I remember the 3000 chassis. Now with a fond recollection, but at the time I hated it. More than 80% of the faults were P.S.U. faults, not so bad when you had your list of stock faults. (On paper or in your head no computers as such then).Incidently, the worlds first domestic use of a SMPSU was in the Thorn 3000 colour TV about 1972 or so?.
Rick Br@nchTV.
I think, therefore I am. Therefore I must be !!! I think ???
I loved it back then as well, I built a jig for repairing 3000 panels, and one for repairing Bush A823 panels as well - I've no idea how many panels I repaired over the years, but it was a LOT!Originally Posted by rmn_tech
PIC programmer software, and PIC Tutorials at:
http://www.winpicprog.co.uk
Which is a nice theory. In practice, resistance and core losses go up as dimensions go down. And like every good law, there is an exception: At very high frequencies the resistance goes up again due to the skin effect.
Flybacks are normally not used at high power. The reason is that you can get twice as much power through a core in a bridge topology.A typical "offline" switchmode converter will first rectify and smooth the line thus creating a high voltage DC. From there, a PWM method is used on a flyback transformer to generate the right output (typically)
The http://www.ferroxcube.com/prod/assets/e22616.pdf can run around 100W flyback or 200W push-pull, and the http://www.ferroxcube.com/prod/assets/e641050.pdf can pass 3KW!
Smps
Sorry for my earlier reply, I must have been tired, and thought you needed a high current DC supply.
I didn't read your question correctly and missed that you were after a high current AC supply.
As already said by our other members, an autotransformer is lightest but the output is not galvanically separated from the mains supply.
Regards, Raymond
There are more ways to get to Rome.
Electricity, Electric clocks, Meters and Trains are great.
Please don't sent me private messages, I will not answer them.
The questions asked can be discussed in the open forums.
http://www.youtube.com/user/RODALCO2007 some interesting electrical stuff to watch.
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