it is easy to overlook🙂 on the upper transformer, the 2 sec was out of phase.
red and black cable.
red and black cable.
What effect did that show or measure?
For a dual rectifier into dual polarity supply, the phasing of the secondaries does not matter.
However leakage effects between the windings may have some effect that changes with secondary phasing.
For a dual rectifier into dual polarity supply, the phasing of the secondaries does not matter.
However leakage effects between the windings may have some effect that changes with secondary phasing.
Ok, so how can I build the best PSU for it?
Is there a chance for a scheme and a bom?
Cause i don't think, that I'm able to figure it out for myself :]
Is there a chance for a scheme and a bom?
Cause i don't think, that I'm able to figure it out for myself :]
with 2 of the PSU boards from chipamp, 12pc 10.000uF+ caps. 20pc 1ohm 3W resistors.
4pc 2.2Kohm 3W resistors. 4pc 2.2uF film caps. and some rectifier diodes or bridges.
4pc 2.2Kohm 3W resistors. 4pc 2.2uF film caps. and some rectifier diodes or bridges.
Simple, build the PSU from the schematic twice. (no, i'm not kidding)
But you really need to do a few things before that;
Do you have a chassis? Are you looking at one specifically?
Are you planning on using a PCB for the powersupply? Which one?
Do you have a link to the transformers you bought? Their configuration might make a diference on how you procede.
Don't worry if you have confusion or a question, just ask you questions here, we are all pleased to help!! 😀 😀 😀 😀 😀
Tehtoril,
If you haven't already done it, the most important thing of all is to download Papa's manual, it has everything in it you need to know, read it carefully, then read it again, once you have done that, read it again.
http://www.firstwatt.com/pdf/prod_f5_man.pdf
If you haven't already done it, the most important thing of all is to download Papa's manual, it has everything in it you need to know, read it carefully, then read it again, once you have done that, read it again.
http://www.firstwatt.com/pdf/prod_f5_man.pdf
1. I don't have any chassis, I was going to order/make one, at the end of the build, because right now I have no idea how much space do I need for all of it..
2. A minute ago, I just bought 2x chipamp PSU pcb's 😀
3. Here's the pdf with the transformer: http://www.toroidy.pl/karty/pl/KK300.pdf
Unfortunetely for You. it's in polish 😀 But I can try and translate anything You need 😀
Right now, I'm in the process of filling the basket in mouser.com (basing on the first pdf with bom that I wrote in my first post)so any advices would be much appreciated 🙂
he was thinking if there was dual sec or center tap transformer🙂
this is dual sec. so you stand more free to use the rectifier setup you want.
this is dual sec. so you stand more free to use the rectifier setup you want.
use the chipamp PSU boards🙂 they are good boards.
but you can use external rectifiers insted of the onboard ones🙂
but you can use external rectifiers insted of the onboard ones🙂
regards to chassis it realy depends on where you live. the shipping cost can be high. but modushop selling some nice chassis. dissipante 3U 400mm is a good one.
Thanks.
One more question - do I have to stick tightly to the voltage rating of the resistors listed on the bom, or can I change for the one with higher voltage and lower tolerance? I want the best quality everywhere i can afford so I;m looking for the lowest tolerance 🙂
One more question - do I have to stick tightly to the voltage rating of the resistors listed on the bom, or can I change for the one with higher voltage and lower tolerance? I want the best quality everywhere i can afford so I;m looking for the lowest tolerance 🙂
you meen wattage? you cant go over 5W they will be to big. i use only 3W on my supply's and they stay cold🙂
4U/400mm and up is a little wast of money for a standar F5 unless you live in a dessert😀
even a 2U/400mm will keep it at 30C above ambient🙂 but its on the edge.