Some of the Chinese knockoff inverter type generators do have a modified square wave inverter, but most actually have sine wave inverters.
Any constant speed rotating alternator (a.k.a., synchronous) type of generator - like yours, and mine - will put out sine wave.
So the wave form isn't an issue.
The frequency stabilization - a governor to keep the engine at an rpm of a multiple of 60 to get 60hz, usually 3600 rpm but some bigger ones...Onan I think...run at 1800 - isn't all that critical actually.
North America runs at 60hz, but the rest of the world runs at 50hz. And the North American power grid big shots have been tossing around the idea of taking the North American grid down to 50hz as well.
(Personally, I wish they would. As an electrician, I'd much rather have the 230v/50hz that the rest of the world has. But even if they lower the freq here in N.A., they'll almost certainly stick to 120v mains because upgrading the whole continent would be a real PITA. But it needs to be done, and they really SHOULD do it.)
About the only thing that is sensitive to freq is digital clock circuits - like the timer in a microwave. And they'll still work fine...they'll just be off a bit.
A laptop power brick won't care at all about the freq as long as the voltage is in the ballpark.
If you take a laptop to Europe or Down Under and use a 230v -> 115v travel adapter...well, you'll have 115v, but still at 50hz...the travel adapter (step down transformer) can't do anything about the frequency. Works just fine though.
Last edited by dwh; 07-20-2012 at 02:32 PM.
Current: 76 E-250, bubble-top, self-contained|couple of old Yamaha enduros
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