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Old 31st January 2007, 05:30 PM   #1
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Default Help Me 230vac Smps

Hello Dears

Please I need you help me with a 230VAC SMPS building with SG3524/25 or TL494 PWM IC. Post anything. Thanks.

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Old 4th February 2007, 06:19 AM   #2
luka is offline luka  Slovenia
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It would be good to know how much power you need, now many outputs, regulation,...
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Old 9th February 2007, 10:08 AM   #3
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OK Mr. Luka

Im building it, but, Im with problems with the push pull driver and toroids.... I have a old 1.5 inches outer diameter green color toroid, 1.2cm (Ae), and I dont know how much (many) gauss it is.
I need calculate the number of turns of this ring core and the other, that mosfet gate driver. My SMPS work only in 127VAC and its half bridge, 13VDC output, opto-zener regulated, I need some 20Amps, in this moment is only 5 to 7 Amps and the BUZ73A mosfets (so bad) bang!! OK?!

I waiting by your help

Thank you.
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