Regarding 24V 3A, Powersupply

[Raju_epigon]

smps 24v 3a

Dear all,

I am designing a Fire alarm Panel, for that I need 24V 3Amps SMPS Vin(90-280VAC).
Anyone have good circuits or ICs to get this.


Thanks in Advance,

R. Balasubramaniaraju

 

[IanP]

24v/3a smps open frame power supply

Consider this:
90-240Vac-to-24Vdc@3A conversion requires some experience ..

I would look for an off-the-shelf solution that on one hand provides you with a proven smps power supply but in the same time is compact (open-frame, or removed from a “black box) and price-wise accepted ..
Your roll will be limited to make room for a third-party working device ..

I wouldn’t try to re-invent a wheel ..

Rgds,
IanP

 

[zirtapoz]

uc3844 circuit

Dear all,

I am designing a Fire alarm Panel, for that I need 24V 3Amps SMPS Vin(90-280VAC).
Anyone have good circuits or ICs to get this.


Thanks in Advance,

R. Balasubramaniaraju

if u use transformator and bridge diode, try to use LM 338. datasheet explains how to build your circuit.

Good luck

 

[rvionics]

Please Visit www.powerint.com (Power integration TOPGX series ICS)
You will get a ready application circuit & Design Spreadsheet to design Transformer ( Magnetics).

 

[Awarapunshee]

If you need a switch mode then modify this circuit at:



Enjoy!

 

[barrybear]

I would go with the sugestion that IanP has given . It is most likely the first place youe equipment will breakdown is the power supply . So much easyer to just swop out the power modul rather than go for a component level repair . especially on site.

 

[satya_vijayawada]

tyr this link

for topswitch

www.powerint.com

for fairchild power switch

https://www.fairchildsemi.com/products/analog/fps/application.html

 

[grittinjames]

Hi,

You can use a circuit with uc3844

for 12V/5A you can use following link.

Double the secondary winding and adjust tl431 feedback voltage
http://lightelectrotech.googlepages.com/linktoprojects