Hello All,
I am new to electronics and have been researching AC/DC power supply circuits.
As I understand it a basic power supply works like this.
AC power --> Transformer( Takes the AC voltage down to a lower voltage) --> Rectifier( Takes the ac voltage from transformer and makes it no longer go through negative cycle) --> Smoothing Capacitors (evens out fluctuations to create smoother waveform) --> Voltage Regulator ( further smooths signal to a perfectly smooth dc signal)
With that all said. I have a power supply at home that is a regulated power supply putting out 27v. I am trying to figure out where I would need to modify in order to convert it to a variable power supply and what steps would be necessary to have it be constant voltage and constant current. The power supply uses LM723CN volage regulator. I am guessing I'd need to someone interface with this IC with a potentiometer to be able to vary the output voltage.
Am I on the right track with this project ? Below are pictures of the power supply that I have.
https://imgur.com/gallery/JeTFYLH