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does anyone have a working smps power supply...

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qmriso

qmriso

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i want to make a SMPS power supply..need the working one...i already try 3 design but the output is not very stable...the voltage output that i required is +3.3v,+5v,-15v and +15v...plz help me...TQ
 

dude, there's a lot on the net..try to google out..
 

smps have only 4 different voltages
+/-5v and +/-12V
**broken link removed**

if you want to get +3.3V use LM317 with proper resistor to produce 3.3v and input as 12V

for 15V use 7815 with input to +12V and gnd to -12V

for -15V use 7915 with input as -12V and gnd to +12V

Bibin John
www.bibinjohn.tk
 

yogi said:
for 15V use 7815 with input to +12V and gnd to -12V

for -15V use 7915 with input as -12V and gnd to +12V
Click to expand...

7915 and 7915 are not SMPS , they are linear power supplies
 

you didnot mentioned current ....
 

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