I have VAIO E series (SVE) laptop. While charger plugged in, touching VGA/HDMI/USB port metal casing gives me burning sensation. So, I checked it with voltmeter and I found that while plugged in there ...
I wanted to buy a UPS for my PC. I was going over some and I came across a variety of sine waves that different UPSes generate; Stepped Sine Wave Modified Sine Wave Simulated Sine Wave I know ...