D
Deleted member 550749
I have ka7500b and pair or mje13009 and want to make SMPS , any good or better schematic for for this build plz, direct 220volt ac gonna use plz provide schematics and this is for personal use or home use ❤️
google ATX psu schematics..https://www.pinterest.ph/pin/764134261781794992/
D
Deleted member 550749
Not single rail, want to build dual rail like 30-0-30 under 10amp or 300watt , for amp class A or AB
It´s exactly the same, you just wind secondaries for the voltage you want.
Insted of various 5V, 3.3V, 12V, -12V, etc. sections, yo wind for 2 30V sections,connecting themn series and groun ding the center tap.
You might meed to wind a 5V section, even if you won´t use it, to get the reference voltage for TL494
The "electronics"/schematic part is easy, but where will you get the transformer and inductors?
Your best bet could be to modify a standard PC supply, removing current windings and adding your own, leaving everything else the same.
Insted of various 5V, 3.3V, 12V, -12V, etc. sections, yo wind for 2 30V sections,connecting themn series and groun ding the center tap.
You might meed to wind a 5V section, even if you won´t use it, to get the reference voltage for TL494
The "electronics"/schematic part is easy, but where will you get the transformer and inductors?
Your best bet could be to modify a standard PC supply, removing current windings and adding your own, leaving everything else the same.
primary turns is around 22 #24, 300vdc primary, so 300/60 = 5 turns ration so if primary is 22 turns, secondary is 4.4, if you make it 6 turns #20 with center tap, then primary should be 30 turns...you can use the ferrite core found in many atx psu..if you bifilar wind it, just 3 turns...