DIY 30V 10A HALF BRIDGE SMPS WITH SG3525 IR2110

Hello guys KD here. Today i have made a very powerful smps with very popular ic SG3525. i have used a mosfet driver ic IR2110. The smps has feedback system so you can also adjust the output voltage according to your requirement. I have used a current transformer (CT) for short circuit protection. The sensitivity can also be changed with a variable resistor. I have used 10N60 mosfet which can easily give a output power of around 400W. It also has a auxiliary power supply so you can also add a external 12v fan to it. I have used EE42 ferrite transformer which can easily handle this much power. All the details related to this circuit is given below. If you want to ask anything related to this circuit then feel free to ask in comments or in messenger.
THANKS FOR WATCHING. HAVE A NICE DAY :)
INDUCTOR DETAILS
CURRENT TRANSFORMER
OUTER DIAMETER- 13MM
INNER DIAMETER- 7MM
HEIGHT- 5MM
50+50 TURNS, 0.2MM
OUTPUT FILTERING INDUCTOR
OUTER DIAMETER- 24MM
INNER DIAMETER- 13MM
HEIGHT- 7MM
20 TURNS, 2 X 1MM
TRANSFORMER, SCHEMATIC AND PCB LAYOUT
drive.google.c...

[@emmanueloffiong4652]

You are a good instructor 👨‍🏫 and I love it

[@kdcreativity6201]

Thanks bro

[@tonyasmara9066]

Thank you so much for sharing the schematic also PCB layout.... great job... and I like the video also..

[@amirhosseinabbasi8745]

Thanks for your explanation، Can you explain more about current protection that use in this circuit, I dont understand it.

[@lenslens7379]

Congratulations! Working with ir2110 is so critical and risky than gdt driver

[@kdcreativity6201]

Right !

[@evgeniylazurenko]

It's unbelievable! Super useful! Like as always! We are waiting for new videos! It would be good to make an adjustable power supply! On current and voltage!

[@kdcreativity6201]

Yes, its in my to do list 😊

[@milanmakwana3883]

dear sir nice video but is it possible 12v aux supply is can be generated by other method & also share transformer design calculation for different output voltage

[@Edmorbus]

Keep up the good work

[@kdcreativity6201]

Thanks 😊

[@Sekhar_Home]

Your pcb looks very good.. could u pls teach us how to make such good quality pcb at home . Pls make a video

[@kdcreativity6201]

Ya sure 😋😄

[@rhenaldirafif1547]

Bro can you show the value of all transfomer inductor? In Henry

[@jpjp8964]

Well done brother 👍, congrats.

[@kdcreativity6201]

Thanks 😃😃

[@rhenaldirafif1547]

Hi, I want to ask, can we adjust the voltage and current in this smps circuit? Like adjust with fine and course

[@kdcreativity6201]

You can set the output voltage only, for current it has over current protection. The circuit is turned off when it reaches the oven current protection limit

[@rhenaldirafif1547]

​​@@kdcreativity6201the max overcurrent is just 10A right? So we can adjust under 10A

[@kdcreativity6201]

Yes

[@Yorumcu63]

Great video .I was watched some videos and your videos great because you r videos have test sections too.
My question is about PWM controllers have some protect features (for example over voltage Protection etc)
how understand pwm controller's in protect mode in not working power supply?
For example how can make "Troubleshooting board for IC"
* We can try extarnal power supply voltage for PWM controller
* We can apply suitable frequency and wave to need IC pin/pins for find problem
Could you make a video for a famous PWM controller's "How understand PWM controller's protect mode"

[@kdcreativity6201]

Thank you very much.
•Yes you can add a over voltage protection circuit too but you have to add a comparator at the output and connect it to the pwn section for shutting down.
• You can power the pwm circuit externally and check the frequency on the output pins or you can check the voltage, it should be between 3v-5v
• If you want to check the IC’s then you can power them and check the following things
1. They are heating or not
2. Proper voltage on reference voltage pins
3. Output voltage on the pwn pins

[@thesquealer1907]

Hello, what are the information of the Common mode choke coil you use and the information of the CT coil used for short circuit protection?

[@kumarpriyansh4238]

This is great. I would like to buy this one.

[@kdcreativity6201]

Thanks, this project is still under process 😊

[@mounishpolisetti8834]

That's Great Man✌

[@kdcreativity6201]

Thanks 😊

[@mariote1359]

Beautiful, but i always like more when you explain the rewind transformers

[@kdcreativity6201]

The winding of the power transformer is very simple. And for the auxiliary transformer winding, you can watch my old video about 12v 1a smps, both are same. Thanks 😊

[@mariote1359]

@@kdcreativity6201 Tankyou

[@masterinembeddedc7376]

@@mariote1359 main transformer ee42 core how to winding details ?

[@masterinembeddedc7376]

Start Primary half then secondary full end primary half this way winding

[@kdcreativity6201]

Yes 👍🏻

[@Famicro]

Nice sir. Is PCB ready for use alvailable
Please advise.

[@kdcreativity6201]

Yes, you can download the pcb files from the video description

[@VikasKumar-po9do]

Can we use alternative of IR2110 like agd8252 or BS2114 OR IR2101

[@reza6x]

very very excellent

[@ducducdientu]

Wow i like it 😍

[@kdcreativity6201]

Thank you! 😊

[@scorpioustrackerspvtltd8900]

What is the primer Inductance of of Main Transformer?

