Track_Shovel@slrpnk.net to Lemmy Shitpost@lemmy.worldEnglish · 27 天前Cordsslrpnk.netimagemessage-square212fedilinkarrow-up1959arrow-down18
arrow-up1951arrow-down1imageCordsslrpnk.netTrack_Shovel@slrpnk.net to Lemmy Shitpost@lemmy.worldEnglish · 27 天前message-square212fedilink
minus-squareJPAKx4@lemmy.blahaj.zonelinkfedilinkarrow-up2·26 天前Ah, so that’s why it’s half power compared to DC, makes sense.
minus-squarePher@lemmy.worldlinkfedilinkarrow-up2·26 天前Kinda, it’s half the power because the power goes like the temporal average of the current squared, the current oscillates like sine or cosine, and the temporal average of a sine or cosine squared is 1/2.
minus-squareulterno@lemmy.kde.sociallinkfedilinkEnglisharrow-up0·26 天前Unless the AC is a square wave, in which case stuff becomes different.
minus-squareDuamerthrax@lemmy.worldlinkfedilinkarrow-up2·26 天前 Not really. Where on earth would Mains be a square wave?
minus-squareulterno@lemmy.kde.sociallinkfedilinkEnglisharrow-up0·25 天前As far as the appliance cares, it is the only input power it gets at that time.
Ah, so that’s why it’s half power compared to DC, makes sense.
Kinda, it’s half the power because the power goes like the temporal average of the current squared, the current oscillates like sine or cosine, and the temporal average of a sine or cosine squared is 1/2.
Unless the AC is a square wave, in which case stuff becomes different.
Not really.
Where on earth would Mains be a square wave?
Low quality UPS Inverter
That’s not what Mains means.
As far as the appliance cares, it is the only input power it gets at that time.