If you like to learn about simple regulator circuit like me. I am showing you, tiny constant voltage circuit using two small transistors. It special because..
Let's make the Zener diode with yourself!
Simple circuit Though very ancient it still has a lot useful.
This circuit has special feature that can supply output voltage widely range is during 0.1V to 50V. With value of the load regulation changes not more than 0.005% between 0A to 1A.
This is DC switching power supply circuit with PCB, adjustable voltage 0-45V at 8A current max. low ripple and noise. full protection as most good supply [...]
This is simple variable power supply circuit 0-30V 2A using transistors basic circuits for beginner can builds easy with a few parts looks circuit 2 .....