Comment on Thinkpad for the win
owl@infosec.pub 3 weeks agoBut why would it? Is the output not voltage controlled?
Use an inverter-controlled one and you’ll be fine. Our emergency communications shelter runs off one of those just fine, with a cheap offline UPS in there.
Yes, those that control frequency using the engine rpm aren’t that great for most switching power supplies.
Oh shit, you just made me realize when I get my first pay check I should really invest in a decent UPS. I had to sell my old one before moving state lines to condense space.
nova_ad_vitum@lemmy.ca 3 weeks ago
I’m guessing the cheaper ones don’t have sine-wave inverters (they use a dressed up square wave which can be produced by purely digital electronics) so quality of the output waveform is bad. The power supply of the laptop (or PC) ends up having to work harder to cut out the extraneous bits of the waveform (that is it’s job) but all that extra crap is just turned into heat. Laptop PSUs are small , so have less heat dissipation and likely aren’t built for this.
If it’s a sine-wave inverters and the generator is working properly then idk why it would matter.
owl@infosec.pub 2 weeks ago
That sounds like a really good explanation, thank you