I am building a wall unit and I would like to use some LED Tape Light (12VDC, 48ft Total 1.45W/Foot) to light the shelves. Then I'd like to use a 12VAC adjustable LED spot light (5W) for the center area. I'd like to have all lights able to be dimmed by using either an ELV or standard in-wall dimmer.
I think I can basically use the 12VAC electronic transformer and then use a full wave bridge rectifier (and maybe some caps?) to turn the 12VAC into 12VDC for the LED Tape lights. Is this correct? The 12VAC will be output at 20kHZ. Will frequency play any issue here? I can use a standard magnetic transformer as well if that makes things easier.
Any suggested schematics or part numbers would be helpful. The total DC load will be ~75W with AC load will be ~5W.
Here is the transformer I'm considering using.
WAC Lighting: EN-12100-RB-AR http://www.waclighting.com/data/TOOLS_SPEC/en-1260-rb-ar.pdf