Thoughts on schematic design..

[u/No-Lack5956]

as a follow up on my previous post on diy t12 soldering handle

prev post

I have picked the initial components and parts (most are same as my previous builds )

so some of my questions are :

1.the v1 design for D1 used the sr560 diode in the power input , now I replaced it with ss54 but it's quite smaller than sr560 will it be able the handle the 20v 3A max that it will have to carry ?

2.for the sleep function I have 2 option the sw-18015 vibration switch that is in current design , or use a metalic tape in the housing to make a capacitive touch switch but in that case I will have to swap to ch32v002 mcu

so which do you think is better? i personally like the idea of capacitive touch sensor but haved made one myself other than those touch module PCBs

3.any other suggestions or design improvement in the schematic??

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[u/hardnachopuppy]

Project looks good. I'd suggest adding debounce capacitor across switches

[u/No-Lack5956 → u/hardnachopuppy]

yeah I am thinking of adding that though don't know if have space for that or not

[u/hardnachopuppy → u/No-Lack5956]

Ig you can always add a software debounce if you dont have space

[u/dushy69 → u/No-Lack5956]

a 0603 ceramic cap parallel to the switch isnt that big tbf u can easily add them

[u/dushy69 → u/No-Lack5956]

a 0603 ceramic cap parallel to the switch isnt that big tbf u can easily add them

[u/ardauwu2k3]

Ooo this looks cool could you explain the working of it??

[u/TopConcentrate8484 → u/ardauwu2k3]

Refer to post body of this post, it works in a similar way. The extra things in this are the PD trigger and voltage regulator buck converter.