hi i am supriya, i have smps with 230 ac input and constant dc output 12v ,but i need variable input ac voltage and constant output , can plz suggest me and can u get me circuit.

hi i need variable input smps and constantn output 12 v .can u me plzsuggest me

 

Most SMPS these days are designed to accept from 80-240VAC input.

 

Gah! Like i said most switchmode power supplies out there these days accept from 80-240VAC input.

 

http://37.media.tumblr.com/tumblr_lynho1M4NJ1r9bstao1_500.png

 

any idea about smps means plz help me

define "variable input"
define the current requirements?

 

arent two posts on this enough? why not read the answers on the first one?

 

...but i need variable ac input...

Within what range of voltage? Constant frequency?

In other words, anyone that might be able to help you needs the specifications.

 

How many posts do you need!!

 

Hello,

I merged the thread and deleted the unneeded posts.

Bertus

 

hi I AM Supriya, i need smps 180 to 280 variable ac voltage input and output 12 dc voltage constant ,50 HZ frequency and 2A current.