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8051 AT89C2051 based variable DC power supply 1.0

Digital dc power supply using 8051 microcontroller for constant dc outputs.

  1. sajivjess
    Digital dc power supply using 8051 microcontroller for constant dc outputs. The fixed outputs are 3v,5v,6v,9v,12v. The user can change the resistor values to get other voltages. AT89c2051 is used here, which is a 20pin 8051 microcontroller.

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    Circuit diagram
    Circuit.jpg
    willy likes this.