MY 1KW SMPS Completed

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Dx Hugo

New member
Okay, ETD49 core is very good!

Let me clarify that I am here to learn! You are the master here! And I am the disciple ok?

You have mail in your personal box in this forum.
 

di1in

New member
I'm a newbie here and i would be gratefull if someone could point me to a schematic and formulas for an smps project that i could do with my friends.

thanks in advance! =)
 

MicrosiM

Administrator
Staff member
I'm a newbie here and i would be gratefull if someone could point me to a schematic and formulas for an smps project that i could do with my friends.

thanks in advance! =)

Welcome to forums.


You can check previous posts, you will find the schematic of the 1KW half bridge SMPS.

Also see attched document for more info.

SMPS-Note1 is a good starting point.

We will make that SMPS soon, so please follow up
 

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  • SMPS-Note1.pdf
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  • 2006_Design_Information.pdf
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MicrosiM

Administrator
Staff member
SMPS Parts

Okay, ETD49 core is very good!

Let me clarify that I am here to learn! You are the master here! And I am the disciple ok?

You have mail in your personal box in this forum.

Have you got the SMPS parts? Core, IGBTs ?
 

di1in

New member
Welcome to forums.


You can check previous posts, you will find the schematic of the 1KW half bridge SMPS.

Also see attched document for more info.

SMPS-Note1 is a good starting point.

We will make that SMPS soon, so please follow up

Thanks Microsim, I've subscribed th thread.
 

ravs

New member
Hello Hugo.


I cant remember that you asked me for that, however

No intrested people was found into this SMPS, therefore no progress was made.

I will supply you *here* with schematic and BOM, I am glad that you are still intrested into this, this makes me happy!

I dont know if you have access to the parts.


See attached schematic for SMPS, and tel me if you can get those parts.

Also the PCB is ready for this SMPS.

hi microsim

its not that people are not interested in your smps .they do not know about this site .as you have seen
on diyaudio there is always a demand of working smps.as people come to know of this site they will show their interest too.i am also interested in making this smps.

i have couple of questions i have got etd49. could igbts can be replaced with irf450 if not then i have got
some g20n60b3d/irf g4pc50ud can anyone be used.iam also in learning mode.looking for half bridge
topology.but different books different calculations very confused.what formula did you used to calculate your
primary/sec turns.i tried marty browns,abraham l pressmams,col mclymens book.different approaches.

keep up the good work.thanks in advance.

greetings

ravs


be a vegeterian.......
 

MicrosiM

Administrator
Staff member
hi microsim

its not that people are not interested in your smps .they do not know about this site .as you have seen
on diyaudio there is always a demand of working smps.as people come to know of this site they will show their interest too.i am also interested in making this smps.

i have couple of questions i have got etd49. could igbts can be replaced with irf450 if not then i have got
some g20n60b3d/irf g4pc50ud can anyone be used.iam also in learning mode.looking for half bridge
topology.but different books different calculations very confused.what formula did you used to calculate your
primary/sec turns.i tried marty browns,abraham l pressmams,col mclymens book.different approaches.

keep up the good work.thanks in advance.

greetings

ravs


be a vegeterian.......


Thanks Ravs.


In the next weeks i will put a complete informations about calculating primary turns.

On later stages will put all other details, to help every one understand whats going on, Even my self I spent long time to understand this issue, However I am using same formula in Marty brown book!

Even on the web, i couldn't find one article that tells you how to calculate turns (they all makes you confused), or even how to extract datasheets.
 

ravs

New member
hi microsim

looking forward.
iam still reading different books.

regards

ravs

be a vegeterian
 

MicrosiM

Administrator
Staff member
Smps

Now I need to know if there is any one still interested into making this SMPS.

If yes, at lease I need to know, or some one should help me out.


Determining the power we need.

Parts availability for all those who plan to make SMPS, like

transformer they have, Mosfets, Wires available, Isolation tape.
all basic things.

