Dec 1, 2006 #1 qmriso Member level 5 Joined Nov 30, 2006 Messages 80 Helped 2 Reputation 4 Reaction score 1 Trophy points 1,288 Activity points 1,879 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
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
Dec 1, 2006 #2 A ahmedsalah00 Member level 2 Joined Nov 27, 2006 Messages 47 Helped 2 Reputation 4 Reaction score 1 Trophy points 1,288 Location Cairo - Egypt Activity points 1,550 You have one in your computer
Dec 1, 2006 #3 M mayu_wakui Advanced Member level 4 Joined Feb 18, 2004 Messages 117 Helped 9 Reputation 18 Reaction score 2 Trophy points 1,298 Activity points 967 dude, there's a lot on the net..try to google out..
Dec 2, 2006 #4 Y yogi Full Member level 6 Joined Jan 8, 2005 Messages 336 Helped 22 Reputation 44 Reaction score 5 Trophy points 1,298 Activity points 2,177 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
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
Dec 2, 2006 #5 A ahmedsalah00 Member level 2 Joined Nov 27, 2006 Messages 47 Helped 2 Reputation 4 Reaction score 1 Trophy points 1,288 Location Cairo - Egypt Activity points 1,550 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
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
Feb 28, 2008 #6 D drbizzarow Advanced Member level 1 Joined May 24, 2006 Messages 414 Helped 25 Reputation 50 Reaction score 15 Trophy points 1,298 Activity points 3,662 you didnot mentioned current ....