6/12/2023 0 Comments Power converter ac to dc![]() Motors like the one in your fan can also run off AC because it isn't much trouble to design a motor that can work this way. You can take a slow-motion video of them and you'll see that they actually turn on and off as the current oscillates. Your TV is not one of the exceptions, because it converts to DC internally, same as your laptop does with an external adapter.įluorescent and incandescent lights can run off of AC directly basically because they're electrically simple (they can actually run off AC or DC without much modification) and they're designed to allow high voltages. Heating elements: same as for incandescant lamps ![]() Wheter that heat comes from AC or DC doesn't matter, so there's no reason to convert it. Incandescant lamps: they require heat to make the lamp glow. Motors: most (large) elektromotors run on AC, so they can use it straight away from the outlet. (I can think of only 3 for the moment, but there's probably more): The ones that need some kind of AC will generate their own, and not use the AC supplied to it from the outlet. When it comes in your home, it is pretty much always converted to DC before use, because almost all modern devices need DC. (Besides that: the electricity is also AC when it is generated, for most sources at least.) The main reason AC comes out of your outlet, is because it is very inefficiënt to transport DC over long distances (and especially low voltage DC). Which is funny, because I think the explanation should only be a few sentences long. I have a feeling that even though most of the explanations given here are mostly correct, they're not really answering what the OP asked. It's still a electronic device that internally runs on low voltage DC, but it's big enough that the power supply is internal. Some electronic devices are large enough that it makes sense to put the power supply inside. That alleviates the need to protect the user from high voltage at the device. In some cases, it makes sense to put this converter external to the device. Given that there is this converter between the line voltage and the actual internals of the device, manufacturers have a choice about where to put it. It also converts to DC, because the electronics need DC to operate. This means a extra power supply, which converts the high line voltage to the low voltage needed by the electronics. The cost of protecting the user from the higher voltage is offset by the more efficient use of the power and not having to convert it.ĭevices with electronics in them need low voltage to run the electronics. This is mostly due to the line voltage being "high" compared to what normal electronics needs, and what is safe.ĭevices that use significant power, like lights and fans, are built to run directly off the power line voltage.
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