Hi all,
Trying to trick a 12V, 20-60VA output, switch mode power supply (AKA electronic transformer)designed for halogen lamps, (ie. off the shelf from your local electrical supplier) to drive this regulator etc. Is there an L-R-C trick? Suggestions and direction is what I am after, specifics not that important but would be a help as well. Circuit controls lamp with rest of circuit consisting of sensor, driver and relay. Of course it would be easy just to use a "wall wart" but why use 2 transformers when one should suffice.
Front end - view in courier font ____ | | |---------------->|--o----o---o---|7812|----o----o---- +12V,(load | |----->|--| | | |____| | | 120mA) | | | | | | | o-- 12V~ --o 1000u = =0.1u | 0.1u = = 470u | | | | | | | | |-----|