I am new in Electronics, and spend my off time ib electronics as a hobbyist. I was trying to make a LM317 based high current voltage regulator. I came across the following link.
http://www.reuk.co.uk/wordpress/electric-circuit/lm317-adjustable-power-supply/
I am confused between circuit diagram 2 and 3 on this page. These 2 circuits shows the power transistor bases are connected to 2 different points. I already made a circuit using the 2nd diagram, which didn't work. I could only regulate between 18v - 27v for a 32v DC input. Although I understand that the 2 circuits use different number of transistors to support different amount of output current, but still in doubt which one is practically correct. I even simulated the 2nd circuit which worked per expectation. But when I built it, it didn't work. Could you please confirm which of these diagrams are correct with a little explanation?
http://www.reuk.co.uk/wordpress/electric-circuit/lm317-adjustable-power-supply/
I am confused between circuit diagram 2 and 3 on this page. These 2 circuits shows the power transistor bases are connected to 2 different points. I already made a circuit using the 2nd diagram, which didn't work. I could only regulate between 18v - 27v for a 32v DC input. Although I understand that the 2 circuits use different number of transistors to support different amount of output current, but still in doubt which one is practically correct. I even simulated the 2nd circuit which worked per expectation. But when I built it, it didn't work. Could you please confirm which of these diagrams are correct with a little explanation?