I am trying to rectify 24 VAC to 12 VDC without a step down transformer.
- I used one of my PCB's as an experiment. The circuit works but the 12 V regulator heatsink gets way too hot.
- I am also worried about loading the source PS as the unit I am working on are connected in parallel, otherwise I would do something like this http://www.brighthubengineering.com...9-make-a-transformerless-power-supply/#imgn_2
- I have searched all over for a SMPS that operates at 24 VAC input, I have not found a off the shelf option yet.
- I don't have the time or the skill to design a SMPS.
- The unit I am driving draws only 0.080 A at 12 VDC.
- I am thinking of using an isolation transformer designed for the audio industry since they are cheap.