Jump to content

Any methods to increase # of lights per channel with DIY Renard SS24

Recommended Posts

I am having trouble getting on the DIYC board to post, so I thought I may also find some help here.

I am wondering if there is any way to increase the number of lights I can put on each channel of the Renard SS24 boards without overloading it and blowing the triacs. I plan to have a lot of C9 bulbs on the house for my 2011 display and wanted to try to save as many channels as I can. Otherwise I would have to use up several channels and just program them all to do the same sequences to distribute the load.

Link to post
Share on other sites

I have a couple of "stock" units and since I use minis, usually only one string per channel, I won't have this issue. But.....

I read someplace that the board designer said 2 amps per channel, as it's limited by trace size on the board. That said, you might be able to increase it by adding thickness to the trace. I don't know how much current carrying capability a layer of solder would add, but you may be able to lay some copper wire into that solder as well.

Check the manufacturer ratings on the triacs; I think it's somewhere around 5 or 6 amps, but don't hold me to that. You can supplement the stock heat sink with additional metal fins, as it's usually the heat build-up that kills those things.

I'm also not sure about the screw terminal current ratings. I think you can safely double the per-channel current to about 4 amps without supplementing those, but again, don't hold me to that.

I don't think of the Renard SS24 as a high current board, just a high density board. You might want to look at some of the other boards to get higher current.

Link to post
Share on other sites

Couldn't you use the controller to drive higher capacity triacs off-board?


That would work as well, but it'd mean an external device. That's all dependent on the application.

In a "show and tell" session, one of the guys at Christmas Carolina showed off one of these devices, rated for 40 amps per channel. Only two devices in a large NEMA rated metal box; the box was part of the heat sink.

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...