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On/Off (No Dimming) DC DMX Controllers

Discussion in 'The Development Lab' started by David_AVD, Dec 31, 2011.

  1. David_AVD

    David_AVD Bite my shiny metal ass!

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    I was going to mention this in my other thread, but thought it warranted a separate one.

    In my 2011 display, I had a couple of DC channels that needed to be switched on and off with no dimming. I ended up using some spare channels on a DC24 and made sure I never dimmed them. They were driving some meteor tubes via step-down regulators and dimming them would have resulted in high current draw and possible damage.

    I can see that on/off would be good for some simple animated props with fans or motors, etc. Things that you want to control, but definitely not dim.

    So, is there a need for a DC controller with pure on/off switching? How many channels? Does it need multiple voltage banks to make connection to your oddball display items easier? Comments? Ideas?
     
  2. cenote

    cenote Suburbs of Philadelphia

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    Would love to see a board with higher current (bout 5-10amp per) but be able have multiple voltages for each channel. I been designing, mostly in my head, a way to control my low voltage lighting threw the yard, which uses AC volts multitap from 13-16v depending on runs. Any way of board not caring it it is AC/DC? Only need 8-12 channels
     
  3. OP
    OP
    David_AVD

    David_AVD Bite my shiny metal ass!

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    Not sure what you mean by "multiple voltages per channel" Chuck. If you mean each channel can have a different output voltage, maybe the other thread here is what you want?

    The only (easy) way you can have a channel not care if the voltage is AC or DC is to use relays, but switching them on and off rapidly will wear them out in a short time.

    I am looking at a (4 channel max) DMX controlled relay board for switching power supplies on and off each night. That thread is over here.
     
  4. JonB256

    JonB256 Full Time Elf

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    David, I used a custom dimming table on my dc board and my ac board. They were 100 on down to 60% then went to off. Nothing in between.

    Both were d-light boards using the new DMX firmware.

    Any board that allows dimming tables could do it. LSP does it in software I think.
     

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