Can Anyone help on how can I make a generator make an output of 220v AC 50Hz or 12V DC 500mA. Please...Thanks?
388917
www.a729.piczo.com\nwww.murderousmaths.co.uk\nwww.bbc.co.uk/revision\nwww.bbc.co.uk/bitesize\nwww.yahoo.com
242556
Get a Small DC Motor with Two Wires, and an LED from Radio Shack, then, figure out a way to put a small fan blade on it, and put a small Electric Fan in front of it, blowing Air onto Your small Fan to turn the Motor to demonstrate how a Windmill could power a Generator, and produce Electricity.
1095215
The above answers about using a voltage regulator sound ok.  Just make sure to check out the regulator's data sheet so that it can safely regulate what DC voltage you are giving it (though with this 12V case you shouldn't have a problem).\n\nAlso, when a battery is rated at 12V, 30A the battery doesn't necessarily output 30A at all times; that is just a full load rating given for safety reasons (don't want to overload the battery).  The battery is a constant voltage source so you can certainly have a load that pulls much less than 30A.\n\nWidth of wire?  You shouldn't be too concerned with this at these low voltages.  Just use breadboard type wire (around 22 AWG I believe).\n\nAlso, one final comment from me... why use a car battery when you can use a more convenient source of DC voltage?  If you want something that can conveniently power your IC's try one of those nifty AC/DC plugs that charge cell phones and the like.  They are rated in various output voltages and can surely supply all the current your IC's will need.  Just cut off the DC plug end and strip the wire.  Boom, now you have DC voltage for your breadboard supply terminals or whatever.
1050051
Technically, you don't convert mA into VA in any AC circuit!  One is a measure of current flow, the other is a measure of power.\n\nNow if you want to figure out the power of the transformer, simply multiply the amperage by the voltage.\n\nP = 12V X 800mA = 12V X 0.8A = 9.6 VA or 9.6 watts.\n\nNow you can think of the power in terms of VARs (volt amp reactive), but those are typically used in where you have either a(an) inductive and/or capacitive load and use imaginary numbers to solve such problems.
79642
Those guys (arc welding power supplies) have high voltage inside, but they output low voltage at high current.\nTry old neon transformers, oil burner ignition transformers (but you need some high-voltage diodes for DC), a discarded TV set (but very dangerous, HV can be stored in various places when you open it). \nFor battery ops you might be able to gin something up with an ignition coil and some sort of primary current interrupter but you'll get pulses, not DC. If you're into DIY, you can rip the flyback transformer from a TV and follow the directions in the ref. Many more such projects if you google High Voltage Inverter". Good luck.
844881
if your dealing with simple power supplies that supply DC electronics is pretty simply to get them to run on 50Hz. the first pic is a 60Hz supply....\nhttp://aycu34.webshots.com/image/5353/2000360261420977563_rs.jpg\nall you need to do is add some more capacitance to prevent the ripple voltage from dropping...\nhttp://aycu26.webshots.com/image/4785/2000376600521609993_rs.jpg\n\nbut from the sounds of it, you are dealing with AC electronics. Im sorry I do not have an answer for that.
609875
first of all, 120/240 are standard voltages for AC power, not DC.  DC comes in all flavors.\n\nanyway: 2500 kilowatts DC?\n\nthat is 2.5 MEGAwatts.  \n\ni find this somehow hard to swallow.  when i worked at a particle accelerator there was ONE really big DC power supply that put out something like 1.5 megawatts.  it was the size of a small apartment, and required massive amounts of water cooling, was entirely custom built, and probably cost something on the order of a million dollars or more.\n\ni don't think there is any such thing as "usual" for a 2.5 megawatt power supply.  think about it - you're talking about nearly the power consumption of a small town.  anything liek that would have to be custom built.\n\n----\n\nok, having seen your additional details:\n\ni'm quite positive it's AC, not DC.  it also probably depends on what kind of generator it is.  to give you a rough estimate, here's an example of a 11.5MW turbodiesel generator on a cruise ship:\nhttp://www.ship-technology.com/projects/destiny/\nnote the output is at 6.6kV.  that would set the current at the output at around 1.8 amperes.  \n\nhere's some more information.  as you can see there is no real "usual".  \nhttp://www.ship-technology.com/contractors/electrical/abb2/\n\ncheers!