In order to start the PCB, Calculating Transformer.

And much more interesting things!

Please let me know
 

ravs

New member
Now I need to know if there is any one still interested into making this SMPS.

If yes, at lease I need to know, or some one should help me out.


Determining the power we need.

Parts availability for all those who plan to make SMPS, like

transformer they have, Mosfets, Wires available, Isolation tape.
all basic things.

In order to start the PCB, Calculating Transformer.

And much more interesting things!

Please let me know

hi MicrosiM,

yes iam still waiting .but a couple of things what about an option to add pfc .single sided pcb as it would be diy version. more easily available parts ie ir2110,2113, irfp series mosfets.ir2153 is very expensive more chances of its being fake.this smps is more meant for power amplifiers so 800-1200 watt should be the
minimum rating.over current and short circuit protection should be there.for me etd 49 is available
but for some dont.so pcb layout should have the option to use different cores ie ee/toroids.

thanks

ravs


be a vegeterian......
 

dudaindc

Analog Ears!
Now I need to know if there is any one still interested into making this SMPS.

If yes, at lease I need to know, or some one should help me out.


Determining the power we need.

Parts availability for all those who plan to make SMPS, like

transformer they have, Mosfets, Wires available, Isolation tape.
all basic things.

In order to start the PCB, Calculating Transformer.

And much more interesting things!

Please let me know

Yes, still very interested but I had to move to a smaller place and most of my "lab" is in boxes in storage place a few blocks away.
Meanwhile I am reading the references you provided when I have a moment.
The $ crisis in the US is making us working more hours and earn less... not easy at the moment.
Thanks for all your efforts - lots of people admire your persistence.

Cheers,

D
 

ashutosh

New member
hi ... i am new to SMPS .. my project is of a 30 Volt , 30 Ampere SMPS ..using Full Bridge ... could you send me links to application notes useful for it ... !!

Thanks .. !!
 

ashutosh

New member
Hi.. I am making a 30 Volt , 30 Ampere SMPS .... using Full Bridge
I am new to SMPS ... could you please send me links to appl. notes for getting started ..... !!
Thanks ... !!
 

IGBT

Switching Fanatic!
Full Bridge

Hi.. I am making a 30 Volt , 30 Ampere SMPS .... using Full Bridge
I am new to SMPS ... could you please send me links to appl. notes for getting started ..... !!
Thanks ... !!


Hello



Hope the attached doc, will help you out!
 

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handrich

New member
Hi Microsim,
I'm from Indonesia and i really interesting with smps, i have build smps with transistor (self oscilating) cause ic such Ir 2153 etc is hard to find, please teach me about smps.

I'll prepare for build new project smps,

thanks for help
 
Last edited:

CobraNet

Member
Hi Microsim,
I'm from Indonesia and i really interesting with smps, i have build smps with transistor (self oscilating) cause ic such Ir 2153 etc is hard to find, please teach me about smps.

I'll prepare for build new project smps,

thanks for help

If you cant get that chip. how you will make SMPS?

Try, SG3525 and IR2110

Those are easy

I have schematic for u
 

handrich

New member
@ cobranet
I will search from psu computer, usually used sg3525.
or i will buy from ebay, i have many ferrite here (rejected unit from electronic manufacture) etd 42,49 it's only USD0,5 (include wire inside hehehe).

I really appreciated if you could share schematic to me at handrich@ymail.com
will create it by schematic and i will post the result.
thanks for kindly help
 

IGBT

Switching Fanatic!
hai

@ cobranet
I will search from psu computer, usually used sg3525.
or i will buy from ebay, i have many ferrite here (rejected unit from electronic manufacture) etd 42,49 it's only USD0,5 (include wire inside hehehe).

I really appreciated if you could share schematic to me at handrich@ymail.com
will create it by schematic and i will post the result.
thanks for kindly help


Ebay is full of IR2153D chip also, get 10 for some fun.
 
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