How do I regulate voltage in my power supply?
I'm a beginner so pleaase deal with me. I'am building a AC-DC power supply. The transformer I'm using has an output of 12.6V and 3A. I used a full-wave rectifier to turn AC into DC. Now I need a way to regulate the power supply's output voltage. I did some research but I'm still not sure what I should do. I could use a potentiometer, or substitude one of the resistors in a voltage resistor for a potentimeter ... whats the difference? If I do use a potentiometer how do i choose which one I need? Do I use an adjustable volage regulator?The load Ill mostly use it for requires 2.3A and a voltage of 3-12.6V. But I want the freedom of using it for other stuff. Also, in what way can I regulate the current? Sorry for all the questions, Im just confused after everything Ive read online.