Variable Voltage supply

[alin_im]

Hi guys,

Can you help me with a schematic for a variable voltage supply 0 - 40 with a constant voltage independent of the load. like the variable supply that you set without any load attached and then attache the load and the voltage is the same. I manage to make the current limiting circuit but now i am struggling with the voltage part.

[nickn4]

I am at the point of starting a new project to build my own power supply, so i'm very interested in similar projects of other people, but i doubt i will be of any help.
none the less i notice, where is the input coming from? i'm not familiar with power supply schematics so maybe i'm missing something really obvious?

nick

edit; i noticed the ground i the middle of the schematic, maybe i am starting to sort it out, but please still point it out for me please? 
vcc- 1 and vcc+ 1 are output?

[Matty272]

Have you looked at this video that Dave posted?