meanman64
Member
Looking very good you've got my attention and I'm interested in a pcb.
1kW smps project (based on MicrosiM design)
- Thread starter ludo3232
- Start date
Hello there MicrosiM and ludo,
I am new here and I was hoping to get some useful information in this forum in order to start practicing the theory that I learned. Maybe I'll do this project.
Taking into account the quote that I made, I'd like to ask you, microsim or ludo, where did you got that under-voltage and over-current protection or, in other hand if you have designed those circuits can you explain a little bit in more detail the operation of them? And how did you dimensioned the components?
Regards.
SR-been
New member
Nice work,really!
I have started to read some text from our local forum(i have mentioned this forum and thread there/put direcet links),and as much i understood there was said that the storage coil in the output between secondary rectifier diodes and capacitors provides much longer life of capacitors by decreasing currents through them(capacitors and rectifier diodes).
In this kW smps there is no that storage coil,would it be better to put it there or it wasn´t been placed here for any other reason?
Greatings!
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Do you mean at the secondary side of the transformer between the diodes and the capacitors/elcos ?
No reason other than "did not give too much attention to the secondary side"
I even thought of leaving everything out after the rectifier diodes !
But it might be good to incorporate coils in a next version.
What values do you suggest ?
No reason other than "did not give too much attention to the secondary side"
I even thought of leaving everything out after the rectifier diodes !
But it might be good to incorporate coils in a next version.
What values do you suggest ?
SR-been
New member
Sory to say this,but i am stil from those that know to reprove but don't know the answer. Here it is said really simple without going in the details:the coil from the atx pc supply should be used and to put two wind/1V . Both rails should be winded on the same torodial core. Now,if we have let's say +/-55V at output that would mean to wind 220 windings at one core. To avoid that,we should use say four of those toroides glued together and to wind quoter of windings if it was one core or 22-3 windings per rail or 54-56 in total.
I must add that this all written is how i understood it,if anyone better informed knows that i am somewhere wrong please correct me. And yes,sorry for gramar errors...
I must add that this all written is how i understood it,if anyone better informed knows that i am somewhere wrong please correct me. And yes,sorry for gramar errors...
any one has know how on this igbt
TANDBERGEREN
New member
Hi MicrosiM
I lost totally track here, since there is put in so many other SMPS here. A bit confusing.
Could You please put in the finished version of the schematics and for the PCB?
Also, here I would need a 230V (220V) Schematic. Possible for use to supply +/-80VDC to a good amplifier.
Thanks to both You and Ludo for both educational and fine work.
I lost totally track here, since there is put in so many other SMPS here. A bit confusing.
Could You please put in the finished version of the schematics and for the PCB?
Also, here I would need a 230V (220V) Schematic. Possible for use to supply +/-80VDC to a good amplifier.
Thanks to both You and Ludo for both educational and fine work.
Yes, I agree with you about that.
Ludo made this SMPS for his own use, and he never shown the last file, because he worked at the design alone.
But as You can see, (Kaip) made the most corrected design as I can see.
Also you should remember that you MUST make a prototype of this SMPS. As you can see every one is making his own PCB, and there is NO official PCB release yet.
I started to think seriously to make a PCB and a well documented file for DIY, to make your own SMPS.
Let me know if you need further help
Regards
TANDBERGEREN
New member
Thanks.
Yes, I see I would have to make my own layout.
Would like it to fit in the enclosure I have in mind.
Aswell as giving it my own little twist.
Custom voltage, custom protection, custom monitoring.
I will look close in to this project, and see if it can be used as a basis for my own smps.
There is some issues I would like to follow up.
But again, Thanks for the inspiration and well made project.
You seems to have good knowlegde and I hope to be able to ask You whenever I am stuck.
Best regards.
Yes, I see I would have to make my own layout.
Would like it to fit in the enclosure I have in mind.
Aswell as giving it my own little twist.
Custom voltage, custom protection, custom monitoring.
I will look close in to this project, and see if it can be used as a basis for my own smps.
There is some issues I would like to follow up.
But again, Thanks for the inspiration and well made project.
You seems to have good knowlegde and I hope to be able to ask You whenever I am stuck.
Best regards.
SR-been
New member
Finally i have read the whole thread...now for the next one:http://www.diysmps.com/forums/showthread.php?302-My-first-build-smps-1kw-design-by-microsim and than next one: http://www.diysmps.com/forums/showthread.php?216-800W-Half-Bridge-SMPS-for-audio-amplifier and than next one: http://www.diysmps.com/forums/showthread.php?250-IR2153-smps-with-short-circuit-protection and than next one...
I have found some answers,and also some new questions. Nice forum for these things,it should be more popular!
I have found some answers,and also some new questions. Nice forum for these things,it should be more popular!
SR-been,
yes there is lot of information's here, and I cannot answer every post as you can see.
I work very hard to make this place growing in the right direction.
feel free to ask
Thanks
Hi Stewin,
These IGBTs are good for up to 700 ~ 1KW SMPS, but if you parallel two of them you may get 1.400W.
But I advice you to use something like HGTG30N60A4D as a start with your SMPS, you need something like this because the start-up current of the SMPS is huge, and you need high current IGBTs to prevent damage!!
Regards
SR-been
New member
Besides a lot of schematics and pcb´s in this thread i have also seen how much effort have you invested here and how many answer have you given. At least what i can do is to read this few threads more and to built some foundation of knowledge so i don´t need to ask you every little thing about smps. When i start my own smps i will do it with your help when you will have a time to put me to a right way and to notice me if i do anything wrong. I am really glad to find this forum and You so willing to give some answers when needed the most.
Keep on with it!
thanks alot sir microsim . i guess i will just stick to irfp460
