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Silvio's latest activity
Silvio
replied to the thread
Output current problem
.
You relate power in the input and power in the output according to the voltage in each case. Volts per turn Pri = 320v / 30 = 10.7v per...
Today at 6:36 AM
Silvio
reacted to
scormonel's post
in the thread
Audio smps 700w (IR2153)
with
Like
.
This is how I feed the IR2153 without heating anything.
Jul 26, 2022
Silvio
replied to the thread
Audio smps 700w (IR2153)
.
Regarding the 13v zener burning it is not normal because at 4 turns in the auxiliary winding the output voltage here is around 18 to...
Jul 22, 2022
Silvio
replied to the thread
Audio smps 700w (IR2153)
.
Hi Benny, be careful that you are not using IRS 21531 as this IC has a shorter dead time only 0.6uS compared to the IR 2153 which is...
Jul 21, 2022
Silvio
replied to the thread
UC3842 SMPS short circuit protection
.
Hi Saqib, I think you are missing something here. Let us consider your forward converter. So the power to be absorbed by this forward...
Jul 20, 2022
Silvio
replied to the thread
UC3842 SMPS short circuit protection
.
Jul 20, 2022
Silvio
replied to the thread
Output current problem
.
The assumption is not right. You have to consider power input versus power output and adding around 20% more on the input to cover...
Jul 17, 2022
Silvio
replied to the thread
Ir2153 oscillation problem
.
The high side gate drive pin7 gets its power from the bootstrap capacitor. This capacitor charges itself when the lowside mosfet comes...
Jul 3, 2022
Silvio
replied to the thread
Help Pls: IR2153 HB failure.
.
One other thing I am noticing is that the voltage regulation at pin 1 is all depending on the internal 15v zener inside the chip. I also...
Jul 3, 2022
Silvio
replied to the thread
Help Pls: IR2153 HB failure.
.
The IR2153 is designed to power medium power mosfets, (10A) however in this circuit the 20n60 mosfets used have a a very low gate charge...
Jul 3, 2022
Silvio
replied to the thread
Testing circuits
.
First of all if you intend to build a high current smps, then it has to be prepaired from the design stage. Type of transformer...
Jun 22, 2022
Silvio
replied to the thread
Help Pls: IR2153 HB failure.
.
Do you have a problem maybe I can help you? Regards, Silvio
Jun 20, 2022
Silvio
replied to the thread
Making litz wire at home
.
Well I also tried my software Excellent IT 7300 at this but as you can see the rated transformer power is far less the the desired...
May 31, 2022
Silvio
replied to the thread
Making litz wire at home
.
May 31, 2022
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