You may like ASRock outs new 400 Hz 1440p gaming monitor and we're hopeful ... but these latest additions are surely a sign that refresh rates might shimmy up across the board.

The novelty in question is its 400 Hz refresh. If you're thinking that we've seen 480 Hz before, even 500 Hz and 600 Hz-plus, you're right. But not specifically 400 Hz from an IPS panel.

What led to the 400-Hz generator as the answer for aviation power? Challenges with EMI filters. Topology for a 5-kW power supply targeting aircraft applications. Modern aircraft electrical systems ...

In a number of cases, an inexpensive source of 115-V, 400-Hz power with low distortion is needed for bench tests or mobile applications. This circuit, which uses the Apex Microtechnology PA25 dual ...

With the advent of systems at frequencies above 60 Hz, we've seen increased interest in the rating of cables in these applications. Mainframe computer systems, running at 400 Hz, certainly come to ...