K6- Switching power supply

microsim444 · 15th December 2008, 12:26 PM

I wonder if any one worked and succeeded into the K6 switching power supply,

www-a-and-t-labs.com

I built this supply from scratch, but the mosfets burns at 3 amp draw .
I dont know why!?

I connected my amplifier, put some music at high volume 4 Ohm load.

30 seconds playing. watching the multimeter, at 3 amps , the fuses blown, check mosfets, they are gone!!

they get very hot at low current draw.

Any comments?

Fob · 29th December 2008, 05:58 PM

Try to make some driver enhancement I don know why, but this topology with transformer driver is not good.

dtproff · 7th January 2009, 07:02 PM

There are several bad reports on this particular power supply. Do a search and you can follow the threads.

microsim444 · 17th January 2009, 12:10 PM

this design is trick, it will not work unless you buy the original transformers, (I dont think it will work either)

i am moving to a new design now, IR2110,

15th December 2008, 12:26 PM	#1
microsim444 Account Disabled Join Date: Oct 2008	K6- Switching power supply I wonder if any one worked and succeeded into the K6 switching power supply, www-a-and-t-labs.com I built this supply from scratch, but the mosfets burns at 3 amp draw . I dont know why!? I connected my amplifier, put some music at high volume 4 Ohm load. 30 seconds playing. watching the multimeter, at 3 amps , the fuses blown, check mosfets, they are gone!! they get very hot at low current draw. Any comments?

17th January 2009, 12:10 PM	#4
microsim444 Account Disabled Join Date: Oct 2008	H this design is trick, it will not work unless you buy the original transformers, (I dont think it will work either) i am moving to a new design now, IR2110,

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7th January 2009, 07:02 PM	#3
dtproff diyAudio Member Join Date: Oct 2008 Location: Plano, TX, USA	There are several bad reports on this particular power supply. Do a search and you can follow the threads.

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