undefined | Better HN

0 points151551mo ago0 comments

There's zero chance that the DC ground in the laptop is tied to earth ground in the charger: they use LLC resonant converters and flyback converters (depending on vintage) - an earth ground tie would defeat the purpose of these isolated topologies.

0 comments

jahnu1mo ago

However it’s wired up the fact is the electric buzzing feeling goes away if you use a grounded extension cable instead of two pin.

namibj1mo ago

No they isolate L and N not PE.

j / k navigate · click thread line to collapse

0 comments

jahnu1mo ago

However it’s wired up the fact is the electric buzzing feeling goes away if you use a grounded extension cable instead of two pin.

namibj1mo ago

No they isolate L and N not PE.

j / k navigate · click thread line to collapse