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.

Register Log in

Low cost and efficient design to convert 210 to 250 VAC in to 24VDC

Status
Not open for further replies.
S

sr_raval

Advanced Member level 4
Joined
Jul 23, 2009
Messages
115
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,296
Activity points
2,283
Hello,

I am looking for a proven design which can convert 210 to 250 VAC in to 24VDC; i am looking for a following specification in this design

1) This converter has to work from input variance in the range from 210 to 250 VAC supply voltage (most of the time its normally work on 230VAC voltage but need to consider the AC fluctuation)
2) 24VDC output voltage has to be pure regulated supply
3) O/P current of the 24VDC should be near about 5A
4) Circuit has to be small, efficient and most importantly low cost
5) Is it possible to design transformer less (without transformer) design?
 

Hello Everyone,

Kindly help me to design such converter ....

Thanks in advance
 

yeah itz surely possible jus with the help of 12 0 12 transformer then use a full wave rectifier.....n a load u can surely get 24v
 

You need to use some wound component for this.
Often, you can't have small, efficient and low cost simultaneously. You need to compromise somewhere, either in cost, or in size.
Is this a 1-off or a production item? For 1-off, the low-cost way will probably be the conventional transformer based supply.
 

Thanks Sky,

Then i would prefer to compromise in Size, can you suggest me any proven design?
 

yeah , i can agreed that some wound components are needed...but it is the easiest n i thnk low cost method too...somewhere matter of size wudnt considered here.
 

That sounds good, can you post that circuit so i can check wheather its applicable in my criteria or not?
 

Here is one approach, see here, in diagram 42 is a 19V 8A power supply. With some design changes, it would support your 24V 5A requirement, and the datasheet contains the design calculations.

If you want a non-switching design, then you need a large transformer, some diodes or a bridge rectifier, a few capacitors and a linear regulator circuit. In other words, a classic transformer based PSU (for which you can google) followed by a linear regulator. There should be some ideas for the regulator portion in threads like here.
 

Thanks Sky, Diagram 42 really helps me, but currently i am looking for ready design which can concert to 24VDC, can you suggest any circuit?
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top