1.2 – 15V/3A adjustable regulated power supply

  • Rajkumar Sharma
  • 36.166 Views
  • moderate
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  • SKU: EL35817
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Specifications

This kit provides a variable output power supply ranging from 1.2 to 15 V @ 3 A.  It uses Low Dropout Positive Regulator LM1084 in TO220 package for delivering variable output voltage.

  • Input – 18 VAC/DC
  • Output – variable output from 1.2 ~ 15 V @ 3 A Regulated low ripple DC voltage
  • Heatsink for regulator IC
  • On board bridge rectifier to convert AC to DC
  • LED indication at input of IC
  • Zener trimmed band gap reference, current limiting and thermal shutdown (provided by IC feature)
  • Power Battery Terminal (PBT) for easy input and output connection
  • Onboard PCB mounted Potentiometer (POT) for varying the output voltage
  • Filter capacitors for low ripple DC output
  • Four mounting holes of 3.2 mm each
  • PCB dimensions 46 mm x 58 mm

Schematic

schematic

Parts List

parts

LM1084 Datasheet

lm1084

PCB

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11 Comments
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yuva

where is the pcb design sir

B.M.R industries (carewell) sreenivasulu

Sir which amp transformer uses sir

Ej

Can i use 24v transformer here? or does the regulator cant handle it? If it does do i need to change the resistors/capacitors?

Ej

Thanks! How about if i use 12Vac transformer? What would be the maximum output voltage of the power supply?

Ej

Is there other voltage regulator i can substitute? LM1084 is not available here

tozeyana

if i want to get +/- 1.5v DC – 15v DC, what must i add to circuit?

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