I have a couple of RPM’s 4ch AC DMX SSRs. They are a great concept for when you need a small channel count in a remote part of your display.
I predominantly use LEDs for displays. This means DC is king. So recently I set out to build a simple DC controller that would need to be small and have reasonable switching capabilities.
I cam up with this list of requirements
- Smaller is better
- Minimum of 2 Amps per channel
- Input supply voltage to be a minimum of 36Vdc, 48Vdc if possible
- Standard Diag lights
- Surface mount components
A couple of weeks ago, Rockby Electronics‘ weekend sale listed some small bulkhead plastic cases for 75 cents each. That was a steal! I bought 80!
The following story details the approach I took to create what will be the end result, starting with the initial PCB Design.
To make assembly easier, I had the PCB made in panels of 6.
So how does it Perform?