Thread 2954653

Just got these two 63cc 800w generators for 20 euros. They both run well and deliver their rated power but the problem is that they only generate dirty power, only good for lights and basic power tools like drills.
How do I get clean power from them so I can plug in my fridge and charge electronics without frying them during a power outage?

>>2954653 (OP)
>How do I get clean power from them
in theory:
rectify to dc with smoothing caps
connect pwm sinewave ac inverter to dc bus
in reality: just buy a better generator for less money and assache

>>2954653 (OP)
those look suspiciously like the tailgator generators from harbor freight, if that's the case then they output pretty clean power as tested by this guy
https://youtu.be/ehkIA38Zm2s?si=5AtG3DTnyqp9laCP
if you're really schizo about it then get a pure sinewave inverter, plug it into the generator and then plug your electronics into your inverter

>>2954660
I assume that power is going to be pretty clean because it might be generated directly by the coils in the dynamo.

If not, you could rectify it, put some capacitors on it to smooth it out, then re-AC-ify it with with a pure-sine generator. To step it down to, say, 12 volts you could use a big car charger transformer or perhaps one from an old welder.

After you clean 20 years of caked on rat droppings off the top, maybe take a picture of what the AC generator system looks like.

>>2954653 (OP)
>nupower generator
lmao, fits the product very well
anon you should just clean those very well and try to sell them for a profit
those small 2 stroke engines will always run at max rpm and go through the entire fuel tank in just a couple of hours, which is a big no no in case of an emergency and only makes them good for small jobs on the field
what i would do if i were you is buy a big engine generator. it'll run at idle most of the time, potentially drinking 1/4 of the fuel while providing 3-4x the power of the small guy

>>2954653 (OP)
Just buy a couple large power stations/battery things jackery whatever's
Charge the batteries with the generators, run everything off the batteries

I live in a 240 volt country and have seen those blow up smps filter capacitors. What I did to run my laptop charger off them was run it through a step down transformer to 180 volts or so which is ok seeing the charger can run from about 90 to 260 volts.

>>2954677
>2 stroke engines will always run at max rpm and go through the entire fuel tank in just a couple of hours

These generators don't. They have governors and you can expect 6+ hours out of a tank on low loads. That said its good to give them a thrash at times on high loads to clear the oil out of the exhaust.

>>2954653 (OP)
I wonder if you can tinker with the governor to squeeze 1200w from those

>>2954653 (OP)
You're fine just like that.
Those so called "sensitive" electronics will tolerate all but the dirtiest AC from the stinkiest shithole in Africa. By "dirtiest", I mean spikes exceeding the allowable P-P voltages, frequency drifts like 45-65hz or absolutely retarded harmonic distortion levels.

>>2954653 (OP)
>How do I get clean power from them so I can plug in my fridge and charge electronics without frying them during a power outage?
buy a pure sinewave inverter generator.

those things are shit. their voltage output is often too high 140v. you can adjust it, but then the frequency will drop.