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Post by catchacuda on Nov 20, 2017 1:09:55 GMT -5
I'll openly admit that I have a lot more learning to do in terms of things electric. I'll continue doing home work. Simply put, could a common 49cc stator put out 110v AC for household use? Or, I suppose, modify a stator's output to power a household item? I know generators are readily available for purchase, but hell, I like to tinker, and multipurpose tools are the best. I've been through a couple power outages... I can live without the gaming system, but if I could power something in an emergency, it would be fantastic. Our last outage, I was using an inverter hooked to my car and would alternate between the fridge and a couple small items. Any input is greatly appreciated, unless it's a link to a REAL generator  |
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Post by gsx600racer on Nov 20, 2017 3:24:22 GMT -5
A modified car alternator, yes. A scooter stator, no.
Not only are you making voltage, there is the frequency(hertz)of the voltage you have to control.
Although scooters stators make AC voltage, its at very low amperage.
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Post by benji on Nov 20, 2017 5:30:18 GMT -5
Yup that's true. If you want to mimic household current, I believe you have to be at 110v ac, 1300 Watts, 65 hz.
Interesting side note: a subwoofer (in an enclosure) meant for car audio that can handle 2000 Watts or greater can be plugged directly into the wall and will make a bass note at 65 hz. A smaller, normal automotive speaker that takes 15-50 watts or so goes "BBWBWBWBWAAPPP" and blows up when you plug it in. Please don't try at home haha.
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Post by catchacuda on Nov 20, 2017 10:43:42 GMT -5
Thanks for the replies. I was thinking perhaps use some scoot electronics to get 12v dc from the stator, and from there use a 12v - 110v ac inverter. At least a scoot engine or if this contraption was on a briggs ...it would use less fuel than my Toyota.
Maybe I'll just use an alt mated to a briggs and stratton. ~Seems~ simple enough.
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Post by tortoise2 on Nov 20, 2017 11:16:21 GMT -5
Maybe I'll just use an alt mated to a briggs and stratton. 139QMB variation . . US vendor unknown?  |
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Post by lostforawhile on Nov 20, 2017 11:35:39 GMT -5
these engines will run a small alternator, but the stator can't produce enough current to invert it in practical way
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Post by gsx600racer on Nov 20, 2017 16:53:30 GMT -5
Most preppers/diy-er's take a small mower engine, a self exciting car alternator, A couple pulleys and a belt, a small 12v battery & and a inverter to make a small portable 110v generator. You need the battery(acting as a capacitor), it's used for a buffer/power conditioner for the alternator for good somewhat clean 12v power for the inverter. theepicenter.com/emergency-power/homemade-generators.htmlPS, if you said you were using a inverter in your first post, I would of shared this earlier. |
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Post by FrankenMech on Nov 21, 2017 2:04:10 GMT -5
Yup that's true. If you want to mimic household current, I believe you have to be at 110v ac, 1300 Watts, 65 hz. Interesting side note: a subwoofer (in an enclosure) meant for car audio that can handle 2000 Watts or greater can be plugged directly into the wall and will make a bass note at 65 hz. A smaller, normal automotive speaker that takes 15-50 watts or so goes "BBWBWBWBWAAPPP" and blows up when you plug it in. Please don't try at home haha. That would be 60Hz in the US and a few other places. 50Hz in most of the rest of the world. Most 2000w 'rated' speakers will go "BBWBWBWBWAAPPP" when plugged into the mains. |
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Post by benji on Nov 21, 2017 10:13:29 GMT -5
Actually not, at least from what I've found. I'm a car audio installer, and a lot of subwoofers (with a proper enclosure and rated at 2000w) will definitely play plugged into the wall. I've actually seen a few 6.5" loudspeakers rated at 150w max take wall power. You would be surprised what these little motor structures will take.
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Post by lostforawhile on Nov 21, 2017 13:23:24 GMT -5
Actually not, at least from what I've found. I'm a car audio installer, and a lot of subwoofers (with a proper enclosure and rated at 2000w) will definitely play plugged into the wall. I've actually seen a few 6.5" loudspeakers rated at 150w max take wall power. You would be surprised what these little motor structures will take. it's just ohms law, if the resistance of the coil and the voltage allow a current the windings will handle it will play infinitely |
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Post by benji on Nov 21, 2017 17:38:42 GMT -5
Pretty much. Also, the motor structures are so simple it's hard to break em as long as you feed em clean signal. 95% at least of all blown subwoofers I swap out are due to distorted signal causing the voice coil to heat up and fail.
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Post by chopsuwe on Jan 1, 2018 15:49:58 GMT -5
It's possible but not practical. Scooter alternators can put out up to 35W for the headlight plus 35W or so for everything else. Once you take into account conversion losses you'd have 50W or less at mains voltage. It's just not capable of putting out more than that
However a 50cc engine is capable of producing up to 3000W which you could use of you attached a bigger alternator, say from a car or an old generator, to the wheel. If you're using a generator to produce mains directly, you would also need a governor to hold the revs constant to provide 50 or 60Hz under all load conditions.
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Post by scooterpimp on Jan 1, 2018 16:33:30 GMT -5
Get one of those cheap harbour freight 110 generators & bolt it to the luggage rack.lol.
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