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Dear all I need to make a full bridge smps with symmetrical outputs of + 200V and -200V and both outputs have to be regulated. The projects I have found regulate only on the positive side and my application requires regulation on both sides. Can anyone suggest a circuit for this...

Hello all I made a sepic converter with UC3843. But i had problems with the regulation and current behavior in the mosfet. the input is 10 ~25V and output is 14V 0,8A. When the input is above 14V, the current in mosfet is good, but under 14V, the current is not correct, like the attached...

Hi there! i´m having problems to stabilize a feedback for smps full bridge 1200 W. here is the schematic attached. i´m using the uc3524 and optocoupler. i tried many values of R and C in TL431 and in the compensation of ic controller, but without sucess. anybody can help me? tks Marcelo

Hello all.. i´m working in a smps flyback 138W DCM input: 80 - 250 Vac, output 13,8V x 10 A. the schematic is this: it´s working, but when i apply load (about 4 A) the leakage voltage across the mosfet is very high... look: . the transformer is 42/15 core, prim 11 + 11 turns, secondary 3...