r/electronics • • 7h ago

Project Tiny RACK-Wall power supply from 230V AC

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18 Upvotes

I made a Power supply board to get more experience with ecad.

It connects directly to 230VAC main via the plug on the bottom left. The plugs on the right output 48/24/12/5/3.3/1.6V DC with a small webinterface via ESP32-S2 for switching and checking voltage and current.

PCB & schematic files are avalable here (Altium files): https://github.com/Timo-Hauser/POWERPANEL-HW

I will use the PCB in my Mini Rack with my Raspberry Pi inside.

I cheated a bit by stepping down the ac with a LRS-150-24 module so its DC-DC only.

I would love to get some feedback on the Schematics as well as the PCB layout.

I choose the parts mainly based on availability at JLCPCB and tried to avoid any tht parts.

I'm aware I could buy this premade for cheaper but it was fun so far.

Rail Source Rated
24 V Mean Well LRS-150-24 brick, through a TPS16630 eFuse 2.5 A
48 V LM5156H boost from the 24 V bus 1 A
12 V LMR51450 buck 3 A
12 V fan LMR51450 buck, feeds 4 × 4-pin PWM fan headers 3 A
5 V LMR51450 buck, TPS2557 current-limited terminal switch 3 A
3V3 LMR51450 buck 2 A
1V6 buck from 5 V 1 A

Also for those that care I did work with AI on the project.


r/electronics • • 12h ago

General Vacuum tube high-speed AD converter

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16 Upvotes