switching power adjustable !

T

thaithanh

New Member

• Nov 2, 2008

• #1

I want made a switching power with output volt adjust 0.5-12 v 10A,but i cant see any circuit diagram from google .Please give me an idea.

 

Hero999

Banned

• Nov 3, 2008

• #2

That's because you have to design it for yourself.

A good start is to research existing designs as a basis for your design.

 

T

thaithanh

New Member

• Nov 4, 2008

• #3

Thanks !
I have some switching power , I understand principle of them but I want output volt adjustable. I think somebody can give me some idea !

 

Hero999

Banned

• Nov 4, 2008

• #4

You either vary the voltage referance or the feedback network. If you know how a switching regulator works then it sholudn't be hard to figure out.

 

T

thaithanh

New Member

• Nov 4, 2008

• #5

Thanks!
If i made without feedback . Any Idea ?

 

Nigel Goodwin

Super Moderator

Most Helpful Member

• Nov 4, 2008

• #6

thaithanh said:

Thanks!
If i made without feedback . Any Idea ?

Click to expand...

You NEED feedback!.

 

Willbe

New Member

• Nov 5, 2008

• #7

And messing with the guts of a switcher might cause other problems that only switcher designers would know about.

I'd search for an IC switcher chip that offers variability; if none exists I'd say you're biting off more than most people can chew.

You might be able to do a switcher followed by a linear. 10A is not that much nowadays.

 

Last edited: Nov 5, 2008

jpanhalt

Well-Known Member

Most Helpful Member

• Nov 5, 2008

• #8

You might also try the National Semiconductor website to see whether a Simple Switcher can be adapted to your use. The need for a 0.5V output may be a problem. At least, you can try various combinations of input/output/current and get National's feedback on which of your requirements excludes any of its products. Here is the link: **broken link removed**

John