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Ac invertor for car? Answered

anyone know how to build a ac power inverter that plugs into a cigarette lighter in a car so you can use it to run laptops,dvd players,etc?

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orksecurity

9 years ago

If you have to ask, I'd suggest buying one. They're fairly cheap.

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darkangel1966orksecurity

Answer 9 years ago

That doesn't really help me ork,i got tons of electronic parts around the house and if i go out and buy more my girlfriend will kill me.I know i have enough parts to do it and i'm pretty handy with a soldering iron,no i don't have any professional training but i repair motherboards and lcd's and the like on a regular basis (oh and laptops to like the one i'm on now.Just need someone to point me in the right direction and thats what this place is all about right!

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orksecuritydarkangel1966

Answer 9 years ago

OK, if you just want pointing in the right direction: Basically it's a 60-Hz oscillator driving a heavy output transistor which can drive lots of current into a transformer which increases the voltage to the needed range (while proportionaltely decreasing the current, of course). If you're interested in powering laptops or other electronics which can take lower voltage input (my laptop's charger nominally puts out 20V at 4.5A), you may be able to run much more efficiently by using 12V directly from the car, or 12V regulated down to a lower voltage, or 12V run through a "DC-to-DC converter" to step it up to the needed level (google that phrase and you should find circuit diagrams; I haven't checked but I wouldn't be surprised if there was one here on Instructables).