[@giantturno]

Do you have a recommended material or online resources for core winding calculations?

[@kdcreativity6201]

I will make a video on this topic

[@giantturno]

@@kdcreativity6201 Thank you very much.

[@raymondmichael4987]

Thanks, the auxiliary part is missing explains brother, I’d like to know more

[@kdcreativity6201]

There is a separate 12V power supply for the control circuit and fan. For short circuit protection, the ic needs a separate power supply to work properly. The auxiliary power supply works even after the output shut downs

[@PiotrK2022]

@KD CREATIVITY That PWM controler provides plus and minus, so you don't need driver for mosfets swiitching, you can connect them directlly... Speaking of buzzing, first thing first, take an osiclloscope and check for oscillations: primary winding, secondary winding, feedback cirucitry and output itself, at the output terminals. Generally speaking that sort of problems may be generated by inductors/traformer winding vibration, badly designed grounding traces/faulty capacitors, SMPS overload,, and possibly a few other things that I currently forgot to mention

[@ahmadhemmaty9638]

its nice

[@subhrajithalder6080]

I would like to buy this power supply from you. Would you like to sell it?
If yes please mention me the price, btw great job 👍

[@morgan0gaming]

good

[@TheJavaSync]

This is no need gdt transformer?

[@masterinembeddedc7376]

Hello bro nice smps project but i am confused transformer winding auxiliary transformer step by step video guide the transformer winding
Please help me ?

[@kdcreativity6201]

I have given the transformer details in the video description but if still you need to see the detailed winding of the auxiliary transformer, then you can see my old video of 12v 1a smps. Both transformer has same winding details. Thanks

[@masterinembeddedc7376]

Thanks bro 💚

[@masterinembeddedc7376]

Sg3525 switching frequency 65 khz / 91 khz ?

[@kdcreativity6201]

Its 65khz

[@masterinembeddedc7376]

output transformer input voltage ?

[@tafsiralmuyassar]

I have tried your circuit but the output diode is always broken when the load is 5a to 10a sometimes the load 1a is very hot please help me

[@kdcreativity6201]

Which diode are you using ?

[@tafsiralmuyassar]

@@kdcreativity6201 I use the stps4080 40a 80v diode and I use the ee42 non gap transformer I always have problems with the diode which is always short

[@tafsiralmuyassar]

@@kdcreativity6201 please help me

[@kdcreativity6201]

@@tafsiralmuyassar try replacing the inductor

[@Design-u8f]

hi sir, can you send the winding diagram for current sense transformer?

[@pasupuletivenkatesh4642]

Hi bro.
I regularly follow your videos.
I learnt a lot from your videos.
Thanks a lot.
I made one 24v smps with ob2269 ic
It works fine.
But it giving hissing noise while no load and lightly loaded condition.
When i increase load the hissing noice gone.
What is the problem and is there any solution for this problem?
Iam using E-I 30mm core
With 35 primary and 8 secondary turns.

[@kdcreativity6201]

Thanku very much bro. The reason for that hissing sound is the main transformer. Can you tell me the air gap in the transformer so that i can check your winding data

[@pasupuletivenkatesh4642]

Thank you for replying.
I didn't not create any air gap for transformer.
Is air gap is necessary?
Iam using E-I 30mm core.

[@kdcreativity6201]

Bro air gap is very important

[@pasupuletivenkatesh4642]

How much air gap should I maintain?

[@pasupuletivenkatesh4642]

Can you please share the 24v 6a smps EasyEDA pcb files.
Because the pdf picture quality is not that much of good.
Please send the pcb files (not the Gerber files)
Thank you soo much bro

[@koushikpramanik3716]

Sir Ji 90-0-90 20amp smps design kijiye. i am waiting for this. thank you

[@kdcreativity6201]

Ok

[@chibuzoeze4225]

Pls make inverter iron core transformer with sg3525 or tl494 with feedback

[@kdcreativity6201]

Ok I’ll try

[@PeacefulWorld]

Brother, I am searching since a lot of days one thing that How to Make Pure Sine Wave Inverter with 500W Inverter Module (QS-100) and EGS002 SPWM. Please make a video about this. Also give us 3D Easy Diagram. Please Please brother. I know you can do it.

[@chibuzoeze4225]

Can we achieve more than 20A using this technology?

[@kdcreativity6201]

Yes 👍🏻

[@Dc_tech386]

It’s your transformer winding need to be tighter and seal with varnish or super glue that’s your noise good job though

[@kdcreativity6201]

Thank you very much

[@arnopfuetzenreiter9536]

Muito bom!!!

[@kdcreativity6201]

Thanks 😊

[@PradipKumar-xr4kv]

If you do not mind, i am to say you something. Your projects are nice ones but your explanations are not good. You should have explained every aspect with calculations. If you know hindi, it would be added advantage.

[@samudrasaha209]

can u make a mini 5 volt smps

[@kdcreativity6201]

Ok, i will try

[@samudrasaha209]

@@kdcreativity6201 thanks

[@umashankar8247]

50-0-50 20amp dc caneter

[@kdcreativity6201]

Ookk

[@masterinembeddedc7376]

Wire mm to wire gauge which wires 0.2mm, 0.45, 0.4, 0.5 please send a wire gauge number.............

[@masterinembeddedc7376]

I design 12v section is not working send a swg number which wires

[@masterinembeddedc7376]

How to design a transformer?

[@kdcreativity6201]

You can google this. MM to swg