Tingles from power supply

[Sylvia Else]

What Sylvia had is commonly called a 'wall wart'.
http://en.wikipedia.org/wiki/Wall_wart

Though in truth, I'd never heard the expression before I read it in this
group (in another thread). May be it's a US term. I note that the WIKI
says it's slang.

Could be my protected up-bringing, though. Perhaps Phil has something to
say on this subject, since he's in Aus' too.

Sylvia.

 

[Sylvia Else]

Their use of Vutrax also means their CAD files are totally incompatible with virtually everyone else in
the world but hey-ho ! As a result some products have ended up being drafted in no less than THREE
packages.

They should talk to Airbus about how that can lead to $billion delays in
a project. (A380 - incompatible versions of a CAD system lead to
significant wiring problems).

Sylvia.

 

[FunkyPunk FieldEffectTrollsistor]

Did you get picked on at school ?

You sad little man/thing.

Where do you want to meet here in socal, you retarded little pussified
bastard?

 

[Sylvia Else]

If the wart is 2-prong, turn it around in the socket. If it's 3-prong,
get an outlet tester.

I can't really see how that could be relevant. If the device's low
voltage side was completely isolated (which I've now learned it isn't),
then changing the mains pins around wouldn't make any difference.

Australia's power plugs cannot be reversed, even if they're only two
prong. The sockets look like these:

http://en.wikipedia.org/wiki/File:Wall_wart.jpg

Sylvia.

 

[[email protected]]

Sylvia's experience is 100% normal. I've even modelled it in the past which
is why I reckon the Y cap between the rectified pri and sec sides is 2n2.

I was myself at the time specifically interested in the value of the leakage
current and its waveform shape. It gives a great 'buzz' with lots of
harmonics in poorly grounded audio systems. The audio groups regularly get a
question why their laptop buzzes on the mains but not on battery power. About
once a month on average.

Cue EMC discussion ?

Graham

I reckon whomsoever allowed a capacitor/resistor/whatever to straddle
a magnetically isolated, electrical safety barrier, ought to be
marched out of their keep-the-public-safe-committee office and shot.

 

[FunkyPunk FieldEffectTrollsistor]

It is VERY usual for Y caps to be blue. Not invariable but I'd say
around 90%+ are so.

More absolute bullshit statistics.

The color of a ceramic cap has NOTHING to do with it's function. The
intended function of a ceramic cap in a circuit will NEVER dictate the
color of said cap.

Can you really be so retarded that you cannot see this fact?

And NO, there is no "nonetheless", asswipe.

Also a popular colour for polypropylene film caps.

Also total bullshit.

 

[MoiInAust]

I can't really see how that could be relevant. If the device's low voltage
side was completely isolated (which I've now learned it isn't), then
changing the mains pins around wouldn't make any difference.

Australia's power plugs cannot be reversed, even if they're only two
prong. The sockets look like these:

http://en.wikipedia.org/wiki/File:Wall_wart.jpg

True, Sylvia, but GPOs (general power outlets) are often wired wrongly, both
by do it yourself illegal wirers (encouraged by SC alas) *and* licenced
electricians (proves one of SC's arguments!)

 

[MoiInAust]

Though in truth, I'd never heard the expression before I read it in this
group (in another thread). May be it's a US term. I note that the WIKI
says it's slang.

Could be my protected up-bringing, though. Perhaps Phil has something to
say on this subject, since he's in Aus' too.

Yes, a very common US term.

 

[FunkyPunk FieldEffectTrollsistor]

Individuals respond differently. I'm quite tolerant of 'belts' myself.

Now shut up and go away.

Graham

Ceramic caps do NOT "belt" when 'charged' off of a random point in an AC
power line sine wave.

She is an idiot, as are you.

 

[FunkyPunk FieldEffectTrollsistor]

It is EXACTLY typical of a flyback low power wall wart that meets IEC60065
and IEC60950.

If you could be bothered to go to powerint.com you could even get an app note
showing a typical design and the parts that caused her experience.

Graham

You're an idiot.

