I am a nub is smps and just completed my first breadboard isolated smps with 24 volt input. I used the SG6848D controller from Ebay. Anyone has any suggestions for a better IC.
Just some details
Input voltage 24 volts Output 5.
Used an opto coupler for feedback.
The transformer seems to work okay. I designed it for 3 amps. The problem is when I exceed 2 amps the signal gets very jittery and it stops functioning. I was able to go to 3 amps with no feedback using a pulse generator. Even higher but no regulation.
Any helpful suggestion will be appreciated.
Just some details
Input voltage 24 volts Output 5.
Used an opto coupler for feedback.
The transformer seems to work okay. I designed it for 3 amps. The problem is when I exceed 2 amps the signal gets very jittery and it stops functioning. I was able to go to 3 amps with no feedback using a pulse generator. Even higher but no regulation.
Any helpful suggestion will be appreciated.