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Sharp Announces Sales of DC Powered Air Conditioner, Other Products To Follow
AmiMoJo writes: Sharp has announced that sales of DC powered air conditioners will begin by the end of the year. Most appliances use the standard AC electricity supply in homes, but as solar panels become more common switching to DC can save on conversion losses. Solar panels produce DC, which is then typically converted to AC before being fed into the house's wiring, and then converted back to DC again by appliances. Sharp has announced that it intends to produce a range of DC powered appliances for home use.
That's it exactly. Back then things like frequency conversion and DC level switching had to be done mechanically. To change frequency you ran a motor that drove a gear that drove a generator at the new frequency, and did something similar for switching DC voltage levels.
Nowadays high voltage DC is used widely for transmission. Everything is solid state and highly efficient.
const int one = 65536; (Silvermoon, Texture.cs)
SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC