Resistor Controlled Programmable Power Supply Using OPA547 Op-Amp

A programmable power supply can easily be built using the OP547. Both the output voltage and output current are user-controlled. Circuit shows using potentiometers to adjust the output voltage and current. LED connected to E/S pin through a logic gate indicates if the OP547 is thermal shutdown.

  • Supply in 24V @ 1Amps
  • Output 1V to 18V
  • Output Current 0 to 750mA
  • LED Indicates Thermal Shutdown