smps transformer

[jagdeepsingh]

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 CALCULATE HOW MANY TURNS OF COPPER FOIL I HAVE TO MAKE??? AND DIMENSIONS OF COPPER FOIL ?? PLEASE HELP

 

[MicrosiM]

Circuit you are using?

I dont understand your question, "THE SECONDRY COIL I WANT TO WIND WITH COPPER FOIL NOT WITH COPPER WIRES "


regards

 

[jagdeepsingh]

i want to make this http://www.danyk.wz.cz/svar_en.html take a look

Circuit you are using?

I dont understand your question, "THE SECONDRY COIL I WANT TO WIND WITH COPPER FOIL NOT WITH COPPER WIRES "


regards

 

[mgee]

hi guys can u pls advice me wat kind of core transfm to be used n wire diameter for +/-150v@20 amps

 

[Tahmid]

300V * 20A = 6000W

Before suggesting anything regarding the transformer, I would like to know if you have previously worked with SMPS and successfully designed SMPS circuits. If not, you should start with something small like 100W or 200W. Then you can look at scaling up.