Interesting Engineering on MSN

World’s largest smart transformer to deliver 36 billion kWh of energy a year

To prevent similar situations in the future, Chinese engineers have now developed a 750-megavolt-ampere (MVA) smart DC ...
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 ...