diysmps

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Calculation programs for transformers and inductors

Raza 12-22-2019 11:26 PM

smps flyback controller ic

I am a nub is smps and just completed my first breadboard isolated smps with 24 volt input. I used the SG6848D controller from Ebay. Anyone has any suggestions for a better IC.
Just some details...
d52perry 12-15-2019 06:34 AM

Current Transfromer T1 Design

Does anyone know the picture of the transformers windings design?
Thanks
Faker 11-28-2019 03:18 PM

Current Transfromer T1 Design

Does anyone know the picture of the transformers wingdings design?
Thanks
Faker 11-28-2019 03:17 PM

Current Transfromer Design T2

Does anyone know the picture of the transformers wingdings design?
Thanks
Faker 11-28-2019 03:17 PM

Recent Forum Posts

IR2153 HO doesn't switch

Keep in mind that the IR2153 has two totem poles with there output being the low side at pin 5 which should be referenced to ground and the high side
Silvio 03-28-2020, 12:25 AM

IR2153 HO doesn't switch

Hi, I faced the same problem earlier. But that was my fault. I forgot to connect the VS pin (pin#6) to the center point of the two FET's. The bootstrap
sbdada09 03-27-2020, 09:53 AM

IR2153 HO doesn't switch

I'm building an IR2153 SMPS and I have a problem with the controller. HO doesn't switch, it stays high and blows the transistors. LO switches fine. I
bogdan2011 03-26-2020, 10:17 AM

Audio smps 700w (IR2153)

Hi steven
I am not sure what he used exactly but make sure that the voltage rating of these mosfets be 600v or more. There are a lot of high voltage
Silvio 03-25-2020, 10:03 PM

Audio smps 700w (IR2153)

@Davidson

Regarding the CBB caps yes they are enough and can pass all the current needed. I could also have use 0.47uF if I wanted. You
Silvio 03-25-2020, 09:50 PM

Audio smps 700w (IR2153)

what is the value of q4 and q3 in the pfc stage?
stewin 03-25-2020, 03:50 PM

2 basic question about half bridge smps.

thanks all for this topic it was helpfull
stewin 03-25-2020, 03:41 PM

2 basic question about half bridge smps.

Ok, it's clear now. Thank you again Mr. Silvio .
sbdada09 03-20-2020, 09:21 PM

2 basic question about half bridge smps.

Yes it can resonate but it depend on the value and the switching frequency. However in the cases shown the capacitor is there to block DC
Silvio 03-19-2020, 10:21 PM

2 basic question about half bridge smps.

Thank you Mr. Silvio for your valuable information, these will help me a lot.
I'm little bit confused though, sorry for that. As you said, C4 in
sbdada09 03-19-2020, 09:26 PM
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Class D 200 Wrms with 2 mosfet cheap
Thread Starter: norazmi
Here again, this one i already made and success, idk if this amp can provide true 200 wrms but i aim at least 100 wrms, tested run with +- 45 vdc...
Last Post By: stewin 03-16-2020, 09:20 PM

Audio smps 700w (IR2153)
Thread Starter: Silvio
Audio smps 550 watts 700watts peak Here is an audio half bridge smps that can be altered in quite a lot of ways. This smps was designed in such a...
Last Post By: Silvio 03-25-2020, 10:03 PM

2 basic question about half bridge smps.
Thread Starter: sbdada09
Hi everyone, please do me a favor. 1. So far I found on the internet, these are the most common configuration of half bridge. I want to know...
Last Post By: stewin 03-25-2020, 03:41 PM

IR2153 HO doesn't switch
Thread Starter: bogdan2011
I'm building an IR2153 SMPS and I have a problem with the controller. HO doesn't switch, it stays high and blows the transistors. LO switches fine. I...
Last Post By: Silvio 03-28-2020, 12:25 AM

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