The product design is actually quite simple.
Instead of the present two-position, on/off rocker switch, a three-position switch can be used. These positions would be off/on/stand-by.
In off and stand-by, this design would draw zero quiescent power. I wouldn't even use an LED to indicate stand-by.
When the stand-by is externally triggered, the circuit would draw no more than 1W at 12V. That 1W would be used to power an electromechanical relay.
The stand-by circuit could be designed to trigger and de-trigger off 12V but then latch and unlatch the relay from 120VAC. This would unload the trigger circuit from the constant load. I'm not sure though if this would be beneficial.
Edit: Not sure there's even a need for the off position.
Last edited by Mojo; 09/03/22 04:04 PM.
