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How to build a 0-50V voltage and 0-3A current controlling DC power supply circuit?

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wolf12

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How to build a 0-50V voltage and 0-3A current controlling DC power supply circuit?
 

hi
can you be more specific like input range voltage and current and similarly you output requirements
 
som_raparty said:
hi
can you be more specific like input range voltage and current and similarly you output requirements
Click to expand...

I can get 230V to 50V 3A transformer as the input, I dont know how you control current 0-3A

---------- Post added at 21:01 ---------- Previous post was at 20:59 ----------
muthukumar_ece2004 said:
Its a somewhat complex schematic!
Click to expand...

Can you provide me a understandable schematic? Thanks.
 

santoshaxl said:
just type ( 0-50V voltage and 0-3A current controlling DC power supply circuit ) in textbox Google then click here 0-50V 2A Bench power supply
Click to expand...

I have built one of "electronic-lab" power supply circuit about a year ago, it didnt work. Give me some info on how to make one (want to control current 0-3A) , I might be able to design a circuit. Im a first year student, I admit I don't know much, but I can try. Thanks.
 

If you want to generate from 220V AC. First, please use a full-bridge and LC filter to rectify it to a croase DC. Then use a flyback AC-DC converter to generate 50V, 3A output.
 

i've made 30v power supply few years back i'll give you diagram you have to wait may be tomorrow i am outside my work station ok
 

Check out LM338.
Not going to get much simpler than that.
You will have to add more external stuff if you want to be able to set a current limit
below 5A , but that can come later.
Cheers
Rob
Sorry , didn't see the 50V rating.
Try a lm317HV with external pass transistor. Still pretty simple!!
 

neddie said:
Check out LM338.
Not going to get much simpler than that.
You will have to add more external stuff if you want to be able to set a current limit
below 5A , but that can come later.
Cheers
Rob
Sorry , didn't see the 50V rating.
Try a lm317HV with external pass transistor. Still pretty simple!!
Click to expand...

I want to know how to control current.

---------- Post added at 00:17 ---------- Previous post was at 00:15 ----------
santoshaxl said:
i've made 30v power supply few years back i'll give you diagram you have to wait may be tomorrow i am outside my work station ok
Click to expand...

Ok upload it when you can. Thanks.
 

what types of converter are you talking about? DC-DC Converter or ACDC converter?
 

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