808544
Man did u luck out running into me, go to www.sciplus.com "American science and surplus", all sorts of abandon science projects, factory over runs, cancelled government orders, motors, solar cells, weird stuff in the science dept, it's a mad doctors dream come true, CHEAP TOO ! check it out, you'll find lots of "COOL" stuff, that has many uses ! I did a hydro-electric demonstration of power application, that was so small, I could do it in a lab sink, E-mail me if you want an "A", it's an easy experiment, inexpensive, looks very sophisticated, yet simply displays the hydro-electric properties of producing low cost, hydro-electric power, using no battery's or electric for assistance, just water, so it's completely SAFE ! works on displaying milli-amps of D.C. power, yet you are still producing (at a very low voltage) power.
443133
hi,\n\ntransformers you can buy for pretty cheap at any decent electronics or  hobby stores (radio shack sucks these days, but they probably still have them).  \n\nhowever you can make them really easily.  all you need is a hunk of steel or iron (some kind of rod-shaped thing would work, as would a donut-shaped loop).  take one wire and wind it around the piece of steel N times.  take another wire and wind it around a different part of the steel M times.  congratulations, you have just built a transformer that will step up/down voltages by a factor of M/N (or N/M, if you hook it up the other way.)\n\ncheers-
603104
I don't know what country you are from so I will answer for the UK ... Maplin Electronics have cheap (no soldering) wind power kits.\n\nIf you are from another country find a hobby electronics store and ask them about kits like this - they are very common items.\n\nGood luck
75746
You'll need to provide a little more information in order to have your question answered properly.  AC or DC? Input voltage?  Fixed or variable output voltage? If variable, over what range? If fixed, what is the desired output voltage?  Output current?  How critical is the load regulation?\n\nAs you can see, the answer to your simple question can be a bit complicated :)
546849
You cannot, as was stated earlier.  You need to get a motor rated for 240VAC. You do have the option of using a step-down transformer (or step-up as the case may be). Of course, transformers aren't cheap either, so I would definitely recommend getting an expert in to look at the problem and help you find a solution.
470053
An induction motor will not work as a generator because there is no way you can create the magnetic field. You need some sort of magnetic field to make a generator work.\n\nIn order to induce a voltage you need three things:\n1. A conductor capable of carrying current\n2. A magnetic field\n3. Relative motion between the two.\n\nA generator either 3 phase or single phase, will have a rotating field. Power to this field is supplied via brushes and slip rings. See if you can find an old alternator from a car to take apart. Alternators are really 3 phase AC generators. The DC for the car is created using a set of diodes that you will find inside of the alternator. The diodes are often encased in plastic.\n\nA drill motor or other motor that has a commutator (a group of coppers bars that run parallel to the shaft) can be modified to be a generator, however it will produce a DC output.\n\n(Added 5/3)\nYou are correct that a voltage will be induced, however it is being induced in a place where you can't get it. An induction motor uses a squirrel cage rotor. When connected properly, the rotating magnetic field of the stator induces a voltage in the rotor. This voltage creates a magnetic field that causes the motor to rotate. However, since there are no slip rings or other connection to the rotor, there is no way for you to draw off the power generated. \n\nTo make a long story short, an induction motor can not be used as a generator. It simply does not have what you need to work.
240172
You need to know more information.  How many Poles does the Generator have?  How many windings per pole?  Is it synchronous or a-synchronous?  What is the reduction ratio between the turbine and the generator?  Does the generator utilize an armature, brushes, or slip rings?  is the generator self exciting?  At what frequency will the output be?
749686
Have a look at my project.  Several links for pictures, wiring, charge controller, and so on.\nhttp://members.rennlist.org/warren/wind.html
824800
You can use an integrated circuit, like LTC6906 from Linear Technology which goes up to 1MHz at 2.25 - 5VDC supply,\nsee:  http://www.linear.com/pc/downloadDocument.do?navId=H0,C1,C1010,C1096,P9790,D6998\nAlternative: MAX5094A by Maxim,  see:  http://www.maxim-ic.com/quick_view2.cfm/qv_pk/5017\nI didn't have the time to check the output power, but if it's not enough, a simple emitter stage transistor will do.
145303
Basically, you just need two different types of metals to generate a current. I assume your using copper as your other metal type.\n\nIf you dont have any zinc wire, you could try using a galvanized (zinc coated) screw.\nOr if you want to use another metal all together, try Aluminum in the form of Aluminum foil.  An Iron nail or a chunk of lead would also work, but not as well.