🚀 go-pugleaf

FunkyPunk FieldEffectTrollsistor wrote:

> Eeyore <rabbitsfriendsandrelations@hotmail.com> wrote:
> >Sylvia Else wrote:
> >
> >> I've recently bought a D-Link DIR-300 wireless router. While
> >> disconnecting its power supply from it, I got a tingling sensation when
> >> I touched the plug (to be clear, I'm talking about the 5V DC plug, not
> >> the mains plug).
> >>
> >> An AVO meter shows about 90V AC to earth from either side of the 5V
> >> plug. Short circuit current to earth is about 0.1mA.
> >
> >Sounds typical.
> >
> >> Still, I thought these things were meant to be completely isolated. Has
> >> there been a change of approach?
> >
> >Perfectly allowable under IEC60065.
> >
> >I bet I even know which component's causing it.
> >
> >Graham
>
>  Since you cannot know exactly what type of dongle circuit is being used
> (especially from that dumb twit's description), you cannot possibly know
> what component you "think" is causing the problem you "think" exists.

Dongle ? What dongle ?

A small wireless router is 99.999% likely to have a simple flyback SMPS and I
know EXACTLY which component is going to be doing it and could even tell you
where you'll find it on the PCB. I'll even hazard a guess its value is 2n2 (
type Y2 ).

Most likely like this with lots of safety and approvals marks on it.
http://uk.farnell.com/murata/de2e3kh222ma3b/capacitor-x12-2-2nf/dp/9527036?_requestid=98989

Stop exposing your arrogant ignorance.

Graham