Electronics > Beginners
sourcing small power transformers
brybot:
No need to source anything anymore. I was mistaking the line filter for a tiny transformer which I was unable to find. Problem solved!
Richard Crowley:
If you just want to add dimming to your existing LED illumination setup, you could simply use something like the standalone LED dimmer boxes like:
http://www.mpja.com/LED-Strip-Dimmer-12-24VDC/productinfo/32760+MI
https://www.allelectronics.com/item/dmr-8/12-24-vdc-8a-dimmer-for-led-strips/1.html
They appear to be the same generic Chinese product. Although MPJA is selling at a much more sensible price (IMHO).
They will operate on 12V just fine. The "24V" rating is simply the maximum voltage.
brybot:
Thanks for the tip. Unfortunately, these LEDs are running at 75V. I'll probably just change the feedback resistor in the existing circuit to set the current. The datasheet I posted is not quite the same part. The one I have doesn't support triac dimming.
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