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Circuit diagram for power supply kit
Dhanushka:
https://www.ebay.com/itm/0-30V-2mA-3A-Adjustable-DC-Regulated-Power-Supply-DIY-Kit-Short-with-Protection/272492114559?hash=item3f71cbb27f:g:EXAAAOSwa~BYWQ85
Can any one give me the circuit diagram for this kit or any other one better than for this according to following specs?
0-30V variable output voltage with variable 0-3A current
Thanks
lordvader88:
It's some type of buck/boost converter since the max Vcc is 24V but the outout goes to 30V . I don't see any inductors tho, how is that powering 3A if there's no external inductors ?
mariush:
Pictures in the link are clear enough to draw the schematic yourself.
Dhanushka:
Dear lordvader88,
The peak value of 24 V is greater than 24 V. Therefore, it has high DC level of greater than 24 V after regulation. Also, it needs a at least 3A transformer for sufficient current of 3A.
MosherIV:
So you are saying that the kit needs a 24V 3A transformer?
Sounds like a linear type. With 24V input V, the psu will struggle to deliver good clean V above 22V under load. 24V transfers are called 24V for a reason - they are designed to deliver 24V under load.
Then the regulation of the psu will loose another 2V approximately.
Sounds like the suppliers either do not know what they are doing or they hope that buyers are not going to notice the poor high power performance or assume it is an assembly issue.
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