Steppe Wolfe Posted September 17, 2007 Share Posted September 17, 2007 I noticed that the boards don't have the heatsinks that the AC ones have. Will they need them?TIACW Link to comment Share on other sites More sharing options...
LightORamaDan Posted September 18, 2007 Share Posted September 18, 2007 It will depend on the load placed on the card. We will be be stocking small heatsinks for those that need them. If you want to run tham at full capacity then you will need to add more sink to them. Link to comment Share on other sites More sharing options...
Steppe Wolfe Posted September 27, 2007 Author Share Posted September 27, 2007 What is the bank and per channel ratings of the board without the optional heatsink package? Link to comment Share on other sites More sharing options...
LightORamaJohn Posted September 29, 2007 Share Posted September 29, 2007 Steppe Wolfe wrote: What is the bank and per channel ratings of the board without the optional heatsink package?Here is a link to the manual, answer is a little complicated.http://www.lightorama.com/Documents/CMB16D_Man_Web.pdf Link to comment Share on other sites More sharing options...
jasone45 Posted October 23, 2008 Share Posted October 23, 2008 I don't see the heatsinks for the DC board on the website. How do I order them? Link to comment Share on other sites More sharing options...
Ponddude Posted October 23, 2008 Share Posted October 23, 2008 What do you plan on running on the board? Link to comment Share on other sites More sharing options...
jasone45 Posted October 23, 2008 Share Posted October 23, 2008 It's a secret! I'll show you if it works. But it will be pushing the upper power limits. Probably around 5 Amps per channel. I realize that doesn't allow me to turn on all 16 at once. Link to comment Share on other sites More sharing options...
Ponddude Posted October 23, 2008 Share Posted October 23, 2008 Then you need heat sinks. Currently they aren't available in the store, but you could probably fabricate them yourself. Link to comment Share on other sites More sharing options...
LightORamaJohn Posted October 23, 2008 Share Posted October 23, 2008 Ponddude wrote: Then you need heat sinks. Currently they aren't available in the store, but you could probably fabricate them yourself.He is correct, even if you have one of the newer boards that can handle 4 amps/channel w/o heat sinks. We switched to metal tab transistors because this upped the current from 1.5 to 4 amps/channel w/o heat sinks. This works for the overwhelming majority of users so we do not produce heat sinks.Be aware that the metal tabs on the new transistors are electrically hot and you must use insulating kits when you attach the transistors to a heat sink.Because of the way MOSFETs work and the way board is designed, you can gang two or more channels and make sure that you always give the same commands to the ganged channels when running your sequences. If you give different commands to two (or more) ganged channels, you will cause excessive current flow through some MOSFETs because the load will not be evenly spread. If you have more channels than you need, this is probably your best solution. Link to comment Share on other sites More sharing options...
Ponddude Posted October 23, 2008 Share Posted October 23, 2008 LightORamaJohn wrote:He is correct, See...I'm not just another pretty face after all...LOL Link to comment Share on other sites More sharing options...
jasone45 Posted October 23, 2008 Share Posted October 23, 2008 Only a mother beagle could love it! :-)Thanks for your help. I guess I'm up to bending some aluminum. Link to comment Share on other sites More sharing options...
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