designing 40 v power supply

[jigarpatelp]

help to design 40 v power supply using regulator or any other method.

I've tried lm317 but unable to produce desired output.if you have solution So please help me.

Thank you,

 

[schmitt trigger]

There is the LM317HV version, that goes all the way to a 57 volt output.

 

[sri5496]

try power integrations tiny switch controller, PI has got their own sim tool also with which u can get reference circuits