1kW smps project (based on MicrosiM design)

[MicrosiM]

Greetings ...
First sorry for my bad english..
I am a new member on this forum, my name is afton, Iam come from East Java Indonesia .
I want to ask about a replacement transformer EI38-1 what? because here the transformer is difficult to get it

regards,

ETD39
ETD29

these transformers are good choice

 

[afton]

after I watched the scheme ,the transformer EI38-1 function is to provide a voltage source IC 7815, really like it ?
if using ETD39 and ETD29 what does not need to winding back to 230VAC input and adjust its output?
thank you for instructions.
Regards,

 

[afton]

please prompts brother @microsim,
how to primary and secondary windings, if I use ETD39 or ETD29 that gap or ungap?while the IR2110 I plan to replace it with GDT ...
thanks
regards,

 

[jagdeepsingh]

Hello microsim i want to ask if its possible to have your eagle designe files because i would like to add this part to make it variable voltage and current ?
Or if you have time to do for us thanks in advance

 

[jagdeepsingh]

soory for bad quality image

 

[Bahman_am]

hi.
Thank you so much MicrosiM.
I start smps with your design and your guides about two years ago.
and now i built this.
1000w smps with :
soft start.
temperature control (fans and cut out)
overload protect
outputs: +-15v , 5v , 48v , 12v , +-80v
everything is OK.
thank you MicrosiM.

 

[MicrosiM]

hi.
Thank you so much MicrosiM.
I start smps with your design and your guides about two years ago.
and now i built this.
1000w smps with :
soft start.
temperature control (fans and cut out)
overload protect
outputs: +-15v , 5v , 48v , 12v , +-80v
everything is OK.
thank you MicrosiM.

Very nice looking SMPS. Thanks for sharing

 

[MicrosiM]

Hello microsim i want to ask if its possible to have your eagle designe files because i would like to add this part to make it variable voltage and current ?
Or if you have time to do for us thanks in advance
View attachment 5284

I dont have any Eagle files for either versions of the SMPS, Ludo published them somewhere here.

Regards

 

[jagdeepsingh]

I dont have any Eagle files for either versions of the SMPS, Ludo published them somewhere here.

Regards

ok i will try to find it, but whay do you think it will work fine with that vurrent and voltage limit circuit?

 

[jagdeepsingh]

i found the schematic files but they are ony in pdf format..

 

[Weller]

Hi,

I'm building a SMPS based on a schematic placed earlier in this thread. I scaled it up to 2kW.

Transformer is winded by a Chinese company.
I use a viper26 to supply the sg3525 and ir2110.

 

[jagdeepsingh]

Hi,

I'm building a SMPS based on a schematic placed earlier in this thread. I scaled it up to 2kW.

Transformer is winded by a Chinese company.
I use a viper26 to supply the sg3525 and ir2110.

Hello can we see your modifications in the schematic please because i'm also working on 2.4kw... it will be helpful if you share the schematics thanks..

 

[Weller]

I share the schematics only if its working. So, please wait a few weeks when I have tested the whole circuit.

 

[sa030]

Hi Weller,
I want to make 2kW SMPS too. What is finally winding of your transformer? Did you reach wanted 2x90V with only 2x4 turns? Also, about primary, have you thought 2x8 turns?

 

[vdij]

Without stabilization.

 

[vdij]

KA3525+GDT+G20N50+ETD44, +-75V, +5V, -5V, +12V, F-60kHz, 1kW. Test.

 

[badboy_6120]

Hello Everyone

For a while I found this thread and I was interested to build this SMPS (Ludo3232 and Microsim design)

But I haven't got the time until now

I want to build this 1KW SMPS but honestly I'm a bit confused because I don't know which version to build that would definitely work and is 100% tested

and I know "Zoky 2" build the 3.11 version on post #198 and page 20
http://www.diysmps.com/forums/showthread.php?79-1kW-smps-project-(based-on-MicrosiM-design)/page20

but He never posted his final result

So now Mir Microsim which version is fully tested and will work

also you said in post #441 on page 45 to change SG3525 connection as your attachment

I don't now what to do

Also if I know which one is the working one, I will build the PCB for everyone to use with correct components and connections

Please guide me
I really need to build this SMPS for my amplifier

Thanks in advance

 

[badboy_6120]

anyone????

 

[SowaZ]

Hi guys, I'm new

I join to ur question badboy, and I have a few, other question:

-Can I do this SMPS without oscilloscope?
-Which PCB and schematic+partlist are the best
-How much $$ parts for this project

Thanks guys, sorry for my eng, Im from pl

 

[badboy_6120]

Dear Microsim any help?