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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?
 

som_raparty

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hi
can you be more specific like input range voltage and current and similarly you output requirements
 

wolf12

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hi
can you be more specific like input range voltage and current and similarly you output requirements
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 ----------

Its a somewhat complex schematic!
Can you provide me a understandable schematic? Thanks.
 

wolf12

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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
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.
 

leo_o2

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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.
 

santoshaxl

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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
 

neddie

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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!!
 

wolf12

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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!!
I want to know how to control current.

---------- Post added at 00:17 ---------- Previous post was at 00:15 ----------

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
Ok upload it when you can. Thanks.
 

panshiyunduan

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

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