Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

need help to design a supply voltage board

Status
Not open for further replies.

glias

Full Member level 2
Joined
Jul 31, 2004
Messages
140
Helped
2
Reputation
4
Reaction score
2
Trophy points
1,298
Activity points
1,076
Hello
I need to design a supply board that with those input / output characteristics :

Vin = +/-15V (+/-5%)
Vout = +/-12V (+/-1%) - with Iout = +/-3A

I also want to have minimal noise so a linear type should be the best, but since I'm not a supply specialist, I would want to know your opinion of the topology that I should choose ?

regards
 

LM317/LM337 are positive/negative variable regulators for 1.5A, you can use them with external pass transistor but you will not have shortcircuit protection unless you add an additional circuit.
LM7812/7912 are fixed 12v/-12v 1A regulators , you can use them the same way as above for more current

LP350/LM333 are variable regulators like lm317/337 but can work up to 3A so you don't need any other component.

Alex
 

Thanks for your help, I finally found a LT1085 / LT1185 which seem to match with my requirements
thanks for your help.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top