1.2V to 37V Regulated Power Supply – 1.2A

  • Rajkumar Sharma
  • 16964
    Views
  • easy
  • Tested

1.2V_to_37V_PSU_pic

This project provides a variable output power supply ranging from 1.2 to 37 V @ 1.5 A.  Uses industry popular LM317 in TO3 package for delivering variable output voltage.

Specifications

  •  Input 40 VDC or 28V AC 2Amps
  •  Output : 1.2 to 37 V @ 1.5 A regulated low ripple DC voltage
  •  Heatsink for regulator IC
  •  Onboard bridge rectifier to convert AC to DC
  •  LED indication at input of IC
  •  Thermal overload/short circuit protection (provided by IC feature)
  •  Screw terminal connector for easy input and output connection
  •  Relimate connector for connecting potentiometer (POT) to the PCB
  •  Filter capacitors for low ripple DC output
  •  Four mounting holes of 3.2 mm each
  •  PCB dimensions 91 mm x 66 mm

Schematic

1.2V_to_37V_PSU_sch

Parts List

1.2V_to_37V_PSU_BOM

PCB

Comments

  • Aakash

    What are the diffrence between LM317K , LM317T etc..
    Thankyou…….

    5 years ago
    • Electronics Lab

      K is for TO-3 package and T is for TO-220

      5 years ago
  • Charles

    is the potentiomiter 5 volt logic? Could this be removed and have the voltage controlled by Arduino PWM?

    4 years ago
    • admin

      Potentiometer adjusts the current that goes to ADJ pin of regulator, so you can’t replace it with a PWM signal. I would propose to use a digital potentiometer instead.

      4 years ago
  • we cant change the Voltage or not like 28-0-28 i change to 25-0-25 he accept that voltage

    4 years ago
  • How about changing the voltage in 25-0-25?

    4 years ago
  • admin

    This power supply provides a single output voltage. If you need symmetrical power check this project: https://www.electronics-lab.com/project/dual-adjustable-regulated-power-supply-1-2v-to-37v-dc/

    4 years ago

Leave a Reply

RELATED PROJECTS

X
PS5 & XBOX Series X Giveaway

By continuing to use the site, you agree to the use of cookies. more info

The cookie settings on this website are set to "allow cookies" to give you the best browsing experience possible. If you continue to use this website without changing your cookie settings or you click "Accept" below then you are consenting to this.

Close