Recent content by jagdeepsingh

hello sir i'm using this formula to calculate the turns form transformer and inductor design handbooks third edition.

hello guys i prepared a excel sheet for calculations of transformer, can some please check it and tell me if everything is ok...

hello sir first of all thank you very much for helping me... I tried to optimize my layout and this what i did... Based on that you said :) now the jumper are used only for reduce the path from gate driver to fet's emitter.

hello thanks for ansewring... i resolved these oscillations with an rc snubber across the primary of transformer.. but forward converter don't needs the snubber across the primary.... i'm getting a bit confused.... i'm using RHR1520 DIODES as you said these are the modifications.... i will...

sorry

Hello guys i need help... first of all this is my schematic of power stage and the problem is that i get the oscillations on gate drive waveform when the igbts are off.. the increases with increasing loads these waveforms are taken with 830 watt resistive load.. Output voltage fixed on 24...

soory for bad quality image

Hello microsim i want to ask if its possible to have your eagle designe files because i would like to add this part to make it variable voltage and current ? Or if you have time to do for us thanks in advance :)

better result after disabling soft start :)

HII KX36 THANKS FOR HELPING YOU ARE THE ONLY ONE THAT GIVING ME ADVICES THANKS AGAIN :) FOR NOW I HAVE NO EXPERIENCE WITH SG3525 CAN YOU PLEASE HELP ME MAKING A VOLTAGE REGULATED CIRCUIT ?? in the meantime I'M ATTACING SIMULATED AND IMPROVED DESIGN WITH TL494 WILL YOU PLEASE CHECK? MANY...

hello kx36 what do you think about this?

here is the schematic :)

Hi guys first i want to tell that my english is not good because i'm from itay :) my problem is calculating transformer details (primary and secondry turns) i'm using this circuit: HERE ARE THE PICTURES OF WAVEFORMS: ON GATE DRIVER MOSFET: ON IGBT LOW SIDE GATE: NPUT VOLTAGE IS...

HELLLO I NEED HELP I'M MAKING A INVERTRE WELDER TRANSFORMER DATA: E 71/33/32 N87 FOR 50V OUTPUT I HAVE 13 PRIMARY TURNS 0.67mm X 20 WIRES AND 8 SECONDRY TURNS 0.67mm X 58 WIRES THE PROBLEMS IS : THE SECONDRY COIL I WANT TO WIND WITH COPPER FOIL NOT WITH COPPER WIRES SOO HOW CAN I...

HELLLO I NEED HELP I'M MAKING A INVERTRE WELDER TRANSFORMER DATA: E 71/33/32 N87 FOR 50V OUTPUT I HAVE 13 PRIMARY TURNS 0.67mm X 20 WIRES AND 8 SECONDRY TURNS 0.67mm X 58 WIRES THE PROBLEMS IS : THE SECONDRY COIL I WANT TO WIND WITH COPPER FOIL NOT WITH COPPER WIRES SOO HOW CAN I...