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I'm trying to make a "hold-on-hold-off" type soft latch switch circuit, but I'm having a little trouble. I've found tons of "press-on-hold-off" types, but I haven't been able to find a single example of a "hold-on" type anywhere.

I found/have been experimenting with this example "press-on-hold-off" circuit, and have a working model in Falstad circuit simulator:

falstad sim

I was wondering if there was a simple way to modify it to work as a hold-on type. I thought maybe another capacitor could be added at the switch to act as a "debounce", making it take longer to turn on, but that hasn't worked in the simulator, so I'm not sure if I'm just misunderstanding how the circuit works, or if my idea is just wrong.

Any thoughts or wisdom would be appreciated.

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  • \$\begingroup\$ Is using a microcontroller out of the question? \$\endgroup\$
    – vir
    Oct 15, 2023 at 3:21

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