EDN

Dual Output 20 W Power Supply Reference Design

This reference design report describes a dual output, 20 W power supply employing InnoSwitch™-EP INN2605K. The design operates in an input voltage ranging from 85 VAC to 264 VAC and delivers an output ...
EDN

Dual Output Industrial Power Supply

This reference design describes a 10 W dual output power supply. It has a built in synchronous rectification for >85% efficiency at nominal AC input and an accurate thermal protection with hysteretic ...
Ars Technica

AC-DC transformer, but with multiple output voltages simultaneously.

Maybe I'm describing a unicorn device here but I have a bunch of devices that run off DC-in of various voltages, and take a barrel jack connector for power. They all have their own wall warts but I've ...