x 2.3) ($15 on ebay) 800V 300A STUD diode ($22 on ebay) 1200V 650A SCRs (2 for $20 on ebay)
Wonder what I'll make. A hint, the SCR and STUD diode goes together, the heatsink is off to the site, for a future DRSSTC. Right now I'll stick a 3" peltier on it =D
Registered Member #2628
Joined: Fri Jan 15 2010, 12:23AM
Location:
Posts: 627
well, it works rather well with these "skinny" bricks, best part is, on what im running these things at, the baseplate alone seems more then enough to dissapate all if any heat made by the devices, so they run rather cold, though this is probably a dumb idea for any repetative high powered application.
yeah, the copper busses and brass bolts are overkill, but I had these pieces on hand, might as well use em.
Registered Member #540
Joined: Mon Feb 19 2007, 07:49PM
Location: MIT
Posts: 969
Gatedbreakdown wrote ...
well, it works rather well with these "skinny" bricks, best part is, on what im running these things at, the baseplate alone seems more then enough to dissapate all if any heat made by the devices, so they run rather cold, though this is probably a dumb idea for any repetative high powered application.
yeah, the copper busses and brass bolts are overkill, but I had these pieces on hand, might as well use em.
I wouldn't rely on the insulation between the die and the heat sink (if there is any at all). Otherwise, you would be shorting out your caps. If the insulation breaks down, I'm pretty sure the SCRs wouldn't be too happy.
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