2 layers60 × 80 mm

KiCad boards from 3 GitHub repositories tagged “ac-dc”, the most starred first; open any of them in PCBKit.


ashfaque-ur-rahman/Amateur-AC-DC-Bridge-Rectifier-PCB
Basic AC to DC converter using bridge rectifier and capacitor filter — KiCad PCB design

tb8-5/12VAC-Dual-Output-Buck-Power-Supply-PCB
Custom 2-layer KiCad PCB converting 12VAC to regulated 5V and 3.3V outputs using full-wave rectification and synchronous buck converters.