Dear Forum,
I built the attached schematic on a home made PCB. When there is no load on the output, the output voltage varies from about 2.77V to 30V. But when I connect a load (12V, 20W bulb), the output voltage goes down to 0.14V and the current is about 0.18A. If I rotate the 100K potentiometer there nothing is happening.
I also noticed that the UA741 is heating up while the load is connected.
I also checked the PCB and there are no bridges.
What should I do to make this project working ?
More details: input voltage about 40Vdc, output varying between 2.77 and about 30V, the voltage on the 0.1ohm resistor while the load is connected is 0.02V.