What is the best method for remote control of a PSU just to control switching it on and off? I was looking at data sheets for relays DPDT but they all seem to require a holding current in the coil. Is there a relay that latches on for a single pulse and will stay latched until a second pulse is delivered? No coil holding current required from the battery operated control signal (see schematic).Or is there an alternative solution?
This is the schematic. The transformers load is a 1.5W LM317 regulator.
Thanks for any suggestions.