Switching Digital Power Supply

[didiet78]

Does anyone have schematic Switching Digital Power Supply? I need power supply 0-30V 5A. Linear regulator not an option, to much power to waste


Thanks

 

[btbass]

Visit websites of ic manufacturers of switching regulator IC, such as Maxim, IR, philips etc.
Then look at the data sheets. You will find lots of application circuits.

 

[vijaya_narayana]

just try national website they have online simulator for desigining the power supply

 

[didiet78]

How to control them with atmega8 and display volt and current usage and current limit?

 

[download_crux]

try

for topswitch
www.powerint.com

or

for fps

www.fairchildsemi.com

 

[didiet78]

What i mean is someting like in
http://tuxgraphics.org/electronics/200707/bench-power-supply-unit.shtml
. But it use linear, i want change to switching.

 

[tjalps]

Hello!

This is not the best idea. We have some expirience with that. The main problem is noise.

Regards!

 

[didiet78]

What you use? Linear or switching? May i have your schematic?

Thanks

 

[tjalps]

We are using LM2679 and realy don't waste your time. There is to many noise.

Regards!

 

[didiet78]

May i take a look your design? I really like waste my time.

 

[momename]

Regulator 0-30V 5A by IC LM723 & 2N3055 x 2(with PCB)

**broken link removed**

Read more : **broken link removed**

 

[mece_mkd]

I see this power supply , and i think that there is some mistake in PCB with resistor (75ohms) am i right ? i'm waiting for answer