Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronic 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.

Register Log in

Req:Digital adjustable power supply

Status
Not open for further replies.

dirace

Member level 3
Joined
May 12, 2001
Messages
58
Helped
2
Reputation
4
Reaction score
1
Trophy points
1,288
Activity points
411
powersupply adjustable digitally schematics

I need to know how can i digital abjust the Vout of a power supply basted on voltage regulators like LM317.Any Shematics?
THNX
 

Moss

Full Member level 3
Joined
Jul 24, 2001
Messages
170
Helped
9
Reputation
18
Reaction score
2
Trophy points
1,298
Activity points
1,631
digital adjustable power supply

Simple way to control your power supply is shown it LM 317 datasheet. You can change transistor with integral DAC.
 

dirace

Member level 3
Joined
May 12, 2001
Messages
58
Helped
2
Reputation
4
Reaction score
1
Trophy points
1,288
Activity points
411
digital adjustable suplly

I saw the this example but it dosent say how to calculate the resistors or what transtore to use. a also simulated the circuit with multisim and it has a strange behavior.
 

swilly

Member level 2
Joined
Oct 9, 2001
Messages
44
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,286
Location
Argentina
Activity points
358
digitaly adjustable power supply schematic

Is very easy to design a digitally controlled power supply if you use this integrated circuit: OPA549
You can obtain a free sample in www.ti.com (Texas Instruments site).
You can see in the datasheet of this IC an example of a power supply that have voltage and current controls with two DACs.
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top