New Power Supply Build, Reached Some Problems and Need Some Help.
Intro: New Power Supply Build, Reached Some Problems and Need Some Help.
Hi, So I'm building a power supply, case is done, I've got one output of 35v 10 amps, I'm trying to add an adjustable 1.5 to 24v 5 amp but I can not seem to get it to work, I'm using the lm338t adj v-reg, and have tryed several different set ups from simple to complex, and nothing seems to work, the closest I'm getting in 1.5 to 24v 1.8 amps. with the more complex ones i'm not even getting power through. I will upload some images, of what i have
STEP 1: More Complex Schematic
here is an image of the more complex schematic
STEP 2:
here is a schematic of one of the simpler ones I'm going to try this one again.
desperate need of help her, I'm new at this, and until I get this up and running i can't move forward with my project
11 Comments
pfred2 12 years ago
I am having a little trouble following what is going on with your board. I spent a few minutes in a program and came up with this that is a little clearer:
http://i.imgur.com/FHJYh.jpg
Probably be a little easier for you to build too. Now I'm not saying that my design is the have all and end all or if it is even right the way as it is. I merely offer it as an example of something closer to better?
Like you say it is a simple circuit so it should look simple.
You can get the software I used here:
http://www.cadsoftusa.com/
Maybe it'll help you out some as you go along? I know it'd have helped me out when I was first starting. Anyhow good luck and keep at it!
P.S. The software can even make more complicated circuits "simple" if you really spend some time fiddling around with it. There are tricks you pick up as you use it.
R.A.T.M 12 years ago
pfred2 12 years ago
R.A.T.M 12 years ago
Dr.Bill 11 years ago
Use v.2.60.01 it works for me.
Dr.Bill 11 years ago
HoldOnTight 13 years ago
zack247 13 years ago
klee27x 13 years ago
lemonie 13 years ago
https://www.instructables.com/edit/new?type=forumTopic
-And tell us in detail how things don't work. You know that if you're dropping voltage, the rest of it gets wasted as heat?
(Don't start sentences with "so", it reads badly)
L
mattthegamer463 13 years ago