Miniature transformer/stepdown-regulator

[Iman Habib]

I am very sorry for you loss. I lost my grandfather due to similar
circumstances so I am fully aware of the dangers. I promise that I will
be extra careful and have somebody more experienced double-check my
solution. Thank you for your concern.

Also thank you for the pointers about the timing issues. I think is it
best that I go to the library and borrow a book about switching-mode
power supply design and learn a bit more about it instead of being so
lazy and asking the kind folks at sci.electronics.design to help me
out. =)

//iman

 

[Iman Habib]

Phil does seem to have some kind of compulsion to be impolite.

I guess that every Usenet-group has an obligatory troll. But I must say
that this Phil character is a bit more annoying than most others that I
have come across. The only remedy is to simply ignore this kind of
behavior and not reply unless the individual has something sensible to
say. As they say: -"Don't feed the trolls"
Already he has reached my personal list of top annoying trolls on
Usenet:

1, Airy R. Bean @ uk.radio.amateur
2, Betov @ alt.lang.asm
3, Phil Allison @ sci.electronics.design

That's a solid third place! Not that "bad" for someone to achieve
on a single day. ;-P

Still, he's probably right to warn you about the dangers of
non-isolated mains-driven circuits.

On the more serious side of thing.... I am aware of the dangers and I
appreciate yours and Phil's ("maybe") concerns. I will be very
careful and not try to do anything stupid. Also I have teachers that
can help my out and check out my designs so I have a bit of safety that
way at least.


//iman

 

[Phil Allison]

"Iman Habib"

On the more serious side of thing.... I am aware of the dangers and I
appreciate yours and Phil's ("maybe") concerns. I will be very
careful and not try to do anything stupid. Also I have teachers that
can help my out and check out my designs so I have a bit of safety that
way at least.

** So it this YOUR project or someone else's as you earlier claimed ???

You are a stinking LIAR - Habib.

**** OFF.



........ Phil

 

[[email protected]]

I guess that every Usenet-group has an obligatory troll.

Hé's more rabid than most ...

On the more serious side of thing.... I am aware of the dangers and I
appreciate yours and Phil's ("maybe") concerns.

My bookshelf has a copy of Abraham I. Pressman's "Switching Power
Supply Design" - ISBN 0-07-052236-7 - bought on some else's
recommendation.

I've not used it enough to be able to give it an unreserved
endorsement, but that stuff that I have read has been pretty good. Well
worth looking at or borrowing from a library - but probably useful
enough to have been stolen already. Libraries fill up with books that
aren't worth stealing.

 

[Iman Habib]

** So it this YOUR project or someone else's as you earlier claimed ???

Well the project as a whole is a lot more than a PSU. The PSU i really
a small part of the project so i would not consider it to be my project
per se.

Ah well... no use arguing with you about that.

You are a stinking LIAR

But of course I am, Phil. The worst kind of liar you could imagine. ;-)

**** OFF.

Thank you. I will do so.

Have a nice day my little candy cane.
*Hugs & Kisses*

//iman

 

[Phil Allison]

"Iman Habib" = another slimy, wog lying ****

Well the project as a whole is a lot more than a PSU. The PSU i really
a small part of the project so i would not consider it to be my project
per se.

** So you ALSO lied about not knowing what the project was about.

But of course I am, Phil.

** Liars who prey on honest folk's good will are the scum of the earth.

Wog liars even more so.

Since they make a lifestyle out of it.

FOAD.




......... Phil

 

[Klaus Kragelund]

Phil Allison skrev:

"Iman Habib" = another slimy, wog lying ****




** So you ALSO lied about not knowing what the project was about.




** Liars who prey on honest folk's good will are the scum of the earth.

Wog liars even more so.

Since they make a lifestyle out of it.

FOAD.

Why not just use energy answering the post instead of this babble.

NCP1011
FDS210
LNK304

Three chips from three manufactors

Regards

Klaus

 

[Phil Allison]

** Asinine Hotmail scumbag.


"Iman Habib" = another slimy, wog lying ****

Why not just use energy answering the post instead of this babble.

** Try reading the thread - you pile of wog garbage.

This " Iman" lying POS is oblivious to the crucial issue of electrical
safety.

I *answered* his post extremely well.

He had no sane explanations.

Cos his is a fucking IDIOT about to kill someone.






......... Phil

 

[Klaus Kragelund]

sorry - your right

 

[Klaus Kragelund]

NCP1011
FDS210
LNK304


Three chips from three manufactors


Regards


Klaus

 

[Winfield Hill]

Klaus Kragelund wrote...

NCP1011
FDS210
LNK304

Three chips from three manufactors

You meant to say FSD210. The first two are meant for use with
isolation transformers, which is good. The Power Integrations
LNK304 is meant for non-isolated use. It uses amazing high-side
switching with a bucking inductor, but the series is limited to
300mA or so, see AN-37.

 

[Klaus Kragelund]

Winfield Hill skrev:

Klaus Kragelund wrote...

You meant to say FSD210. The first two are meant for use with
isolation transformers, which is good. The Power Integrations
LNK304 is meant for non-isolated use. It uses amazing high-side
switching with a bucking inductor, but the series is limited to
300mA or so, see AN-37.

Yes FSD210 - but NO, not only flyback converters

- they can all run as non-isolated buck converters (it is just not
described in the datasheet). We have had close contact with both the
Fairchild and Onsemi guys and they provide application notes. We have
opted for the Onsemi part - provides up to 450mA peak current and can
be driven with bootstrap diode. A lot can be saved using the Buck
design versus the good and old flyback one

Regards

Klaus

 

[Rich Grise]

Phil Allison skrev: [the usual]
Why not just use energy answering the post instead of this babble.

We think he's probably brain-damaged, or might have Tourette's.

Thanks,
Rich