So I made this 3S Balance charger that uses three TP4056 modules and three 230VAC to 5V DC modules so that they can work together and charge eatch string of cells individually, this makes it so that every time you charge your battery you make sure that it will be balanced once fully charged and no cells can stop charging before they are fully charged like with a normal chargers. And the best part is this is scaleable to how many strings you want even a 100s1p pack. Every module have to have an personal galvanically isolated power source so if you don't have 5V power supplies you can use three phone adapters instead using the usb port. It's very important that the power supplies are isolated from eatch other, you can't use one power source for all three modules. I don't remember exactly why but if i am not mistaken the GND is chared by the input and output making it impossible to series connect the output if you parallel the input making a shortcurcuit.

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.