Jump to content
Electronics-Lab.com Community

Adding current boost to voltage regulator TL783


jhanus

Recommended Posts

Hi,

I found at my local shop voltage regulator TL783 (http://www.ortodoxism.ro/datasheets/texasinstruments/tl783.pdf), it can regulate from 0-125V, I can't use any other regulator because my input voltage is 40VDC.

Problem is that this regulator from characteristics can only deliver around 700mA output at input-to-output voltage differentials of 25 V, but I need 3A.

So can somebody help me to add current boost like it's done here (http://ourworld.compuserve.com/homepages/Bill_Bowden/page12.htm#317pass.gif), under title "LM317T Voltage Regulator with Pass Transistor".

In datasheet there is circuit for current boost, but I would prefer method above.

How to calculate this components would be of great help, because there is high probability that I can't buy the same transistors.

Thank you.

Link to comment
Share on other sites


Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
×
  • Create New...