12V Auxiliary Power Outlet AC to DC Converter, 102 Watt Convert

1 to 2 Power Lead Cable Splitter, 2.1mm Male DC Plug to Dual Female

Buy Hi-Link Power Supply HLK-PM03 100V-240VAC / Botland - Robotic Shop

Programmable f/I - f/f converter - 5225A

HF500-15, Full-Featured Flyback Regulator with integrated 700V MOSFET, up to 15W

Battery electric vehicles: Progress, power electronic converters, strength (S), weakness (W), opportunity (O), and threats (T) - ScienceDirect

Reference Designs

What can you use to step down 240 volts AC to 12 volts DC without using a transformer? - Quora

Buy 12V Auxiliary Power Outlet AC to DC Converter 180 Watt Max Convert 100V-240V to 12V 15A Car Cigarette Lighter Socket AC/DC Power at Aliexpress for

12V Auxiliary Power Outlet AC to DC Converter 180 Watt Max Convert 100V-240V to 12V 15A Car Cigarette Lighter Socket AC/DC Power

200W Car Plug Converter With 4 Double Socket With Usb Ports And EU Plug For DC 12V To 220V AC Power Inverter From Skywhite, $16.6

Apple iPhone charger teardown: quality in a tiny expensive package