Switch Mode Regulated DC Supply

[bimbla]

I want to eliminate the 50Hz input transformer in the regulated power supply design operating from mains.

Can I have a reference to those you normally find in DVD players etc.?

I will come up with means to change the o/p power rating.

The electric isolation transformer should be in the HF switching section.

Any ready references are welcome.

bimbla.

 

[goodboy_pl]

several manufacturer are designing integrated switchers for flyback switched mode power supplies like:
www.irf.com
www.powerint.com (topswitch)
www.st.com (viper)

refer to their application notes for details (specially powerint !!!) about transformer design and construction, closing the feedback loop, and isolation using optocoupler.

BEST!

 

[alphi]

you can go to www.mcu.cz to download dvd shcematics,then find it's power supply.

 

[kiks]

With regard to a switched mode power supply, does anyone have a circuit for a switched mode power supply for converting 220v ac to 12v dc at 500ma? I have a bit of a space constraint so a conventional linear power supply cannot be used.

 

[imported_Moderator]

Hi kiks,
go to powerint website. they have a low power family called Linkswitch which is suitable for ur application