Metro-North’s train service in Connecticut is challenging because of a technological quirk of fate: ours is the only commuter railroad in the U.S. that operates on three modes of power… AC, DC and ...

A new class of high-power, three-phase AC-DC units with flexible outputs and industrial temp resilience aims to streamline ...

Batteries aren't one-size-fits-all, and neither is the way they're wired to your house. Here's what you should know about AC- and DC-coupling. When we think about solar panels and batteries, we don't ...

Power relays are specifically designed to handle either AC or DC. It’s important to know the fundamental differences between them before building them into a system. Introduction to AC and DC Power ...

Famously, Nikola Tesla won the War of the Currents in the early days of electrification because his AC system could use transformers to minimize losses for long distance circuits. That was well before ...