SMPS IR2153 vs ATX transformers - Page 3

AutoClassA · 21st April 2011, 12:22 PM

What a robust SMPS

Mircea Crisan · 21st April 2011, 08:17 PM

Something like this?

AP2 · 22nd April 2011, 04:53 PM

Hi,
for startup sequence, yes, is possible unbalanced but think it's catastrophic for audio (the frequency varies continuously with the load). apart from the imbalance
in the case of dual output.

Mostech · 25th April 2011, 04:32 PM

AP2

Did you get my PM?

Please responde

AP2 · 25th April 2011, 07:50 PM

Quote:

Originally Posted by Mostech

AP2

Did you get my PM?

Please responde

Hi,
I got it but I'm waiting to return to the office after the party.
I think I can answer you Tuesday.

Regards

Mostech · 26th April 2011, 07:09 AM

Quote:

Originally Posted by AP2

Hi,
I got it but I'm waiting to return to the office after the party.
I think I can answer you Tuesday.

Regards

Happy Easter for All

radio · 23rd August 2011, 07:21 AM

Quote:

Originally Posted by AP2

Hi,
certainly is not easy to develop effective protection for the 21531.
But since they wanted to use the 2151.
TL494 is good, Also you can add a driver eg. IR21xx or a transformer to drive the mosfet.

however I've solved the problem at the start of 21531. in the presence of a short circuit or high absorption. I enclose a pic just for curiosity. worked from 2002 until 2007 without problem in class H amps.
I think it works better, less RFI / EMI of some unregulated on the market.
somewhere in this forum I already put the diagram.

Hi
Where is a diagram not to wander?
thanks and cheers !

AP2 · 23rd August 2011, 01:39 PM

Quote:

Originally Posted by radio

Hi
Where is a diagram not to wander?
thanks and cheers !

Hi,
I not have time for put new, maybe at weekend.
I do not remember where thread I put it, sorry.
If you are interested, I have some pcb (equal to the photo), I think 5-6 pz.
components can be found easily (few components).
I have the PCB and transformer to + /-68v 14Amp, and mosfets.
PCB, MOSFET and small heatsink for 5 pz, I can give.

Regards
Roberto

AP2 · 23rd August 2011, 02:59 PM

I mean, i can give without money

Regards

marce · 23rd August 2011, 03:12 PM

There dosn't seem to be any creepage and clearance between the high voltage input and the low voltage stuff!

21st April 2011, 12:22 PM	#21
AutoClassA Banned Join Date: Oct 2010	Woow What a robust SMPS

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22nd April 2011, 04:53 PM	#23
AP2 diyAudio Member Join Date: Dec 2009 Location: Italy	Hi, for startup sequence, yes, is possible unbalanced but think it's catastrophic for audio (the frequency varies continuously with the load). apart from the imbalance in the case of dual output.

25th April 2011, 04:32 PM	#24
Mostech Banned Join Date: Jan 2011	AP2 Did you get my PM? Please responde

23rd August 2011, 02:59 PM	#29
AP2 diyAudio Member Join Date: Dec 2009 Location: Italy	I mean, i can give without money Regards

23rd August 2011, 03:12 PM	#30
marce diyAudio Member Join Date: Jun 2007 Location: Blackburn, Lancs	There dosn't seem to be any creepage and clearance between the high voltage input and the low voltage stuff!