 

[FunkyPunk FieldEffectTrollsistor]

Just how MORONIC are you ?

The WLAN hasn't got a dongle.

Graham

It has a dongle power supply, idiot.

The word 'dongle' hasn't been used for security devices since WE ALL
quit using them nearly five years ago or more.

You ain't real bright on modern computers either, retarded donkey.

 

[FunkyPunk FieldEffectTrollsistor]

"short-cummings".

You are even more retarded than the donkey retard, and shit like that
should get dopes like you filtered, not me for pointing out dopes like
you and the retarded donkey.

 

[FunkyPunk FieldEffectTrollsistor]

It's crazy what he comes up with.

On the subject of dongles, a client uses an old copy of a useless POS ( IMHO ) schematic and pcb software
from the UK called Vutrax. They even use it for mech drgs because you can ( it was designed as a sort of
all in one package ).

That requires a dongle and to their chagrin they found it didn't work with XP because of the way XP
controls access to the I/O. Their only resort was to keep a W98SE PC for the purpose.

Their use of Vutrax also means their CAD files are totally incompatible with virtually everyone else in
the world but hey-ho ! As a result some products have ended up being drafted in no less than THREE
packages. I've originated in Orcad for example. They complete the schematic design in Vutrax and the
sub-contractor who was doing layout used PADS !

Graham

All there are just as retarded as you are, if not more so.

 

[FunkyPunk FieldEffectTrollsistor]

They should talk to Airbus about how that can lead to $billion delays in
a project. (A380 - incompatible versions of a CAD system lead to
significant wiring problems).

Sylvia.

Actually, it was the fact that it was the French that were doing it
that led to significant problems. Even their 'big bird' sucks so bad
that it sucks at sucking. Nearly as bad as you do.

 

[Sylvia Else]

True, Sylvia, but GPOs (general power outlets) are often wired wrongly, both
by do it yourself illegal wirers (encouraged by SC alas) *and* licenced
electricians (proves one of SC's arguments!)

Yes, I remember an instance when I was working in an office in the UK. I
noticed that my electric kettle's neon light stayed on even when the
mains power point switch was off. Clearly the powerpoint was wired up
the wrong way round.

A supposedly qualified electrician showed up, and proceeded to try to
fix things without disconnecting the power. A shower of sparks and a
ruined screwdriver later, he conceded that it probably wasn't the best
approach.

The fact that the wiring was not colour coded was a clear indicator of
the source of the problem.

Sylvia.

 

[Sylvia Else]

More absolute bullshit statistics.

The color of a ceramic cap has NOTHING to do with it's function. The
intended function of a ceramic cap in a circuit will NEVER dictate the
color of said cap.

He hasn't said that it does.

Sylvia.

 

[FunkyPunk FieldEffectTrollsistor]

USUALLY BLUE

You're an idiot. I do have a true statement for you though...


The Donkey << ALWAYS RETARDED!

 

[F Murtz]

Though in truth, I'd never heard the expression before I read it in this
group (in another thread). May be it's a US term. I note that the WIKI
says it's slang.

Could be my protected up-bringing, though. Perhaps Phil has something to
say on this subject, since he's in Aus' too.

Sylvia.

At least it is a very apt descriptive term which only applies to those
plug packs whereas I have never heard any one in the world other than
one ng poster call them dongles

 

[FunkyPunk FieldEffectTrollsistor]

Bollocks. Do you want the damn clause ? I'm hardly inclined to bother looking it
up again for an idiot like you though.

Graham

Dumbass! Read it again. You didn't make yourself a liar about the
statement about the caps and the stored charge taken from the spec. You
made yourself a liar when you contradicted that statement previously.

 

[Eeyore]

You made yourself a liar when you stated that the amount of stored
charge has to be small.

You've twisted my words. I said it has to have a limit.

Since you're such an expert I'm sure YOU can quote that figure. Then I'll post a
section of the relevant norms to see if you have even the minutest clue.

I STRONGLY suspect you will be as usual 'always wrong'. I doubt you even have
copies of the norms.

Graham