Thread: Anyone try a Forward Converter?

Alright! 4 posts in a row!

Everything's been ordered from www.mouser.com

Total cost was $13, and I ordered double everything in case I break something. I didn't get the resistors/capacitors yet, but I can get them for pennies locally.

I'll let everyone know how it went in a week or so when everything shows up in the mail.

Arby,

Please take pictures and make notes...
Then it's easy for others to do the same.

Good luck and let us know !

Greetz

I've done this too. MKIII power supply is a front end modified PSU just like this, however, my first few sorta stuffed up due to a HF problem. My supply would squeal (duty cycle exceeded) and I couldn't pull it in enough. Replacing the core with a Toroidal made a huge difference.... I guess the core material of my other trani couldn't handle the frequency. Mine runs @ 35kHz now quite happily. Toroids go off!

I'll have to take some pics of the PSU when I've finished moving house

The way the secondary supplies 12+ and -12V is not the difference between the 24V supply, but done with separate windings. Because the windings are seperate (on mine they are) you simply use one winding to provide one voltage and reverse the diode on the other isolated winding for it to produce neq voltage. Because the frequency is so high, one diode is all that is needed to rectify the AC into DC. Then filter it with a ESR cap, and Viola!

marsjell....the link at www.noduck.nl/mp3.htm is now broken. Would like to see this schematic...anyone know where it is posted or can they repost it. Thanks.

hey can anyone list the parts needed for this conversion?
damn this thread is old.

Anyone know anything about this stuff? The thread is about 3 years old and all the links are dead. Still, if anyone does understand this stuff it could be VERY useful!

grahamrb & dannn:
I would be glad to be of service, check www.namms.tk
Allthough I would advice you to simmply buy a morex dc-dc converter there pretty cheap, not as cheap as this forward converter but it saves you a lot of time trying to make sense of all that is written. True for about $35 bucks you have a rock solid dcdc converter, but the time and de aggony just isn't worth it anymore.. At the time this thread was started the cheapest dcdc converter was about $250~300, but now you have excellent converters starting at $60,- (in the netherlands check www.stanet.nl, search for carpower).

I was great to do, but if mine breaks down I'm gonna buy one.

ok - so that site is also b0rked... anyone got a zipped copy that I can mirror?

what's b0rked? what does that mean?