Currently I am using Top249yN in my design to have a various out out of 20v, 15v, -15v and 5v respectively. But the problem I am facing right now is that whenever I am switching ON the power supply it gets burn out the TOP SWITCH.
I am attaching my design lay out with this mail.
Would you mind providing me the more detail regarding the transformer design please. As of now these are the primary and secondary voltage in my circuit.
P1-110v S(12-11) - 20v
S(9-8-10) - +15v and -15v
S(6-7) - 5v
S(4-5) - 15v (This is the more confusing part to me bcz the control switch is driven by the MOC8102 optocoupler)
S(14-15) - 5v
Please have a look on my design and rectify it if needed. Waiting for yours positive reponse.