This is my first question here, so I'm hoping for help.
I'd like to take a Momentary event and use it to turn on a device (LED, for starters to model the concept) for a minute (give or take) at a steady Current & then go off. I'll need to provide ~3v at ~.350 to ~1A (.350 most likely, 1A not-so-much) from a low-voltage DC Source.
Imagine walking up to your door, stepping on the mat (with a pressure switch under it), and having the porch light come on for a minute without using your hands and you'll get the concept. With a minimum component count and all (other than wiring) in as small a package as possible. EDIT: I'm trying to build a proof-of-concept prototype as described, but the end result will be human-wearable.
I've been playing with Monostable Multivibrator ideas ("one shot" being irresistible), but seem to have hit some saturation point in my soggy melon & can't get a steady current while ON.
There's more to this project, but this specific part is scrambling my brain & I fear I'm down a rabbit hole & need expert help digging back out.
Currents, voltages & time are approximations, but my primary concerns are NOT using a microcontroller or 555, holding the Output steady during the entire "unstable state", using no or minimum quiescent current during the "stable state" (not that a one-shot is the right answer!) and keeping the bounding box as small as possible as well as keeping the cost at a minimum.
No need for complexity, just a simple trigger-and-hold-for-a-minute latch. EDIT: I'd like to emphasize the need for brutal simplicity. And that a quick momentary bump would hold non-TTL current to the load for about a minute.
I hope some creative electronics genius reads this and can suggest some possible circuit(s) to try.
Thank you for reading, and more-so for answering with a simple circuit or a link to a page with one on it.